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  • What lasts longer: Data stored on non-volatile flash RAM, optical media, or magnetic disk?

    - by Chris W. Rea
    What lasts longer: Data stored on non-volatile flash RAM (USB stick or SD cards?), optical media (CD, DVD, or Blu-Ray?), or magnetic disk (floppies, hard drives?) My gut tells me optical media, but I'm not sure. Furthermore, which of those digital media would be most suitable for long-term data storage where environmental issues are unknown, such as low/high temperature or humidity? For example, what digital media could be stored in a basement, attic, or time capsule, and be expected to survive a reasonably long time? e.g. a lifetime, and then some. Update: Looks like optical media and magnetic tape each have one vote below. Does anybody else have an opinion or know of a study comparing the two?

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  • Planning to buy a server with at least 48GB Ram, are the blades way to go?

    - by varchar1
    We're planning to host our website for the first time for ourselves. We have currently have a linode of 8 gigs and the memory is going up to 90% most of the time. So I want to move my website to my own server with huge RAM. So this will be first time to manage any physical hardware of a server. So I came across IBM's BladeCenter, found them interesting. So can I just buy the blade and run it? Or do I have to buy the chassis for sure? Also, do I need to buy an UPS? So how hard is it to setup? How about the hard drives? Can I setup them easily? Please advice.

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  • Calculating RAM Performance? Example: DDR3-2133 CL9-11-10-28 1.65V vs DDR3-1600 CL10-10-10-30 1.5V

    - by user1131467
    How do you calculate the relative performance of PC RAM? For example, what is the relative performance of the following: G.Skill Ripjaws Z 8 x 4GB Kit, DDR3-2133, [email protected] G.Skill Ripjaws Z 4 x 8GB Kit, DDR3-1600, [email protected] If it's relevant, when they are used in a top of the line ASUS Rampage IV Extreme motherboard and Intel i7 3960X? By performance, I mean relative: read latency write latency read bandwidth write bandwidth Please include working. (I mean how did you arrive at the figures based on timing and DDR3-speed)

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  • Lenovo ThinkServer TS130 1105 - does 32/64 depend on RAM?

    - by Ecnerwal
    Just got in a Lenovo ThinkServer TS130 1105 (Xeon E3-1225V1) and a (new, sealed, holographed, looks legit) copy of Windows Server 2008 32/64 (standard) to run on it for a pretty lightweight job (currently handled, adequately, by a terrifyingly old Optima P4 running Windows 2000 server - really lightweight, but long-past-due for replacement, without any particular need or excuse for server 2012...) The 64 bit disc sits there and does nothing. The 32 bit disc boots. I haven't spotted any mention of this in the TS130 Manual (I have now combed it, and find no mention of a need to populate in pairs - a preferred order to populate in, yes, but no mention of pairs being required) but I begin to wonder if it's due to the fact that the 4GB RAM suppled with it was a single DIMM, rather than a pair. Better for upgrading, but perhaps requiring an upgrade (or sidegrade) right away to install the x64 version?? Anyone know? I tried the 64-bit DVD on a desktop with an AMD Athlon II X4 635 processor which normally runs Windows7 in 64 bit, and it booted up just fine.

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  • How do I take some RAM and use it towards Dedicated video memory for my Nvidia graphics card?

    - by Noah Rainey
    I have a Nividia GeForce 6150SE nForce 430 graphics card (so it's quite old), it only gets 64MB of dedicated memory by default. I went into the bios and see if I can increase it, but it wouldn't let me. However, from the Nividia control panel I see I have up to 1071MB of total available graphics memory. I'm not sure what that means and I'm not sure how I can harness this memory and use some RAM for my graphics card. Can someone explain if this is possible and if so, how?

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  • what is the best setting for using lighttpd on 8G ram?

    - by user39639
    I have running 8GB ram and 8 x Xeon 3361 system! What is the best setting for running simultaneous connection! What is the maximum? Is setting like this correct? server.max-keep-alive-requests = 0 server.max-keep-alive-idle = 10 server.max-read-idle = 60 server.max-write-idle = 60 server.event-handler = "linux-sysepoll" server.max-fds = 2048 fastcgi.server = ( ".php" = ( "localhost" = ( "socket" = "/tmp/php-fastcgi.socket", "bin-path" = "/usr/bin/php-cgi", "max-procs" = 20, "bin-environment" = ( "PHP_FCGI_CHILDREN" = "40", "PHP_FCGI_MAX_REQUESTS" = "800" ), "broken-scriptfilename" = "enable" ) ) ) please help me!

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  • Will adding extra RAM in my computer speed it up?

    - by Harry Simpson
    I have a 5 year old Dell Inspiron 530 desktop computer which is slowly grinding to a halt. Someone told me if i put extra RAM in itll speed it up. Inside the computer there are four slots for memory but only two has memory in them and they are 1GB each. if i bought another 2no. 1GB and put them in the free slots would it speed the computer up (would it be twice as fast?) and is it as simple as just putting them in or is there other things i need to do?

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  • Mystery process crashing machine by using all of the RAM - how to identify?

    - by wd40
    I have a Linux machine which runs ~10 in house written processes. Every other day(!) the machine completely runs out of RAM, goes into swap and becomes unresponsive. This happens quickly over a period of a couple of seconds, so it's not feasible to sit watching the machine until it dies. It's a sudden leak, not a gradual one, so top(1) doesn't give any indications something bad may about to happen. What is the best way of identifying which process(es) are causing the trouble?

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  • SQL Monitor Performance Metric: Buffer Cache Used Per Database in MB

    Data pages read from disk are placed in the buffer pool with the intention that they will be reused, and accessing them from RAM is faster than from disk. Knowing how much of your RAM is committed to each database can help you provision the right amount of RAM to SQL Server, and also to identify rogue queries that draw too much data into RAM and force data from other databases out of the cache. Deployment Manager 2 is now free!The new version includes tons of new features and we've launched a completely free Starter Edition! Get Deployment Manager here

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  • Problems with Windows Server 2012 Hyper-V

    - by user3438673
    I install a windows server 2012 R2 and then install a virtual machine on hyper-v. When i configure the virtual machine in hyper-v i configure 4gb of ram then few days later y change it to 12gb of Ram Problem the problem is when i change the ram the virtual machine star working slower and i have to return the 4gb of ram. i cretae a new virtual machine and i configure the virtual machine with 12gb of ram from start but still working to slow do you know how to solve this problem in hyper-v?

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  • How to figure out how much RAM each prefork thread requires for maximum Wordpress performance on an EC2 small instance

    - by two7s_clash
    Just read Making WordPress Stable on EC2-Micro In the "Tuning Apache" section, I can't quite figure out how he comes up with his numbers for his prefork config. He explains how to get the numbers for an average process, which I get. But then: Or roughly 53MB per process...In this case, ten threads should be safe. This means that if we receive more than ten simultaneous requests, the other requests will be queued until a worker thread is available. In order to maximize performance, we will also configure the system to have this number of threads available all of the time. From 53MB per process, with 613MB of RAM, he somehow gets this config, which I don't get: <IfModule prefork.c> StartServers 10 MinSpareServers 10 MaxSpareServers 10 MaxClients 10 MaxRequestsPerChild 4000 </IfModule> How exactly does he get this from 53MB per process, with 613MB limit? Bonus question From the below, on a small instance (1.7 GB memory), what would good settings be? bitnami@ip-10-203-39-166:~$ ps xav |grep httpd 1411 ? Ss 0:00 2 0 114928 15436 0.8 /opt/bitnami/apache2/bin/httpd -f /opt/bitnami/apache2/conf/httpd.conf 1415 ? S 0:06 10 0 125860 55900 3.1 /opt/bitnami/apache2/bin/httpd -f /opt/bitnami/apache2/conf/httpd.conf 1426 ? S 0:08 19 0 127000 62996 3.5 /opt/bitnami/apache2/bin/httpd -f /opt/bitnami/apache2/conf/httpd.conf 1446 ? S 0:05 48 0 131932 72792 4.1 /opt/bitnami/apache2/bin/httpd -f /opt/bitnami/apache2/conf/httpd.conf 1513 ? S 0:05 7 0 125672 54840 3.1 /opt/bitnami/apache2/bin/httpd -f /opt/bitnami/apache2/conf/httpd.conf 1516 ? S 0:02 2 0 125228 48680 2.7 /opt/bitnami/apache2/bin/httpd -f /opt/bitnami/apache2/conf/httpd.conf 1517 ? S 0:06 2 0 127004 55796 3.1 /opt/bitnami/apache2/bin/httpd -f /opt/bitnami/apache2/conf/httpd.conf 1518 ? S 0:03 1 0 127196 54208 3.0 /opt/bitnami/apache2/bin/httpd -f /opt/bitnami/apache2/conf/httpd.conf 1531 ? R 0:04 0 0 127500 54236 3.0 /opt/bitnami/apache2/bin/httpd -f /opt/bitnami/apache2/conf/httpd.conf

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  • Win 7 64 with 8 gig of ram, getting running low on memory errors.

    - by John
    I have a new Dell laptop running Win7 64 with 8 meg of ram. If I leave the system running overnight I start getting low memory errors the next day. Looking at task manager it shows 6.27 gig used but looking at the processes list the totals don't show nearly that much. I am showing all processes from all users. I have also looked at the processes with PRocess Explorer and see the same results. Using resource monitor I see 4165 MB in Use, 2328 MB Modified and 1352MB Standby with only about 345 MB free. These numbers don't seem to add up to what I have running. I have Visual Studio 2010 running along with a number of IE8 sessions. I have run the same set of apps with XP SP2 32 bit with 4 gig of memory and never had this sort of problem. What is Modified memory? What is Standby memory? Any suggestions on what might be the issue and what might be a fix? TIA J

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  • Adding more RAM at different speeds? Will it impact performance as much as to make it worse than without adding it?

    - by user1676874
    I got a new laptop with 4GBs of ram, expandable to 8GBs. It has 1 4GB stick DDR3 PC3-12800 at 1600Mhz. I can't seem to find another one exactly the same locally, the closest I've found is 1 4GB stick DDR3 PC3-10600 at 1333Mhz. So my question is, I know they will both run at the slowest speed, so even if I have more available RAM it will become slower. Is the performance loss big enough to make the upgrade not worth the hassle?

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  • Commited memory goes to physical RAM or reserves space in the paging file?

    - by Sil
    When I do VirtualAlloc with MEM_COMMIT this "Allocates physical storage in memory or in the paging file on disk for the specified reserved memory pages" (quote from MSDN article http://msdn.microsoft.com/en-us/library/aa366887%28VS.85%29.aspx). All is fine up until now BUT: the description of Commited Bytes Counter says that "Committed memory is the physical memory which has space reserved on the disk paging file(s)." I also read "Windows via C/C++ 5th edition" and this book says that commiting memory means reserving space in the page file.... The last two cases don't make sense to me... If you commit memory, doesn't that mean that you commit to physical storage (RAM)? The page file being there for swaping out currently unused pages of memory in case memory gets low. The book says that when you commit memory you actually reserve space in the paging file. If this were true than that would mean that for a committed page there is space reserved in the paging file and a page frame in physical in memory... So twice as much space is needed ?! Isn't the page file's purpose to make the total physical memory larger than it actually is? If I have a 1G of RAM with a 1G page file = 2G of usable "physical memory"(the book also states this but right after that it says what I discribed at point 2). What am I missing? Thanks.

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  • Is it possible to load an entire SQL Server CE database into RAM?

    - by DanM
    I'm using LinqToSql to query a small SQL Server CE database. I've noticed that any operations involving sub-properties are disappointingly slow. For example, if I have a Customer table that is referenced by an Order table via a foreign key, LinqToSql will automatically create an EntitySet<Order> property. This is a nice convenience, allowing me to do things like Customer.Order.Where(o => o.ProductName = "Stopwatch"), but for some reason, SQL Server CE hangs up pretty bad when I try to do stuff like this. One of my queries, which isn't really that complicated takes 3-4 seconds to complete. I can get the speed up to acceptable, even fast, if I just grab the two tables individually and convert them to List<Customer> and List<Order>, then join then manually with my own query, but this is throwing out a lot of the appeal of LinqToSql. So, I'm wondering if I can somehow get the whole database into RAM and just query that way, then occasionally save it. Is this possible? How? If not, is there anything else I can do to boost the performance? Note: My database in its initial state is about 250K and I don't expect it to grow to more than 1-2Mb. So, loading the data into RAM certainly wouldn't be a problem from a memory point of view.

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  • Using UNION in a query with PHP [migrated]

    - by work
    I have an SQL query which links 3 tables using UNION: $sql ="(SELECT Drive.DriveID,Ram.Memory from Drive,Ram where Drive.DriveID = Ram.RamID) UNION (SELECT Drive.DriveID,External.Memory from Drive, External where Drive.DriveID = External.ExtID)"; Suppose I want to get Ram.Name as well. How do I do this? If I use Ram.Name in the first SELECT statement it would not produce the correct result. Any method for tackling this? I want to do it using UNION.

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  • C# or C++ game: many 16 color images loaded into RAM. Efficient solution?

    - by user560639
    I am in the planning stages of creating a fighting game and am unsure how to handle one issue relating to memory. Background info: - Still debating whether to use C# (XNA) or C++. We do not want to commit to either until we have explored how to solve this problem in both languages. - Using a max of 256MB RAM would be great if possible. - Two characters will be present at a time, and these characters can only change between battles. There is time to load/free memory between battles, but the game needs to run at a constant 60 drawn frames per second during combat. Each frame is 16.67ms - The total number of images per character is in the low hundreds. Each image is roughly 200x400 pixels. Only one image from each character will be displayed at any given moment. Uncompressed, each image takes roughly 300kb from my calculations; upwards of 100MB for a whole character. This is pushing too close to the 256MB limit given that memory will be needed for some other resources as well. Since each image can be made with a total of 16 colors. Theoretically I should be able to use 1/8th the space if I can take advantage of this. I've looked around but haven't found any word of native support for paletted images. (Storing each pixel using fewer bits that each map to a 32-bit RGBa color) I was considering making my own file format with 4 bits per pixel (and some extra palette info), loading all the images of this new format into RAM before battle, and then when drawing any specific image, decompress only that image into a raw image so it can be rendered properly. I don't know if it's realistic to perform so many assignment operations (appx 200x400 for each character = 160k) each frame. It sounds very hacky to me. Does anyone have advice on whether my solution sounds reasonable, and if there is perhaps a better one available? Thanks so much! (I also attempted to use an image with only 1 channel, then use a shader to perform a series of if statements to translate various values into other colors. Unfortunately, there were too many lines of code for the shader. It is also rather hacky and does not scale well.)

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  • How to query the video ram size of a ATI card on Linux?

    - by Patrick Bao
    I want to know the physical video ram size in my application. I can get the same information of Nvidia card by using "nvidia-settings -q -t VideoRam". I can use amdcccle to find this information, but it's an GUI app, so can't be used in my application. I wonder if there is a way to get this by command, function, or config file? I'm using RHEL 5.4.

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  • How do I get the CPU speed and total physical ram in C#?

    - by edude05
    I need a simple way of checking how much ram and fast the CPU of the host PC is. I tried WMI however the code I'm using private long getCPU() { ManagementClass mObject = new ManagementClass("Win32_Processor"); mObject.Get(); return (long)mObject.Properties["MaxClockSpeed"].Value; } Throws a null reference exception. Furthermore, WMI queries are a bit slow and I need to make a few to get all the specs. Is there a better way?

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  • how to load a file into a blob without loading into RAM first?

    - by Ace Grace
    Hi, I am using C# and I am having trouble loading large files into a binary field use byte arrays. Basically, if I load a file that is too large, I get memory problems. Is there a way to load a file into a binary field without using large amounts of ram, i.e. avoid loading the file into memory first? If it helps, I am using Advantage Database Server and this is using a winforms app not a web app. Regards

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  • label to display graphics card or total system ram through registry possibly?

    - by NightsEVil
    hi all i have this great code that i love that will display the kind of processor model and speed like so RegistryKey Rkey = Registry.LocalMachine; Rkey = Rkey.OpenSubKey("HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0"); Labelproc.Text = (string)Rkey.GetValue("ProcessorNameString"); and i was wondering if theres a way to do this for the kind of graphics card and the total installed system ram (in separate labels)

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