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  • How to safely reboot via First Boot script

    - by unixman
    With the cost and performance benefits of the SPARC T4 and SPARC T5 systems undeniably validated, the banking sector is actively moving to Solaris 11.  I was recently asked to help a banking customer of ours look at migrating some of their Solaris 10 logic over to Solaris 11.  While we've introduced a number of holistic improvements in Solaris 11, in terms of how we ease long-term software lifecycle management, it is important to appreciate that customers may not be able to move all of their Solaris 10 scripts and procedures at once; there are years of scripts that reflect fine-tuned requirements of proprietary banking software that gets layered on top of the operating system. One of these requirements is to go through a cycle of reboots, after the system is installed, in order to ensure appropriate software dependencies and various configuration files are in-place. While Solaris 10 introduced a facility that aids here, namely SMF, many of our customers simply haven't yet taken the time to take advantage of this - proceeding with logic that, while functional, without further analysis has an appearance of not being optimal in terms of taking advantage of all the niceties bundled in Solaris 11 at no extra cost. When looking at Solaris 11, we recognize that one of the vehicles that bridges the gap between getting the operating system image payload delivered, and the customized banking software installed, is a notion of a First Boot script.  I had a working example of this at one of the Oracle OpenWorld sessions a few years ago - we've since improved our documentation and have introduced sections where this is described in better detail.   If you're looking at this for the first time and you've not worked with IPS and SMF previously, you might get the sense that the tasks are daunting.   There is a set of technologies involved that are jointly engineered in order to make the process reliable, predictable and extensible. As you go down the path of writing your first boot script, you'll be faced with a need to wrap it into a SMF service and then packaged into a IPS package. The IPS package would then need to be placed onto your IPS repository, in order to subsequently be made available to all of your AI (Automated Install) clients (i.e. the systems that you're installing Solaris and your software onto).     With this blog post, I wanted to create a single place that outlines the entire process (simplistically), and provide a hint of how a good old "at" command may make the requirement of forcing an initial reboot handy. The syntax and references to commands here is based on running this on a version of Solaris 11 that has been updated since its initial release in 2011 (i.e. I am writing this on Solaris 11.1) Assuming you've built an AI server (see this How To article for an example), you might be asking yourself: "Ok, I've got some logic that I need executed AFTER Solaris is deployed and I need my own little script that would make that happen. How do I go about hooking that script into the Solaris 11 AI framework?"  You might start here, in Chapter 13 of the "Installing Oracle Solaris 11.1 Systems" guide, which talks about "Running a Custom Script During First Boot".  And as you do, you'll be confronted with command that might be unfamiliar to you if you're new to Solaris 11, like our dear new friend: svcbundle svcbundle is an aide to creating manifests and profiles.  It is awesome, but don't let its awesomeness overwhelm you. (See this How To article by my colleague Glynn Foster for a nice working example).  In order to get your script's logic integrated into the Solaris 11 deployment process, you need to wrap your (shell) script into 2 manifests -  a SMF service manifest and a IPS package manifest.  ....and if you're new to XML, well then -- buckle up We have some examples of small first boot scripts shown here, as templates to build upon. Necessary structure of the script, particularly in leveraging SMF interfaces, is key. I won't go into that here as that is covered nicely in the doc link above.    Let's say your script ends up looking like this (btw: if things appear to be cut-off in your browser, just select them, copy and paste into your editor and it'll be grabbed - the source gets captured eventhough the browser may not render it "correctly" - ah, computers). #!/bin/sh # Load SMF shell support definitions . /lib/svc/share/smf_include.sh # If nothing to do, exit with temporary disable completed=`svcprop -p config/completed site/first-boot-script-svc:default` [ "${completed}" = "true" ] && \ smf_method_exit $SMF_EXIT_TEMP_DISABLE completed "Configuration completed" # Obtain the active BE name from beadm: The active BE on reboot has an R in # the third column of 'beadm list' output. Its name is in column one. bename=`beadm list -Hd|nawk -F ';' '$3 ~ /R/ {print $1}'` beadm create ${bename}.orig echo "Original boot environment saved as ${bename}.orig" # ---- Place your one-time configuration tasks here ---- # For example, if you have to pull some files from your own pre-existing system: /usr/bin/wget -P /var/tmp/ $PULL_DOWN_ADDITIONAL_SCRIPTS_FROM_A_CORPORATE_SYSTEM /usr/bin/chmod 755 /var/tmp/$SCRIPTS_THAT_GOT_PULLED_DOWN_IN_STEP_ABOVE # Clearly the above 2 lines represent some logic that you'd have to customize to fit your needs. # # Perhaps additional things you may want to do here might be of use, like # (gasp!) configuring ssh server for root login and X11 forwarding (for testing), and the like... # # Oh and by the way, after we're done executing all of our proprietary scripts we need to reboot # the system in accordance with our operational software requirements to ensure all layered bits # get initialized properly and pull-in their own modules and components in the right sequence, # subsequently. # We need to set a "time bomb" reboot, that would take place upon completion of this script. # We already know that *this* script depends on multi-user-server SMF milestone, so it should be # safe for us to schedule a reboot for 5 minutes from now. The "at" job get scheduled in the queue # while our little script continues thru the rest of the logic. /usr/bin/at now + 5 minutes <<REBOOT /usr/bin/sync /usr/sbin/reboot REBOOT # ---- End of your customizations ---- # Record that this script's work is done svccfg -s site/first-boot-script-svc:default setprop config/completed = true svcadm refresh site/first-boot-script-svc:default smf_method_exit $SMF_EXIT_TEMP_DISABLE method_completed "Configuration completed"  ...and you're happy with it and are ready to move on. Where do you go and what do you do? The next step is creating the IPS package for your script. Since running the logic of your script constitutes a service, you need to create a service manifest. This is described here, in the middle of Chapter 13 of "Creating an IPS package for the script and service".  Assuming the name of your shell script is first-boot-script.sh, you could end up doing the following: $ cd some_working_directory_for_this_project$ mkdir -p proto/lib/svc/manifest/site$ mkdir -p proto/opt/site $ cp first-boot-script.sh proto/opt/site  Then you would create the service manifest  file like so: $ svcbundle -s service-name=site/first-boot-script-svc \ -s start-method=/opt/site/first-boot-script.sh \ -s instance-property=config:completed:boolean:false -o \ first-boot-script-svc-manifest.xml   ...as described here, and place it into the directory hierarchy above. But before you place it into the directory, make sure to inspect the manifest and adjust the appropriate service dependencies.  That is to say, you want to properly specify what milestone should be reached before your service runs.  There's a <dependency> section that looks like this, before you modify it: <dependency restart_on="none" type="service" name="multi_user_dependency" grouping="require_all"> <service_fmri value="svc:/milestone/multi-user"/>  </dependency>  So if you'd like to have your service run AFTER the multi-user-server milestone has been reached (i.e. later, as multi-user-server has more dependencies then multi-user and our intent to reboot the system may have significant ramifications if done prematurely), you would modify that section to read:  <dependency restart_on="none" type="service" name="multi_user_server_dependency" grouping="require_all"> <service_fmri value="svc:/milestone/multi-user-server"/>  </dependency> Save the file and validate it: $ svccfg validate first-boot-script-svc-manifest.xml Assuming there are no errors returned, copy the file over into the directory hierarchy: $ cp first-boot-script-svc-manifest.xml proto/lib/svc/manifest/site Now that we've created the service manifest (.xml), create the package manifest (.p5m) file named: first-boot-script.p5m.  Populate it as follows: set name=pkg.fmri value=first-boot-script-AT-1-DOT-0,5.11-0 set name=pkg.summary value="AI first-boot script" set name=pkg.description value="Script that runs at first boot after AI installation" set name=info.classification value=\ "org.opensolaris.category.2008:System/Administration and Configuration" file lib/svc/manifest/site/first-boot-script-svc-manifest.xml \ path=lib/svc/manifest/site/first-boot-script-svc-manifest.xml owner=root \ group=sys mode=0444 dir path=opt/site owner=root group=sys mode=0755 file opt/site/first-boot-script.sh path=opt/site/first-boot-script.sh \ owner=root group=sys mode=0555 Now we are going to publish this package into a IPS repository. If you don't have one yet, don't worry. You have 2 choices: You can either  publish this package into your mirror of the Oracle Solaris IPS repo or create your own customized repo.  The best practice is to create your own customized repo, leaving your mirror of the Oracle Solaris IPS repo untouched.  From this point, you have 2 choices as well - you can either create a repo that will be accessible by your clients via HTTP or via NFS.  Since HTTP is how the default Solaris repo is accessed, we'll go with HTTP for your own IPS repo.   This nice and comprehensive How To by Albert White describes how to create multiple internal IPS repos for Solaris 11. We'll zero in on the basic elements for our needs here: We'll create the IPS repo directory structure hanging off a separate ZFS file system, and we'll tie it into an instance of pkg.depotd. We do this because we want our IPS repo to be accessible to our AI clients through HTTP, and the pkg.depotd SMF service bundled in Solaris 11 can help us do this. We proceed as follows: # zfs create rpool/export/MyIPSrepo # pkgrepo create /export/MyIPSrepo # svccfg -s pkg/server add MyIPSrepo # svccfg -s pkg/server:MyIPSrepo addpg pkg application # svccfg -s pkg/server:MyIPSrepo setprop pkg/port=10081 # svccfg -s pkg/server:MyIPSrepo setprop pkg/inst_root=/export/MyIPSrepo # svccfg -s pkg/server:MyIPSrepo addpg general framework # svccfg -s pkg/server:MyIPSrepo addpropvalue general/complete astring: MyIPSrepo # svccfg -s pkg/server:MyIPSrepo addpropvalue general/enabled boolean: true # svccfg -s pkg/server:MyIPSrepo setprop pkg/readonly=true # svccfg -s pkg/server:MyIPSrepo setprop pkg/proxy_base = astring: http://your_internal_websrvr/MyIPSrepo # svccfg -s pkg/server:MyIPSrepo setprop pkg/threads = 200 # svcadm refresh application/pkg/server:MyIPSrepo # svcadm enable application/pkg/server:MyIPSrepo Now that the IPS repo is created, we need to publish our package into it: # pkgsend publish -d ./proto -s /export/MyIPSrepo first-boot-script.p5m If you find yourself making changes to your script, remember to up-rev the version in the .p5m file (which is your IPS package manifest), and re-publish the IPS package. Next, you need to go to your AI install server (which might be the same machine) and modify the AI manifest to include a reference to your newly created package.  We do that by listing an additional publisher, which would look like this (replacing the IP address and port with your own, from the "svccfg" commands up above): <publisher name="firstboot"> <origin name="http://192.168.1.222:10081"/> </publisher>  Further down, in the  <software_data action="install">  section add: <name>pkg:/first-boot-script</name> Make sure to update your Automated Install service with the new AI manifest via installadm update-manifest command.  Don't forget to boot your client from the network to watch the entire process unfold and your script get tested.  Once the system makes the initial reboot, the first boot script will be executed and whatever logic you've specified in it should be executed, too, followed by a nice reboot. When the system comes up, your service should stay in a disabled state, as specified by the tailing lines of your SMF script - this is normal and should be left as is as it helps provide an auditing trail for you.   Because the reboot is quite a significant action for the system, you may want to add additional logic to the script that actually places and then checks for presence of certain lock files in order to avoid doing a reboot unnecessarily. You may also want to, alternatively, remove the SMF service entirely - if you're unsure of the potential for someone to try and accidentally enable that service -- eventhough its role in life is to only run once upon the system's first boot. That is how I spent a good chunk of my pre-Halloween time this week, hope yours was just as SPARCkly^H^H^H^H fun!    

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  • Moq how to correctly mock read-only properties or set only properies

    - by Chris Marisic
    What is the correct way for dealing with interfaces the expose only read-only or set-only properties with Moq? Previously I've added the other accessor but this has bleed into my domain too far with random throw new NotImplementedException() statements throughout. I just want to do something simple like mock.VerifySet(view => view.SetOnlyValue, Times.Never()); But this is a compile error of The property 'SetOnlyValue' has no getter

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  • Using FFmpeg in c#?

    - by daniel
    So i know its a fairly big challenge but i want to write a basic movie player/converter in c# using the FFmpeg library. However the first obstacle i need to overcome is wrapping the FFmpeg library in c#. I downloaded ffmpeg but couldn't compile it on windows, so i downloaded a precompiled version for me. Ok awesome. Then i started looking for c# wrappers. I have looked around and have found a few wrappers such as SharpFFmpeg (http://sourceforge.net/projects/sharpffmpeg/) and ffmpeg-sharp (http://code.google.com/p/ffmpeg-sharp/). First of all i wanted to use ffmpeg-sharp as its LGPL and SharpFFmpeg is GPL. However it had quite a few compile errors. Turns out it was written for the mono compiler, i tried compiling it with mon but couldn't figure out how. I then started to manually fix the compiler errors myself, but came across a few scary ones and thought i'd better leave those alone. So i gave up on ffmpeg-sharp. Then i looked at SharpFFmpeg and it looks like what i want, all the functions P/Invoked for me. However its GPL? Both the AVCodec.cs and AVFormat.cs files look like ports of avcodec.c and avformat.c which i reckon i could port myself? Then not have to worry about licencing. But i wan't to get this right before i go ahead and start coding. Should I: Write my own c++ library for interacting with ffmpeg, then have my c# program talk to the c++ library in order to play/convert videos etc. OR Port avcodec.h and avformat.h (is that all i need?) to c# by using a whole lot of DllImports and write it entirely in c#? First of all consider that i'm not great at c++ as i rarely use it but i know enough to get around. The reason i'm thinking #1 might be the better option is that most FFmpeg tutorials are in c++ and i'd also have more control over memory management that if i was to do it in c#. What do you think? Also would you happen to have any usefull links (perhaps a tutorial) for using FFmpeg? EDIT: spelling mistakes

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  • Pylibmc requiring libmemcached >= 0.32

    - by resopollution
    On Ubuntu, I installed libmemcached-dev using the following command: apt-get install libmemcached-dev Unfortunately it installs libmemcached version 0.31, and pylibmc requires that I compile with v 0.32+ to run, otherwise I get an import error. I've tried removing libmemcached-dev with apt-get --purge remove, then installing libmemcached v 0.38, then re-compiling pylibmc, but it still gives me the requires libmemcached v 0.32+ error.

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  • Portable C Compiler (pcc) with GTK+ in Code::Blocks

    - by CMPITG
    I had some problems when trying to compile a GTK+ program with Portable C Compiler (pcc) using Code::Blocks in Windows. When I tried to build the default GTK+ project in Code::Blocks, I get these errors: -------------- Build: Debug in cb-temp2 --------------- Compiling: main.c C:\CMPITG\gtk\include\glib-2.0/glib/gutils.h, line 423: parameter 'glib_major_version' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gutils.h, line 424: function declaration in bad context C:\CMPITG\gtk\include\glib-2.0/glib/gutils.h, line 424: parameter '__declspec' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gutils.h, line 424: parse error C:\CMPITG\gtk\include\glib-2.0/glib/gutils.h, line 425: redeclaration of __declspec C:\CMPITG\gtk\include\glib-2.0/glib/gutils.h, line 425: parameter 'glib_micro_version' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gutils.h, line 426: function declaration in bad context C:\CMPITG\gtk\include\glib-2.0/glib/gutils.h, line 426: parameter '__declspec' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gutils.h, line 426: parse error C:\CMPITG\gtk\include\glib-2.0/glib/gutils.h, line 427: redeclaration of __declspec C:\CMPITG\gtk\include\glib-2.0/glib/gutils.h, line 427: parameter 'glib_binary_age' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gutils.h, line 431: parameter 'glib_check_version' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gatomic.h, line 42: parameter 'g_atomic_int_exchange_and_add' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gatomic.h, line 44: parameter 'g_atomic_int_add' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gatomic.h, line 47: parameter 'g_atomic_int_compare_and_exchange' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gatomic.h, line 50: parameter 'g_atomic_pointer_compare_and_exchange' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gatomic.h, line 52: parameter 'g_atomic_int_get' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gatomic.h, line 54: parameter 'g_atomic_int_set' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gatomic.h, line 55: parameter 'g_atomic_pointer_get' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gatomic.h, line 57: parameter 'g_atomic_pointer_set' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gthread.h, line 44: parameter 'g_thread_error_quark' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gthread.h, line 50: parameter 'GThreadError' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gthread.h, line 52: parameter 'GThreadFunc' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gthread.h, line 60: parameter 'GThreadPriority' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gthread.h, line 62: parameter 'GThread' not defined C:\CMPITG\gtk\include\glib-2.0/glib/gthread.h, line 66: parse error C:\CMPITG\gtk\include\glib-2.0/glib/gthread.h, line 66: invalid function definition C:\CMPITG\gtk\include\glib-2.0/glib/gthread.h, line 66: function illegal in structure or union C:\CMPITG\gtk\include\glib-2.0/glib/gthread.h, line 66: invalid function definition C:\CMPITG\gtk\include\glib-2.0/glib/gthread.h, line 66: function illegal in structure or union C:\CMPITG\gtk\include\glib-2.0/glib/gthread.h, line 67: cannot recover from earlier errors: goodbye! Process terminated with status 1 (0 minutes, 1 seconds) 0 errors, 0 warnings I have successfully compiled the same project with gcc and now I'm still not able to compile it with pcc. Does anyone know how to solve it?

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  • Compiling Asterisk 1.6.2 on MacOSX Server

    - by Jeremy Quinn
    I get this error while trying to compile Asterisk 1.6.2 on Snow Leopard Server : ld: symbol dyld_stub_binding_helper not defined (usually in crt1.o/dylib1.o/bundle1.o) Googling this I’ve found nothing enlightening so far. This is what I am trying: ./configure --without-h323 --without-zaptel --host=x86_64-darwin make menuselect make

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  • qt qmake mkspecs relative path

    - by Fabien Bernede
    Hello, when I compile Qt with Windows SDK 7.0, I use : configure.exe -shared -platform win32-msvc2008 -ltcg -no-dsp -no-vcproj nmake ...no error occured. But when I move or change name of my Qt folder, qmake.exe said me makespec is not defined, so I configure my QMAKESPEC to win32-msvc2008, I try again, but now it said me it cannot find mkspecs folder, it try to find this folder only where I compiled Qt (absolute path), I want qmake.exe use relative path : ../mkspecs/ not C:\qt-4.6.2\mkspecs. How can I solve this issue ?

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  • Objective-C++ compiles for iPhone, but not simulator

    - by John Smith
    I have a C++ library I want to add to my iphone project. In one header file I declare @class a { cppvirtualclass V; } This compiles fine for the iPhone device with Release settings. However it refuses to compile for the Simulator with or without debug info. It give the error error: type 'V' has virtual member functions. Is there a way out of this or do I have to define only concrete C++ classes?

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  • Wpf: Storyboard.TargetName works, but Setter TargetName doesn't.

    - by MainMa
    Hi, Let's say we have a XAML code like this: <Style TargetType="{x:Type ListBoxItem}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type ListBoxItem}"> <Border HorizontalAlignment="Center" VerticalAlignment="Center"> <Border.LayoutTransform> <!--We are rotating randomly each image. Selected one will be rotated to 45°.--> <RotateTransform Angle="{Binding RandomAngle}" x:Name="globalRotation"/> </Border.LayoutTransform> <Grid> <Image Source="{Binding ImageLocation}" Stretch="None" /> <TextBlock x:Name="title" Text="{Binding Title}" /> </Grid> </Border> <ControlTemplate.Triggers> <Trigger Property="IsSelected" Value="True"> <Setter TargetName="title" Property="Visibility" Value="Visible"/> <!--The next line will not compile.--> <Setter TargetName="globalRotation" Property="Angle" Value="45"/> <Trigger.EnterActions> <BeginStoryboard> <Storyboard> <!--This compiles well.--> <DoubleAnimation Storyboard.TargetName="globalRotation" Storyboard.TargetProperty="Angle" To="45" Duration="00:00:03"/> </Storyboard> </BeginStoryboard> </Trigger.EnterActions> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style> This code is intended to display a set of images in a listbox. Each image has a random rotation, but when selected, rotates to 45 degrees. Rotating selected image through a storyboard works well. I just specify Storyboard.TargetName and it rotates the image when selected (Trigger.ExitActions is omitted to make the code shorter). Now, if I want, instead of using a storyboard, assign 45 degrees value directly, I can't do that, because <Setter TargetName="globalRotation" Property="Angle" Value="45"/>: it compiles with "Cannot find the Trigger target 'globalRotation'. (The target must appear before any Setters, Triggers, or Conditions that use it.)" error. What happens? I suppose that Storyboard.TargetName is evaluated during runtime, so let me compile it. Is it right? How to make it work with just a setter, without using a storyboard?

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  • property inject in Autofac

    - by Benny
    I am compiling: PropertyInject wiki page why this line: builder.RegisterType().InjectProperties(); doesn't compile? how to do property inject in autofac? I am using vs2010, autofac 2.1.13.813. thanks. EDIT: PropertyInjection should be like this in new version of AutoFac: builder.RegisterType().PropertiesAutowired(false);

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  • actionscript - testing actionscript via command line

    - by ludicco
    Hello, I would like to know if is there any easy way to test actionscript by using some kind of application like ruby's irb or javasctip spidermonkey where you can just open up your terminal and type the code straight away. This would be a good time saver when speaking of actionscript, since to test some syntaxes, classes, etc. you would need to compile it via fsch. but still not a good option just for quick testing, etc... Cheers

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  • Why can't Android find android.graphics.OpenGLContext?

    - by lostInTransit
    I am trying to compile some OpenGL samples available on the net in SDK 1.5. But the import statement for android.graphics.OpenGLContext gives me an error saying the class cannot be found. Can someone please tell me where I can find this class. And if it is no longer supported by the android SDK then how do I port the samples to 1.5.

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  • Objective-C, .m / .mm performance difference?

    - by Sam
    I tend to use the .mm extension by default when creating new classes so that I can use ObjC++ later on if I require it. Is there any disadvantage to doing this? When would you prefer .m? Does .m compile to a faster executable (since C is generally faster than C++)?

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  • Registering instances with MEF

    - by yang
    I have to register an object instance into a container. I can't use the generic ComposeExportedValue<T> since I don't know what T is at compile time. The method I need is something like this: container.RegisterInstance(Type someType, object instance) Any ideas? Thanks.

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  • MEF Property Export with PartCreationPolicy

    - by Daniel Skinner
    When I try to do this: [Export(typeof(IMyService))] [PartCreationPolicy(CreationPolicy.Shared)] private MyService Service { get { var service = new MyService(); service.Configure(); return service; } } I get a compile error: Attribute 'PartCreationPolicy' is not valid on this declaration type. It is only valid on 'class' declarations. Is this a bug? I don't see why MEF would allow property exports but not allow one to specify the part lifetime. Using VS2010 RC.

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  • SmartGWT Program not displaying getting wnd.isc.Browser is null

    - by Holograham
    When running my gwt program in GWT Development Mode it fails to display showing this error in the console: com.google.gwt.core.client.JavaScriptException: (TypeError): '$wnd.isc.Browser' is null or not an object I do not believe the error is due to my project setup. Other member of the team can compile fine. It is most likely some type of config problem on my end. I have re-checked out the project and still get the error. I am using the latest jdk 1.6.0_19 if that matters

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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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  • Conversion to grayscale using emguCV in C#

    - by Amal
    Hi. I am new to EmguCV. I want to convert an rgb image into gray scale. For the conversion I have used the code Image grayImage = ColordImage.Convert(); Now when i compile this code in C# it gives no error,but when i run it then after a few seconds it gives me the exception at this line of code that this type of conversion is not supported by OpenCV. Now can any one help me solve this problem. Regards Amal

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  • Yesterday's broken codebase hunt me back

    - by sandun dhammika
    I need a fun oky. I just love this openmoko hardware and hacking into it. Please could somebody help me to compile qemu.I 'm so sad and I want to compile qemu and it required the GCC3.x and then I downloaded gcc 3.2 but when I configure it and build it, it gives a very sad error message. G_FOR_TARGET=" "SHELL=/bin/sh" "EXPECT=expect" "RUNTEST=runtest" "RUNTESTFLAGS=" "exec_prefix=/gcc-3.2" "infodir=/gcc-3.2/info" "libdir=/gcc-3.2/lib" "prefix=/gcc-3.2" "tooldir=/gcc-3.2/i686-pc-linux-gnu" "AR=ar" "AS=as" "CC=gcc" "CXX=c++" "LD=ld" "LIBCFLAGS=-g -O2" "NM=nm" "PICFLAG=" "RANLIB=ranlib" "DESTDIR=" DO=all multi-do make[1]: Leaving directory `/gcc-3.2/gcc-3.2/zlib' make[1]: Entering directory `/gcc-3.2/gcc-3.2/fastjar' make[1]: Leaving directory `/gcc-3.2/gcc-3.2/fastjar' make[1]: Entering directory `/gcc-3.2/gcc-3.2/gcc' gcc -c -DIN_GCC -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -I. -I. -I./. -I./config -I./../include ./read-rtl.c -o read-rtl.o In file included from ./read-rtl.c:24:0: ./rtl.h:125:3: warning: type of bit-field ‘code’ is a GCC extension ./rtl.h:128:3: warning: type of bit-field ‘mode’ is a GCC extension ./read-rtl.c: In function ‘fatal_with_file_and_line’: ./read-rtl.c:61:1: warning: traditional C rejects ISO C style function definitions ./read-rtl.c: In function ‘read_rtx’: ./read-rtl.c:662:8: error: lvalue required as increment operand make[1]: *** [read-rtl.o] Error 1 make[1]: Leaving directory `/gcc-3.2/gcc-3.2/gcc' make: *** [all-gcc] Error 2 This is so sad and this is sooo bad. I have searched patches and workaround all over the Internet to this,but I couldn't find any alternative for this. I'm out of my patience now. I want that virtual machine ready and I want to make a debug host cos I don't have some money to buy original neo 1937 hardware. The patch that I have found comes with a nasty error too. I'm so sick of it.Any idea how could I fix this problem and make this work? Please please I'm begging you somebody help me please. Thanks all.

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  • How can I define a clojure type that implements the servlet interface?

    - by Rob Lachlan
    I'm attempting to use deftype (from the bleeding-edge clojure 1.2 branch) to create a java class that implements the java Servlet interface. I would expect the code below to compile (even though it's not very useful). (ns foo [:import [javax.servlet Servlet ServletRequest ServletResponse]]) (deftype servlet [] javax.servlet.Servlet (service [this #^javax.servlet.ServletRequest request #^javax.servlet.ServletResponse response] nil)) But it doesn't compile. The compiler produces the message: Mismatched return type: service, expected: void, had: java.lang.Object [Thrown class java.lang.IllegalArgumentException] Which doesn't make sense to me, because I'm returning nil. So the fact that the return type of the method is void shouldn't be a problem. For instance, for the java.util.Set interface: (deftype bar [#^Number n] java.util.Set (clear [this] nil)) compiles without issue. So what am I doing wrong with the Servlet interface? To be clear: I know that the typical case is to subclass one of the servlet abstract classes rather than implement this interface directly, but it should still be possible to do this. Stack Trace: The stack trace for the (deftype servlet... is: Mismatched return type: service, expected: void, had: java.lang.Object [Thrown class java.lang.IllegalArgumentException] Restarts: 0: [ABORT] Return to SLIME's top level. Backtrace: 0: clojure.lang.Compiler$NewInstanceMethod.parse(Compiler.java:6461) 1: clojure.lang.Compiler$NewInstanceExpr.build(Compiler.java:6119) 2: clojure.lang.Compiler$NewInstanceExpr$DeftypeParser.parse(Compiler.java:6003) 3: clojure.lang.Compiler.analyzeSeq(Compiler.java:5289) 4: clojure.lang.Compiler.analyze(Compiler.java:5110) 5: clojure.lang.Compiler.analyze(Compiler.java:5071) 6: clojure.lang.Compiler.eval(Compiler.java:5347) 7: clojure.lang.Compiler.eval(Compiler.java:5334) 8: clojure.lang.Compiler.eval(Compiler.java:5311) 9: clojure.core$eval__4350.invoke(core.clj:2364) 10: swank.commands.basic$eval_region__673.invoke(basic.clj:40) 11: swank.commands.basic$eval_region__673.invoke(basic.clj:31) 12: swank.commands.basic$eval__686$listener_eval__687.invoke(basic.clj:54) 13: clojure.lang.Var.invoke(Var.java:365) 14: foo$eval__2285.invoke(NO_SOURCE_FILE) 15: clojure.lang.Compiler.eval(Compiler.java:5343) 16: clojure.lang.Compiler.eval(Compiler.java:5311) 17: clojure.core$eval__4350.invoke(core.clj:2364) 18: swank.core$eval_in_emacs_package__320.invoke(core.clj:59) 19: swank.core$eval_for_emacs__383.invoke(core.clj:128) 20: clojure.lang.Var.invoke(Var.java:373) 21: clojure.lang.AFn.applyToHelper(AFn.java:169) 22: clojure.lang.Var.applyTo(Var.java:482) 23: clojure.core$apply__3776.invoke(core.clj:535) 24: swank.core$eval_from_control__322.invoke(core.clj:66) 25: swank.core$eval_loop__324.invoke(core.clj:71) 26: swank.core$spawn_repl_thread__434$fn__464$fn__465.invoke(core.clj:183) 27: clojure.lang.AFn.applyToHelper(AFn.java:159) 28: clojure.lang.AFn.applyTo(AFn.java:151) 29: clojure.core$apply__3776.invoke(core.clj:535) 30: swank.core$spawn_repl_thread__434$fn__464.doInvoke(core.clj:180) 31: clojure.lang.RestFn.invoke(RestFn.java:398) 32: clojure.lang.AFn.run(AFn.java:24) 33: java.lang.Thread.run(Thread.java:637)

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