[news.eclipse.tools.jdt] Re: very slow compiling with 3.1 RC1

[Donatas <donce@xxxxxx>]

Did some research in this problem. So most of time takes when compiling
particular two classes (log says "Writing new class file xxx.class") so it
always slows for about 5 minutes when writing one class file. Also tried to
do some profiling, please check attached file.


Jerome Lanneluc wrote:

> You can create a .options file with the following contents:
>
> org.eclipse.jdt.core/debug=true
> org.eclipse.jdt.core/debug/builder=true
>
> And start eclipse with:
> eclipse.exe -debug <path to your .options file> -vm <path to your
> jre>\bin\java.exe
>
> Information will be printed to the DOS console.
>
>
> Donatas wrote:
>> Such problems apperas on full rebuild, it seems that slowness are only in
>> some packages. If there is info how can I turn on diagnostics messages
>> for
>> compiling  I can try to check what classes exactly causes such problems.
>>
>>
>> Jerome Lanneluc wrote:
>>
>>
>>> Our performance stats show that we are still positive in most areas:
>>>
>>
>>
http://download.eclipse.org/downloads/drops/S-3.1RC1-200505271300/performance/org.eclipse.jdt.core.php?
>>
>>
>>> Do you have details on what condition you see this slowdown ?
>>>
>>> Donatas wrote:
>>>
>>>> Have anyone else noticed this problem ? 3.0 does full build about 5
>>>> time faster than 3.1. My project contains more than 5000 classes.
>>>> Source code
>>>> compatibility is set to 1.4. I tried to change warnings  settings but
>>>> this does not help. Any tips ?
>>
>>

Title: Invocation tree

Invocation tree

Session:	eclipse
Time of export:	Friday, June 3, 2005 8:46:25 AM EEST
JVM time:	28:18
Thread selection:	All thread groups
Thread status:	Runnable

---

 50.5% - 985,441 ms org.eclipse.core.internal.jobs.Worker.run

 49.6% - 969,262 ms org.eclipse.core.internal.events.AutoBuildJob.run

 49.6% - 969,262 ms org.eclipse.core.internal.events.AutoBuildJob.doBuild

 49.6% - 969,262 ms org.eclipse.core.internal.events.BuildManager.build

 49.6% - 969,262 ms org.eclipse.core.internal.events.BuildManager.basicBuildLoop

 49.6% - 969,262 ms org.eclipse.core.internal.events.BuildManager.basicBuild

 49.6% - 969,262 ms org.eclipse.core.runtime.Platform.run

 49.6% - 969,262 ms org.eclipse.core.internal.runtime.InternalPlatform.run

 49.6% - 969,262 ms org.eclipse.core.internal.events.BuildManager$1.run

 49.6% - 969,262 ms org.eclipse.core.internal.events.BuildManager.basicBuild

 49.6% - 969,262 ms org.eclipse.core.internal.events.BuildManager.basicBuild

 49.6% - 969,262 ms org.eclipse.core.runtime.Platform.run

 49.6% - 969,262 ms org.eclipse.core.internal.runtime.InternalPlatform.run

 49.6% - 969,262 ms org.eclipse.core.internal.events.BuildManager$2.run

 49.6% - 969,262 ms org.eclipse.jdt.internal.core.builder.JavaBuilder.build

 49.6% - 969,262 ms org.eclipse.jdt.internal.core.builder.JavaBuilder.buildAll

 49.6% - 969,262 ms org.eclipse.jdt.internal.core.builder.BatchImageBuilder.build

 49.6% - 969,262 ms org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile

 49.6% - 969,262 ms org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile

 49.6% - 969,262 ms org.eclipse.jdt.internal.compiler.Compiler.compile

 49.6% - 969,262 ms org.eclipse.jdt.internal.compiler.Compiler.process

 49.6% - 969,262 ms org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve

 49.6% - 969,262 ms org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve

 49.6% - 969,262 ms org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve

 49.6% - 969,262 ms org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve

 49.6% - 969,262 ms org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements

 49.6% - 969,262 ms org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatements

 49.6% - 969,262 ms org.eclipse.jdt.internal.compiler.ast.IfStatement.resolve

 49.6% - 969,262 ms org.eclipse.jdt.internal.compiler.ast._expression_.resolveTypeExpecting

 49.6% - 969,262 ms org.eclipse.jdt.internal.compiler.ast.InstanceOfExpression.resolveType

 24.3% - 474,739 ms org.eclipse.jdt.internal.compiler.ast._expression_.checkCastTypesCompatibility

 2.1% - 41,140 ms org.eclipse.jdt.core.compiler.CharOperation.equals

 0.5% - 9,798 ms org.eclipse.core.internal.events.NotificationManager$NotifyJob.run

 0.3% - 6,379 ms org.eclipse.team.internal.core.BackgroundEventHandler$1.run

 49.5% - 967,361 ms org.eclipse.core.launcher.Main.main

 49.5% - 967,361 ms org.eclipse.core.launcher.Main.run

 49.5% - 967,361 ms org.eclipse.core.launcher.Main.basicRun

 49.5% - 967,361 ms org.eclipse.core.launcher.Main.invokeFramework

 49.5% - 967,361 ms java.lang.reflect.Method.invoke

 49.5% - 967,361 ms sun.reflect.DelegatingMethodAccessorImpl.invoke

 49.5% - 967,361 ms sun.reflect.NativeMethodAccessorImpl.invoke

 49.5% - 967,361 ms sun.reflect.NativeMethodAccessorImpl.invoke0

 49.5% - 967,361 ms org.eclipse.core.runtime.adaptor.EclipseStarter.run

 49.5% - 967,361 ms org.eclipse.core.runtime.adaptor.EclipseStarter.run

 49.5% - 967,361 ms org.eclipse.core.internal.runtime.PlatformActivator$1.run

 49.5% - 967,361 ms org.eclipse.ui.internal.ide.IDEApplication.run

 49.5% - 967,361 ms org.eclipse.ui.PlatformUI.createAndRunWorkbench

 49.5% - 967,361 ms org.eclipse.ui.internal.Workbench.createAndRunWorkbench

 49.5% - 967,361 ms org.eclipse.ui.internal.Workbench.runUI

 48.2% - 941,552 ms org.eclipse.ui.internal.Workbench.runEventLoop

 48.0% - 936,997 ms org.eclipse.ui.application.WorkbenchAdvisor.eventLoopIdle

 47.9% - 936,331 ms org.eclipse.swt.widgets.Display.sleep

 0.2% - 4,511 ms org.eclipse.swt.widgets.Display.readAndDispatch