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  • Running Windows 7 physical disk virtualized under Linux

    - by CajunLuke
    I have an existing Windows 7 installation that I'd like to virtualize under Linux. Windows boots fine on Disk A, Linux boots fine on Disk B. (Both disks are SATA.) I can mount the Windows disk when in Linux. I've tried VirtualBox and VMWare Player and neither will allow me to boot from the other disk. VirtualBox doesn't seem to have the option to do so. VMWare Player has the option to have an IDE drive exposed to the virtual environment as a SCSI disk. I've tried that, but it throws the error "Cannot connect virtual device ide1:0 because no corresponding device is available on the host." I've verified that it's pointing to the correct hard drive. I'm willing to try other virtualization products, and I'm not averse to spending a little money to get this to work. I've seen this other question, and it's not a duplicate, as I haven't gotten that far yet. I'm also interested in solutions going the other way (Linux on Windows), but that'd be lagniappe. Gory Hardware Details: Lenovo T410, 2.4 GHz Core i5 (has virtualization extensions), 4GiB RAM, 2x 320 GiB SATA HDD, one in optical bay. Fedora 14 2.6.35.10-74.fc14.x86_64, Windows 7 32-bit.

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  • How can I extend / create a new partition from the following setup?

    - by Kiada
    I'm a little unsure what to do in this situation. When I try to create a new simple volume from the unallocated space I get an error because I already have 4 partitions. I have no option to extend either my C:\ primary partition or the E:\ logical drive. C:\ - Gaming Win7 install. D:\ - Storage Unallocated Space - Would somehow like to install OSX on a partition from this space. E:\ - Software Development Win7 install. I:\ - Ignore this. It's an external 1TB HDD. Do I have any options that do not involve formatting / losing information on either C:\ or E:\? Thank you. Link to visual disk partitioning setup image. Edit: A bit more information regarding partitions. Firstly, the image linked above is a screenshot of Windows 7 partitioning tool, easier to read than text I guess! H:\ System Reserved: 100MB NTFS C:\ 244 GB NTFS Healthy (Page File, Primary Partition) D:\ 294 GB NTFS Healthy (Primary Partition) E:\ 100 GB NTFS Healthy (Boot, Page File, Crash Dump, Logical Drive) Unallocated 292 GB Hope this helps :)

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  • How can I find which logon script is being run?

    - by user2517266
    I'm having an issue with network drives. Suddenly some computers and users aren't getting their mapped network drives from the logon script. I am NOT a domain admin, I don't have permission to login to the domain controller. And I know very little about Active Directory. The issue seems random, some users this day, different users tomorrow. Some computers run fine and some won't map no matter who logs in. They are mixed OS's XP (SP3), Vista, and 7. I was looking at the domain in windows explorer and I have found the batch file(s) that maps the drives in several locations, how do I know which one is actually being ran? The .bat file is located in \DOMAIN\NETLOGON\script.bat and \DOMAIN\SYSVOL\DOMAIN\scripts\script.bat and \DOMAIN\SYSVOL\DOMAIN\policies\GUID(Right? It's a crazy string)\User\Scripts\Logon\script.bat So, how can I figure out which one is actually being ran per computer or user? Cause they are all slightly different from each other and one of them doesn't map properly. Do all the files in NETLOGON get ran? Cause there are 15+ files in there. Or is it specified in Group Policy which one(s) get ran? EDIT: I am able to access a program called Active Directory Users and Computers, but the properties tab for any user is blank for the logon script.

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  • How to turn a DSL wireless modem to a wifi hub

    - by my_question
    I used to use DSL for my home internet and used Qwest Q1000 wireless modem. Now I switched to cable and use wireless router to cover the home. One problem is I just bought a desktop and I like to put it in a place far away from the router. The desktop only has cable interface, it does not receive wifi. The obvious solution is I go buy that little USB dongle which can receive wifi and plug it to the desktop. But before doig that, I am wondering if somehow I can re-use the Q1000 modem. The modem has 4 LAN ports and it has wifi antenna. I tried connecting the desktop to Q1000's LAN port, the system shows wire connection is in place, but I cannot access internet. It seems to me Q1000's wifi function is to broadcast the wifi signal out instead of receiving signal. I went to the Q1000 configuration page by going to web page of "192.168.0.1", it is not clear how to set it up. I also wonder one thing, my home wifi is encrypted, so if I want to let Q1000 to join the wifi, I need to somehow type in the password, I am not sure how to do that either. Anyway, maybe this thing cannot be used in this fashion. If you have any suggestion, please shed some light. Thanks.

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  • Computer makes odd noise. Replace almost every component. Computer still makes odd noise.

    - by ShimmerGeek
    My PC was getting pretty old, 5 years or so, and over the course of it's life I replaced the graphics card, HDD and a couple of sticks of RAM; but the PSU, processor, motherboard, fans etc. were all original. A few weeks ago, I started hearing an odd noise. I struggle to describe it, it sounded sortof like the 'click of death' you hear when a HDD may fail, but not quite... (And it was far less irregular) Also, I was sure I heard it once or twice a minute or two after I shut down the PC. This was going on very irregularly for a couple weeks. Some days I would hear no noise at all, others I would hear it often, maybe once every 30 seconds or so. I could find no common denominator - i.e. it did not happen more during gaming or any other intensive use. Anyway, I need my PC to sit some classes over the summer, so I put it in for them to run a HDD stress test and to replace a bunch of the components. I ended up replacing almost everything - the only elements I still have are my blu-ray drive and graphics card. They said when they started to run the HDD stress test it failed instantly (They started the test and it immediately said 'Test Complete' so they assumed it was at fault, and put a new HDD in since I was still under warranty with them.) I took it home a few hours ago, and I am still hearing the noise!!! Do you guys have any theories? I'm getting a little worried, I can't afford for my PC to suddenly fail during the next month - I have a lot of coursework to do. Any thoughts? Is it possible it could be the fan on the graphics card? I'm confused because it's so irregular. Any help would be much appreciated.

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  • How many bootable partitions are possible to have on one hard drive?

    - by draiden
    This may not be the correct place to post this; if that's the case, just let me know and point me in the right direction please! I'm thinking of building a box that needs to be lightweight and portable, and would need to be able to boot multiple installations of windows. I am needing to have multiple installations so that I can, for example, plug the box in to the network at one location, boot in to that location's partition, and have full access to everything I would normally need to do on a computer that has already been set up on that network. Then, when I go to the next client, I would be able to do the same thing, with the new location's partition, and have all of those network settings, drive mappings, etc., available there. Obviously I'd need to go through and set them all up on the different locations/networks, I'm not expecting it to magically know where I am and what I'm doing. It would be like I'm carrying around a computer that is configured for each place I need to go in one little box, instead of having to have multiple computers or having to reconfigure all the settings and such every time I go to another client. Or is there an easier way to do this that I haven't learned of?

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  • Some Portions of Computer Running Slow (Specifically Graphics)

    - by Mike Gates
    I noticed that a few things are running slow today on my Windows 7 laptop. Specifically, they are: Opening and closing windows takes several seconds for the animation to complete. Windows media player opens fine, but the movies are very laggy MMORPG's, such as RuneScape, are extremely laggy When waking my computer from sleep mode, after entering my password, my desktop takes about 3 seconds to fade in Other than those, everything runs at a normal speed. Things I've done that maybe contributed to this problem: Changed the graphics processor (by plugging in/unplugging the charger) [however, no matter how I change the graphics, I'm still getting this lagginess] Installed AdBlock, a Firefox addon [I recently removed it, and I'm still experiencing this problem] Went into Advanced System Settings, Clicked Settings, and unchecked a few visual things (such as the animation for opening and closing windows) [sure, this got rid of the opening/closing windows lag, but I like that little animation - plus that leaves all the other lag problems I'm experiencing] So, does anyone have any ideas/fixes? If so, please respond. Thank you. Some Other Information: I'm on a HP Pavillion dv7 laptop, 4285 Entertainment PC, with: intel CORE i5 inside, ATI Mobility Radeon Premium Graphics, Microsoft DirectX11 Opening and closing of windows: Defined as opening a program (i.e. Firefox) or closing it by hitting the X in the upper-right hand corner. Lately, the animation for opening and closing windows (which is simply either growing from the icon from the taskbar to fill the screen, or shrinking from the screen down towards the icon on the toolbar.) This problem also occurs for minimizing/maximizing windows. Very laggy movies: defined as .avi movie files saved to My Documents which skips several frames per second and seemingly slows down the movie as a whole Extremely laggy games: I tried RuneScape today, and movement in the game was at least 10x slower than it ever has been, even when playing on the lowest detail/graphics Desktop taking 3 seconds to fade in after sleep: in this scenario, I had no other programs running visibly. The computer generally fades to black from the password screen to the desktop in about 1 second, normally. However, it is now taking 3 or more seconds.

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  • Print over the internet from a remote linux session locally (on a Windows 7 machine) to the shared printers?

    - by obeliksz
    I'm trying to use a linux virtual machine as a file server for windows clients. I have successfully implemented remote file sharing (samba+ssh) with which I am able to print locally with a little program that I made for this purpose (jetforms style)... but I would like to hear about a somewhat more direct approach. How can I attach the printers to the server, so that I can for example open a file on the remote session and in the print dialogbox I would see my local printers (on the machine from which I have established a remote session)? I guess there should be some kind of putty tunneling, but dont know how. I have a windows 7 machine locally; there is a CentOS 6 VM over the internet. It has ssh, cups, and samba. I have found a question which asks the opposite: there is a windows based server to connect form linux but that windows has a domain, mine is just a simple windows workstation that is behind NAT and has a dynamic IP. That question is: Print from Linux to Windows networked printer.

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  • Windows 7 just deleted 4 days of work

    - by Mat
    Hey! I'm just a bit about to freak out. I just finished a project and rebooted my computer. It didn't want to boot anymore so I had to use the Windows 7 system repair option. It ran for a minute and then booted up. Now most of my source code from the last 4 days of work is gone! Background: sometimes (most often after installing new software) my notebook won't boot up anymore. It will just show the little Windows 7 flag, but not read from the hard disk anymore. If I hard-abort and reboot then, it asks me whether to start Windows normally (which won't work) or to run "Windows startup repair". If I run it, it does some stuff for about two or three minutes and then I can boot Windows again. Usually after this, .exe files I added to the computer during previous days are gone - but other files so far were not touched. But now, after this happened, a whole bunch of ".as" (ActionScript source files) from my project are gone! Does anyone know where and whether there's a way to recover them?

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  • Reasons for Ajax navigation breaking on Coldfusion/Apache when running an app in iOS fullscreen mode? [closed]

    - by frequent
    Not sure if this belongs to SO or here. I'm running a webApp using jquery, jquerymobile, requireJS and apache, coldfusion8, mysql 5.0.88 serverside. The app works fine until I try to run it in fullscreen mode on iOS (add icon to homescreen, launch app from there with <meta name="apple-mobile-web-app-capable" content="yes" /> specified). This meta tag will break the Jquery Mobile AJAX navigation. The AJAX request will fail and the requested page will be loaded as a new page, thereby restarting the app on every page change. I have chased this through the whole front end starting from requireJS through Jquery Mobiles AJAX navigation down to the AJAX request being made in Jquery. xhr.send( ( s.hasContent && s.data ) || null ); In regular browser this works no problem. In fullscreen mode, this fails (readystate=0, empty response). I have found this article, which argues that fullscreen mode is like a browser instance with different HTTP strings. On ASP.net this results in the browser not being identified by the server and only basic browser settings being assumed (e.g. no Javascript). I'm a little lost where to start looking for possible reasons serverside. I have not written any server code for handling Ajax page navigation, so this must be something that is handled out of the box by Coldfusion or Apache? Question: Where could I start looking for problable causes of fullscreen mode breaking AJAX navigation if I assume Coldfusion or Apache are the culprits? Is there a setting I'm missing in httpd.config? What else could be the problem? Thanks for inputs!

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  • Messages don’t always appear in Mail.app

    - by MikeHoss
    I asked this question on serverfault, but it was correctly suggested that superuser is better -- and I agree: My wife and I share a Mac and use different accounts. We both use Apple's standard Mail.app. We can also get to our email accounts via SquirrelMail that our webhost provides. Both SquirrelMail and Mail.app are connecting via IMAP. My wife was the first to notice that not all messages were getting to the Mail.app. She would check the Mac (our main machine) and then a little while later check mail from another machine via SquirrelMail and see messages there that should have been on the Mac. She would go back and those messages would never show up. Lately, I have been seeing the same thing, though less often. I can't reproduce it, or just look at a message to see if they haven't been moved over. I've looked in Junk, etc. and the Mac simply never sees those messages via IMAP. Does anyone have a guess to something I could poke around at?

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  • Why would the Apache parent process restart silently?

    - by miracle
    I run apache 2.2.9 with mpm prefork on debian lenny. Following http://httpd.apache.org/docs/2.2/mod/prefork.html, I would expect that there is one parent process, running as root and listening as configured, which would start child processes as defined by the Min/Max/etc. directives. I expect the children to be restarted as per MaxRequestsPerChild, but the parent process to stay put with one process id until I restart it manually. Out of a little paranoia, I started monitoring listening ports including process ids. I have a cron job every 20 minutes to run netstat -ap | grep LISTEN and diff the output. Sometimes (about once per day) I see a series of this: 8c8 < tcp6 0 0 [::]:www [::]:* LISTEN 6194/apache2 --- tcp6 0 0 [::]:www [::]:* LISTEN 6607/apache2 10c10 < tcp6 0 0 [::]:https [::]:* LISTEN 6194/apache2 --- tcp6 0 0 [::]:https [::]:* LISTEN 6607/apache2 Over a period of an hour or three, the parent would change its pid at least once every 20 minutes, without any explanation in the log files or any other hint that anything is going wrong. This is not what I expected. What am I missing?

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  • How to boost playback volume in real time on media recorded with a very low volume.

    - by L Marksman
    I have never heard a satisfactory answer to this often misunderstood question, let me explain. Lets say I have a sound card and earphones/speakers that can play back audio loud enough in most cases. This is great but the problem is that you always find people who do not know how to record audio, from Youtube video's to music. So now you end up with a audio playback that only uses 10% or less of the capacity of your sound hardware, in vista/win 7 you will see this frequently in the mixer with the volume pushed up to max but the green sound level only goes up a millimeter or two. I am looking for (preferably free) software or a method to boost the sound level of any audio from any source in real time to use more of my hardware capacity similar to what VLC media player can do. Oh and please, do not tell me it is impossible. I am not trying to boost the volume past what my hardware is capable of, I am just trying to use my hardware's full capacity. Also please do not tell met to buy new hardware, I know I can use hardware amplification, I don't want to (like many others) spend money on a simple little problem like this. Thanks!

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  • Which Cardbus/PCMCIA -> USB card works with external hard drive?

    - by Carl
    I have an HT-Link Cardbus/PCMCIA USB 2.0 2-port card (NEC / 32-bit). My external hard drive w/USB adapter won't work with it, and it will work plugged directly into a USB port on a different laptop. (My USB ports got fried.) I got the card off E-Bay. My MP3 player works plugged into that card. The drivers for the card say "Known limitations: High Speed Isochronus, USB Composite Devices." (No other details provided.) I don't know if the hard drive adapter is "isochronous" or "composite." I've read there are problems with too little power being supplied to the drive. The cable to the drive has two USB plugs on one end, and it doesn't make any difference if I plug both of them into the Cardbus card. What card should I get? I see many different brands on E-Bay. I need one that supplies sufficient power for an external hard drive, and doesn't have any "known limitations" in the way.

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  • Revoke directory access for a particular user in Solaris

    - by permissiontomars
    I have a need to allow directory access to a particular user on my file system. I want this user to be unable to access any other directory in my file system (initially anyway. It may need access to some directories later). For example: I have a directory called /opt/mydir. - I want my dedicated user to only be able to access this directory, and nothing else. - I want all other users to be able to access this directory as normal. I'm new to Linux and its permissions. I've read a fair bit of background material but I'm a little confused. Is there anyway to revoke permissions to /opt/mydir for a single dedicated user? A possible flawed method would be to only allow access to /opt/mydir and exclude every other user. This won't work because I want all other users to work as normal; accessing the directory. I'm working on Solaris 10. Any suggestions are appreciated.

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  • Monitoring Between EC2 Regions

    - by ABrown
    I'm working on a small EC2 project that involves a handful of servers in two different regions (US East and EU West). My first task is to implement a Nagios monitoring solution. Monitoring within a region is simple - I just use the private domain names/IPs, but I'm a little unsure of the best way to handle monitoring the second region without setting up a second Nagios install. The environment is fairly static, so I'm not going to be scripting the configuration with the EC2 tools just yet. As I see it, I have two options. Two Nagios installations (which is over-kill for the small number of servers I'm dealing with). Pros: I don't have to alter the group permissions nor do I have to pay for the traffic, redundancy in the monitoring solution - I could monitor the Nagios servers. Cons: two installations to deal with and I'd need to run another server instance. Have the single installation monitor both regions. Pros: one installation to deal with. Cons: slightly reduced security - security group will have to have NRPE (5666) opened for one source IP and also paying for a small amount of bandwidth at the Internet rate for data transfer between the regions. I guess my question is - how have others handled this problem and what are your recommendations? Thanks!

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  • Computer Turns on Briefly then right back off again.

    - by goddamnyouryan
    So yesterday I came home from work and went to turn my computer on....it turned on for about 5 seconds then promptly turned right back off again...before I ever saw anything on the screen. I tried again, same result. After several attempts, I've found that the length at which it turns on differs. After trying multiple times in a row, it only stays on for about 3 seconds. If I let it rest for a bit it sometimes will stay on for up to a minute (though it never boots, the screen stays black the whole time). I'm not sure what is causing this issue...I built this computer a little more than 2 years ago and this is the first issue I have ever had with it. I did all the usual checks: -It's not the power switch -The capacitors on the motherboard all seem to be in working order -The PSU seems to be fine as it lights up, fan spins, and will sometimes stay on for about a minute period My hope is that the thermal paste on the cpu has degraded and just needs to be re-applied. Does that seem like a reasonable assumption? I'm going to tear the thing apart and do a minimum system build when I get home, but any heads up as to what I should be looking for would be much appreciated. Any thoughts?

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  • What could be causing windows to fail to sleep or hibernate, and revert system settings?

    - by xdumaine
    I am running Windows 8.1 on my system (Dell e6520) and the symptoms are this: My PC won't sleep or hibernate. It the screen turns off, but the fans just run and run, and after a little while, it completely shuts down, and when I start it back up, everything is closed, like it was a fresh boot/restart. I'm have a weird issue with outlook described here and the fix works fine - modifying a registry value. The weirder part is that after my computer fails to sleep or hibernate, and it starts back up, the registry value is GONE, like I never modified it, and thus the outlook error message is back. I thought maybe a graphics driver was preventing the sleep/hibernate, so I attempted to uninstall the NVIDIA graphics driver and control panel. HOWEVER, once the computer fails to sleep/hibernate, the NVIDIA graphics driver and control panel appear BACK on my system, like I didn't uninstall them. What could be happening here? I really need to be able to sleep/hibernate so I don't lose work or my work state, and these issues are really concerning. What I've tried, without success: Uninstalling graphics driver mentioned above Disabling hibernate and using sleep disabling/re-enabling hibernate Disabling startup items Sleeping as local system admin account disconnecting all USB, network, and bluetooth devices

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  • Java process eating CPU; Why?

    - by Camran
    I have a Linux server which I have installed Java on. Sometimes, and only sometimes when a large nr of visitors visit my website, the site hangs. When I open the terminal and enter the "top" command to see whats going on, I can see that "Java" process is eating CPU! Like 400%. I have also tried ps aux command, and can see that the command is from usr/bin/java I have little experience in troubleshooting this kind of things, so I turn to you guys for help. I have a java container installed (Jetty) which I must have in order to use SOLR (search engine) which is integrated into my website. I can start and stop SOLR by: etc/init.d/solr stop But this didn't remove the java process from the "Top" command. Still java was eating 400% CPU. Is there other methods to restart java only? This has happened twice to me, and each time I have now restarted my entire servers and everithing is fine. If you need more input let me know! Thanks

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  • Need recommendation: which USB card (PCMCIA) works with external hard drive?

    - by Carl
    I have an HT-Link Cardbus/PCMCIA USB 2.0 2-port card (NEC / 32-bit). My external hard drive w/USB adapter won't work with it, and it will work plugged directly into a USB port on a different laptop. (My USB ports got fried.) I got the card off E-Bay. My MP3 player works plugged into that card. The drivers for the card say "Known limitations: High Speed Isochronus, USB Composite Devices." (No other details provided.) I don't know if the hard drive adapter is "isochronous" or "composite." I've read there are problems with too little power being supplied to the drive. The cable to the drive has two USB plugs on one end, and it doesn't make any difference if I plug both of them into the Cardbus card. What card should I get? I see many different brands on E-Bay. I need one that supplies sufficient power for an external hard drive, and doesn't have any "known limitations" in the way.

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  • Dataform fields won't appear

    - by dsetton
    Hello! I am trying to learn how to use the Silverlight 3 DataForm control, because I need to define the DataForm fields myself in the XAML code, that is, I don't want to use the AutoGenerateFields property. My problem is: the dataform works perfectly when the AutoGenerateFields is set to true, but when I create a DataForm and set the fields manually and run the application, all I get is an empty blank rectangle where my form and its fields should be. I created a blank Silverligh Navigation Application to test this, and below is the code of the Home.xaml page: <Grid x:Name="LayoutRoot"> <StackPanel> <!-- This doesn't work. It renders a blank rectangle --> <dataFormToolkit:DataForm x:Name="DataForm"> <dataFormToolkit:DataForm.EditTemplate> <DataTemplate> <StackPanel dataFormToolkit:DataField.IsFieldGroup="True"> <dataFormToolkit:DataField> <TextBox Text="Test1" /> </dataFormToolkit:DataField> <dataFormToolkit:DataField> <TextBox Text="Test2" /> </dataFormToolkit:DataField> <dataFormToolkit:DataField> <TextBox Text="Test3" /> </dataFormToolkit:DataField> </StackPanel> </DataTemplate> </dataFormToolkit:DataForm.EditTemplate> </dataFormToolkit:DataForm> <!-- This works. --> <dataFormToolkit:DataForm x:Name="DataForm2"/> </StackPanel> </Grid> To make the second DataForm work, I simply created a Person class, and put the following in Home.xaml.cs: protected override void OnNavigatedTo(NavigationEventArgs e) { Person client = new Person { Age = 10, DateOfBirth = new DateTime(1980, 10, 20), FirstName = "John", LastName = "Doe" }; DataForm2.CurrentItem = client; } You can see what happens when I run the application in the following link: http://dl.dropbox.com/u/1946004/image.PNG (I don't have enough points to post images, so...) Does anyone know what's wrong? Thank you in advance.

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  • Benchmark Linq2SQL, Subsonic2, Subsonic3 - Any other ideas to make them faster ?

    - by Aristos
    I am working with Subsonic 2 more than 3 years now... After Linq appears and then Subsonic 3, I start thinking about moving to the new Linq futures that are connected to sql. I must say that I start move and port my subsonic 2 with SubSonic 3, and very soon I discover that the speed was so slow thats I didn't believe it - and starts all that tests. Then I test Linq2Sql and see also a delay - compare it with Subsonic 2. My question here is, especial for the linq2sql, and the up-coming dotnet version 4, what else can I do to speed it up ? What else on linq2sql settings, or classes, not on this code that I have used for my messures I place here the project that I make the tests, also the screen shots of the results. How I make the tests - and the accurate of my measures. I use only for my question Google chrome, because its difficult for me to show here a lot of other measures that I have done with more complex programs. This is the most simple one, I just measure the Data Read. How can I prove that. I make a simple Thread.Sleep(10 seconds) and see if I see that 10 seconds on Google Chrome Measure, and yes I see it. here are more test with this Sleep thead to see whats actually Chrome gives. 10 seconds delay 100 ms delay Zero delay There is only a small 15ms thats get on messure, is so small compare it with the rest of my tests that I do not care about. So what I measure I measure just the data read via each method - did not count the data or database delay, or any disk read or anything like that. Later on the image with the result I show that no disk activity exist on the measures See this image to see what really I measure and if this is correct Why I chose this kind of test Its simple, it's real, and it's near my real problem that I found the delay of subsonic 3 in real program with real data. Now lets tests the dals Start by see this image I have 4-5 calls on every method, the one after the other. The results are. For a loop of 100 times, ask for 5 Rows, one not exist, approximatively.. Simple adonet:81ms SubSonic 2 :210ms linq2sql :1.70sec linq2sql using CompiledQuery.Compile :239ms Subsonic 3 :15.00sec (wow - extreme slow) The project http://www.planethost.gr/DalSpeedTests.rar Can any one confirm this benchmark, or make any optimizations to help me out ? Other tests Some one publish here this link http://ormbattle.net/ (and then remove it - don not know why) In this page you can find a really useful advanced tests for all, except subsonic 2 and subsonic 3 that I have here ! Optimizing What I really ask here is if some one can now any trick how to optimize the DALs, not by changing the test code, but by changing the code and the settings on each dal. For example... Optimizing Linq2SQL I start search how to optimize Linq2sql and found this article, and maybe more exist. Finally I make the tricks from that page to run, and optimize the code using them all. The speed was near 1.50sec from 1.70.... big improvement, but still slow. Then I found a different way - same idea article, and wow ! the speed is blow up. Using this trick with CompiledQuery.Compile, the time from 1.5sec is now 239ms. Here is the code for the precompiled... Func<DataClassesDataContext, int, IQueryable<Product>> compiledQuery = CompiledQuery.Compile((DataClassesDataContext meta, int IdToFind) => (from myData in meta.Products where myData.ProductID.Equals(IdToFind) select myData)); StringBuilder Test = new StringBuilder(); int[] MiaSeira = { 5, 6, 10, 100, 7 }; using (DataClassesDataContext context = new DataClassesDataContext()) { context.ObjectTrackingEnabled = false; for (int i = 0; i < 100; i++) { foreach (int EnaID in MiaSeira) { var oFindThat2P = compiledQuery(context, EnaID); foreach (Product One in oFindThat2P) { Test.Append("<br />"); Test.Append(One.ProductName); } } } } Optimizing SubSonic 3 and problems I make many performance profiling, and start change the one after the other and the speed is better but still too slow. I post them on subsonic group but they ignore the problem, they say that everything is fast... Here is some capture of my profiling and delay points inside subsonic source code I have end up that subsonic3 make more call on the structure of the database rather than on data itself. Needs to reconsider the hole way of asking for data, and follow the subsonic2 idea if this is possible. Try to make precompile to subsonic 3 like I did in linq2Sql but fail for the moment... Optimizing SubSonic 2 After I discover that subsonic 3 is extreme slow, I start my checks on subsonic 2 - that I have never done before believing that is fast. (and it is) So its come up with some points that can be faster. For example there are many loops like this ones that actually is slow because of string manipulation and compares inside the loop. I must say to you that this code called million of times ! on a period of few minutes ! of data asking from the program. On small amount of tables and small fields maybe this is not a big think for some people, but on large amount of tables, the delay is even more. So I decide and optimize the subsonic 2 by my self, by replacing the string compares, with number compares! Simple. I do that almost on every point that profiler say that is slow. I change also all small points that can be even a little faster, and disable some not so used thinks. The results, 5% faster on NorthWind database, near 20% faster on my database with 250 tables. That is count with 500ms less in 10 seconds process on northwind, 100ms faster on my database on 500ms process time. I do not have captures to show you for that because I have made them with different code, different time, and track them down on paper. Anyway this is my story and my question on all that, what else do you know to make them even faster... For this measures I have use Subsonic 2.2 optimized by me, Subsonic 3.0.0.3 a little optimized by me, and Dot.Net 3.5

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  • Using XMLDecoder to cast Encoded XML to List<>

    - by Ender
    I am writing an application that reads in a large number of basic user details in the following format; once read in it then allows the user to search for a user's details using their email: NAME ROLE EMAIL --------------------------------------------------- Joe Bloggs Manager [email protected] John Smith Consultant [email protected] Alan Wright Tester [email protected] ... The problem I am suffering is that I need to store a large number of details of all people that have worked at the company. The file containing these details will be written on a yearly basis simply for reporting purposes, but the program will need to be able to access these details quickly. The way I aim to access these files is to have a program that asks the user for the name of the unique email of the member of staff and for the program to then return the name and the role from that line of the file. I've played around with text files, but am struggling with how I would handle multiple columns of data when it comes to searching this large file. What is the best format to store such data in? A text file? XML? The size doesn't bother me, but I'd like to be able to search it as quickly as possible. The file will need to contain a lot of entries, probably over the 10K mark over time. EDIT: I've decided to go with the XML serialisation method. I've managed to get the code for Encoding working perfectly, but the Decoding code below does not work. XMLDecoder d = new XMLDecoder( new BufferedInputStream(new FileInputStream("data.xml"))); List<Employee> list = (List<Employee>) d.readObject(); d.close(); for(Employee x : list) { if(x.getEmail().equals(userInput)) { // do stuff } } When the program hits List<Employee> list = (List<Employee>) d.readObject(); an exception is thrown claiming that "Employee cannot be cast to java.util.List". I've added a bounty to this and anyone that can help me solve this problem once and for all will get lots of lovely points. EDIT 2: I've looked a bit more into the problem and have come across Serialization as a potential answer. If anyone can look into this for me as I've no experience with Serialization or Deserialization I'd be very grateful. It can provide an Object with no problems whatsoever, but I really need to return it in the same format as it went in (List). EDIT 3: Ugh, this problem is really starting to drive me crazy and to be honest I'm starting to think that it's an unsolvable problem. If possible, could someone take a look at the code and help provide a solution for me?

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  • Scale background image to wrap content of layout

    - by bjg222
    I have a layout that contains some text fields and has a background image that's displayed at the top of my activity. I'd like the background image to scale to wrap the content (don't care about aspect ratio). However, the image is larger than content, so the layout instead wraps the background image. Here's my original code: <RelativeLayout android:layout_width="fill_parent" android:id="@+id/HeaderList" android:layout_gravity="top" android:layout_height="wrap_content" android:background="@drawable/header"> <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:id="@+id/NameText" android:text="Jhn Doe" android:textColor="#FFFFFF" android:textSize="30sp" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:paddingLeft="4dp" android:paddingTop="4dp" /> <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:textColor="#FFFFFF" android:layout_alignParentLeft="true" android:id="@+id/HoursText" android:text="170 hours" android:textSize="23sp" android:layout_below="@+id/NameText" android:paddingLeft="4dp" /> </RelativeLayout> After searching through some other questions, I found these two: How to wrap content views rather than background drawable? Scale a Drawable or background image? Based on this, I created a FrameLayout w/ an ImageView showing the background. Unfortunately, I still can't get it to work. I want the height of the background image to shrink/expand w/ the size of the text views, but with the FrameLayout, the ImageView fits to the size of it's parent, and I can't find a way to make the parent fit to the size the text view layout. Here's my updated code: <FrameLayout android:layout_width="fill_parent" android:layout_height="wrap_content" > <ImageView android:src="@drawable/header" android:layout_width="fill_parent" android:scaleType="fitXY" android:layout_height="fill_parent" /> <RelativeLayout android:layout_width="fill_parent" android:id="@+id/HeaderList" android:layout_gravity="top" android:layout_height="wrap_content" > <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:id="@+id/NameText" android:text="John Doe" android:textColor="#FFFFFF" android:textSize="30sp" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:paddingLeft="4dp" android:paddingTop="4dp" /> <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:textColor="#FFFFFF" android:layout_alignParentLeft="true" android:id="@+id/HoursText" android:text="170 hours" android:textSize="23sp" android:layout_below="@+id/NameText" android:paddingLeft="4dp" /> </RelativeLayout> </FrameLayout> Does anybody have any suggestions for how best to make an image scale to the size of the contents of some layout? I'm not concerned with the aspect ratio of the image, as it won't matter, I just want it to fill the background. Thanks!

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  • Would anyone tell me how to fetch the media:thumb element's attribute from a json feed?

    - by ash
    I made a yahoo pipe that pulls up the atoms as json format; however, I can fetch and display all the elements in my html page except for the element's attribute. Would anyone tell me how to fetch the media:thumb element's attribute from a json feed? I am pasting the html page's code with javascript. If you save the html page and then view it in browser, you will see that all the necessary elements get output at html page except for the media:thumb as I cannot display the attribute of media:thumb when the feed is formatted as json. I am also pasting the some portion of the json feed so that you can have an idea what i am talking about. Please tell me how to retrieve attribute from media:thumb element of a json feed by using plain javascript but no server side code or javascript library. Thank you. function getFeed(feed){ var newScript = document.createElement('script'); newScript.type = 'text/javascript'; newScript.src = 'http://pipes.yahoo.com/pipes/pipe.run?_id=40616620df99780bceb3fe923cecd216&_render=json&_callback=piper'; document.getElementsByTagName("head")[0].appendChild(newScript); } function piper(feed){ var tmp=''; for (var i=0; i'; tmp+=feed.value.items[i].title+''; tmp+=feed.value.items[i].author.name+''; tmp+=feed.value.items[i].published+''; if (feed.value.items[i].description) { tmp+=feed.value.items[i].description+''; } tmp+='<hr>'; } document.getElementById('rssLayer').innerHTML=tmp; } </script> bchnbc .............................................................. Some portion of the json feed that gets generated by yahoo pipe .............................................................. piper({"count":2,"value":{"title":"myPipe","description":"Pipes Output","link":"http:\/\/pipes.yahoo.com\/pipes\/pipe.info?_id=f7f4175d493cf1171aecbd3268fea5ee","pubDate":"Fri, 02 Apr 2010 17:59:22 -0700","generator":"http:\/\/pipes.yahoo.com\/pipes\/","callback":"piper", "items": [{ "rights":"Attribution - Noncommercial - No Derivative Works", "link":"http:\/\/vodo.net\/mixtape1", "y:id":{"value":null,"permalink":"true"}, "content":{"content":"We're proud to be releasing this first VODO MIXTAPE. Actual tape might be a thing of the past, but before P2P, mixtapes were the most popular way of sharing popular culture the world had known -- and once called the 'most widely practiced American art form'. We want to resuscitate the spirit of the mixtape for this VODO MIXTAPE series: compilations of our favourite shorts, the weird, the wild and the wonky, all brought together in a temporary and uncomfortable company.","type":"text"}, "author": {"name":"Various"}, "description":"We're proud to be releasing this first VODO MIXTAPE. Actual tape might be a thing of the past, but before P2P, mixtapes were the most popular way of sharing popular culture the world had known -- and once called the 'most widely practiced American art form'. We want to resuscitate the spirit of the mixtape for this VODO MIXTAPE series: compilations of our favourite shorts, the weird, the wild and the wonky, all brought together in a temporary and uncomfortable company.", "media:thumbnail": { "url":"http:\/\/vodo.net\/\/thumbnails\/Mixtape1.jpg" }, "published":"2010-03-08-09:20:20 PM", "format": { "audio_bitrate":null, "width":"608", "xmlns":"http:\/\/xmlns.transmission.cc\/FileFormat", "channels":"2", "samplerate":"44100.0", "duration":"3092.36", "height":"352", "size":"733925376.0", "framerate":"25.0", "audio_codec":"mp3", "video_bitrate":"1898.0", "video_codec":"XVID", "pixel_aspect_ratio":"16:9" }, "y:title":"Mixtape #1: VODO's favourite short films", "title":"Mixtape #1: VODO's favourite short films", "id":null, "pubDate":"2010-03-08-09:20:20 PM", "y:published":{"hour":"3","timezone":"UTC","second":"0","month":"4","minute":"10","utime":"1270264200","day":"3","day_of_week":"6","year":"2010" }}, {"rights":"Attribution - Noncommercial - No Derivative Works","link":"http:\/\/vodo.net\/gilbert","y:id":{"value":"cd6584e06ea4ce7fcd34172f4bbd919e295f8680","permalink":"true"},"content":{"content":"A documentary short about Gilbert, the Beacon Hill \"town crier.\" For the last 9 years, since losing his job and becoming homeless, Gilbert has delivered the weather, sports, and breaking headlines from his spot on the Boston Common. Music (used with permission) in this piece is called \"Blue Bicycle\" by Dusseldorf-based pianist \/ composer Volker Bertelmann also known as Hauschka. Artistic Statement: This is the first in a series of profiles of people who I think are interesting, and who I see on almost a daily basis. I don't want to limit the series to people who live \"on the fringe,\" but it would be appropriate to say that most of the people I interview are eclectic, eccentric, and just a little bit unique. The art is in the viewing - but I hope to turn my lens on individuals that don't always color in the lines, whether they can help it or not.","type":"text"},"author":{"name":"Nathaniel Hansen"},"description":"A documentary short about Gilbert, the Beacon Hill \"town crier.\" For the last 9 years, since losing his job and becoming homeless, Gilbert has delivered the weather, sports, and breaking headlines from his spot on the Boston Common. Music (used with permission) in this piece is called \"Blue Bicycle\" by Dusseldorf-based pianist \/ composer Volker Bertelmann also known as Hauschka. Artistic Statement: This is the first in a series of profiles of people who I think are interesting, and who I see on almost a daily basis. I don't want to limit the series to people who live \"on the fringe,\" but it would be appropriate to say that most of the people I interview are eclectic, eccentric, and just a little bit unique. The art is in the viewing - but I hope to turn my lens on individuals that don't always color in the lines, whether they can help it or not.","media:thumbnail":{"url":"http:\/\/vodo.net\/\/thumbnails\/gilbert.jpeg"},"published":"2010-03-03-10:37:05 AM","format":{"audio_bitrate":null,"width":"624","xmlns":"http:\/\/xmlns.transmission.cc\/FileFormat","channels":"2","samplerate":null,"duration":"373.673","height":"352","size":"123321266.0","framerate":null,"audio_codec":"mp3","video_bitrate":null,"video_codec":"XVID","pixel_aspect_ratio":"16:9"},"y:title":"Gilbert","title":"Gilbert","id":"cd6584e06ea4ce7fcd34172f4bbd919e295f8680","pubDate":"2010-03-03-10:37:05 AM","y:published":{"hour":"3","timezone":"UTC","second":"0","month":"4","minute":"10","utime":"1270264200","day":"3","day_of_week":"6","year":"2010" }} ] }})

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