While doing more testing I found that I had to make some changes in src/share/vm/adlc/formssel.cpp as well. Here is an updated webrev: http://cr.openjdk.java.net/~roland/membar/webrev.03/ Roland.
Good. Vladimir On 8/1/11 5:00 AM, Roland Westrelin wrote: > > While doing more testing I found that I had to make some changes in src/share/vm/adlc/formssel.cpp as well. Here is an updated webrev: > > http://cr.openjdk.java.net/~roland/membar/webrev.03/ > > Roland.
Looks good. -- Christian On Aug 1, 2011, at 2:00 PM, Roland Westrelin wrote: > > While doing more testing I found that I had to make some changes in src/share/vm/adlc/formssel.cpp as well. Here is an updated webrev: > > http://cr.openjdk.java.net/~roland/membar/webrev.03/ > > Roland.
Hi, I've been trying to play with igv from http://ssw.jku.at/General/Staff/TW/igv.html, http://ssw.jku.at/General/Staff/PH/ but I don't know how to generate the required log files. What sort of files should I expect the igv to be able to read? The example files are graphDocument XMLs. I was hoping to be able to generate a file with something like the following: -XX:+UnlockDiagnosticVMOptions -XX:+LogCompilation -XX:LogFile=output.xml Needless to say, these hotspot_log files are totally different and the igv barfs with the below. java.lang.NullPointerException at com.sun.hotspot.igv.data.GraphDocument.addGraphDocument(GraphDocument.java:70) at com.sun.hotspot.igv.coordinator.actions.ImportAction$3.run(ImportAction.java:128) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572) [catch] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997) How do I get the jvm to generate the right output file? Many thanks, Joe
You want: -XX:PrintIdealGraphLevel=1 -XX:PrintIdealGraphFile=output.xml The README of the visualizer also helps: http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/file/tip/src/share/tools/IdealGraphVisualizer/README -- Christian On Aug 3, 2011, at 4:17 PM, Joe Kearney wrote: > Hi, > > I've been trying to play with igv from > http://ssw.jku.at/General/Staff/TW/igv.html, > http://ssw.jku.at/General/Staff/PH/ but I don't know how to generate > the required log files. What sort of files should I expect the igv to > be able to read? The example files are graphDocument XMLs. I was > hoping to be able to generate a file with something like the > following: > > -XX:+UnlockDiagnosticVMOptions -XX:+LogCompilation -XX:LogFile=output.xml > > Needless to say, these hotspot_log files are totally different and the > igv barfs with the below. > > java.lang.NullPointerException > at com.sun.hotspot.igv.data.GraphDocument.addGraphDocument(GraphDocument.java:70) > at com.sun.hotspot.igv.coordinator.actions.ImportAction$3.run(ImportAction.java:128) > at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572) > [catch] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997)(Continue reading)
Ah, thanks for the readme link. I can't get hotspot 1.6.0_25 or 1.7.0 to recognise the PrintIdealGraphLevel/PrintIdealGraphFile options. I tried with UnlockDiagnosticVMOptions etc as well. to no avail. Is there something else needed to expose this? Joe On 3 August 2011 15:51, Christian Thalinger <christian.thalinger@...> wrote: > You want: -XX:PrintIdealGraphLevel=1 -XX:PrintIdealGraphFile=output.xml > > The README of the visualizer also helps: > > http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/file/tip/src/share/tools/IdealGraphVisualizer/README > > -- Christian > > On Aug 3, 2011, at 4:17 PM, Joe Kearney wrote: > >> Hi, >> >> I've been trying to play with igv from >> http://ssw.jku.at/General/Staff/TW/igv.html, >> http://ssw.jku.at/General/Staff/PH/ but I don't know how to generate >> the required log files. What sort of files should I expect the igv to >> be able to read? The example files are graphDocument XMLs. I was >> hoping to be able to generate a file with something like the >> following:(Continue reading)
You need a debug build. -- Christian On Aug 3, 2011, at 6:37 PM, Joe Kearney wrote: > Ah, thanks for the readme link. > > I can't get hotspot 1.6.0_25 or 1.7.0 to recognise the > PrintIdealGraphLevel/PrintIdealGraphFile options. I tried with > UnlockDiagnosticVMOptions etc as well. to no avail. Is there something > else needed to expose this? > > Joe > > On 3 August 2011 15:51, Christian Thalinger > <christian.thalinger@...> wrote: >> You want: -XX:PrintIdealGraphLevel=1 -XX:PrintIdealGraphFile=output.xml >> >> The README of the visualizer also helps: >> >> http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/file/tip/src/share/tools/IdealGraphVisualizer/README >> >> -- Christian >> >> On Aug 3, 2011, at 4:17 PM, Joe Kearney wrote: >> >>> Hi, >>> >>> I've been trying to play with igv from >>> http://ssw.jku.at/General/Staff/TW/igv.html, >>> http://ssw.jku.at/General/Staff/PH/ but I don't know how to generate(Continue reading)
It's not available in the product as it's really intended for developers. Use a fastdebug build. tom On Aug 3, 2011, at 9:37 AM, Joe Kearney wrote: > Ah, thanks for the readme link. > > I can't get hotspot 1.6.0_25 or 1.7.0 to recognise the > PrintIdealGraphLevel/PrintIdealGraphFile options. I tried with > UnlockDiagnosticVMOptions etc as well. to no avail. Is there something > else needed to expose this? > > Joe > > On 3 August 2011 15:51, Christian Thalinger > <christian.thalinger@...> wrote: >> You want: -XX:PrintIdealGraphLevel=1 -XX:PrintIdealGraphFile=output.xml >> >> The README of the visualizer also helps: >> >> http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/file/tip/src/share/tools/IdealGraphVisualizer/README >> >> -- Christian >> >> On Aug 3, 2011, at 4:17 PM, Joe Kearney wrote: >> >>> Hi, >>> >>> I've been trying to play with igv from(Continue reading)
Oh ok, I didn't realise. Thanks. Are there any plans to make it more widely available? I can see it being useful for experimenting to squeeze performance. Thanks, Joe On 3 August 2011 17:42, Tom Rodriguez <tom.rodriguez@...> wrote: > It's not available in the product as it's really intended for developers. Use a fastdebug build. > > tom > > On Aug 3, 2011, at 9:37 AM, Joe Kearney wrote: > >> Ah, thanks for the readme link. >> >> I can't get hotspot 1.6.0_25 or 1.7.0 to recognise the >> PrintIdealGraphLevel/PrintIdealGraphFile options. I tried with >> UnlockDiagnosticVMOptions etc as well. to no avail. Is there something >> else needed to expose this? >> >> Joe >> >> On 3 August 2011 15:51, Christian Thalinger >> <christian.thalinger@...> wrote: >>> You want: -XX:PrintIdealGraphLevel=1 -XX:PrintIdealGraphFile=output.xml >>> >>> The README of the visualizer also helps: >>> >>> http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/file/tip/src/share/tools/IdealGraphVisualizer/README(Continue reading)
It seems that madvise(MADV_FREE) breaks pages reservation semantics of the the underlying segment. With tight memory constraints this would cause a race for pages and a segfault if the JVM louses. The solution is to revert back to the previous implementation of os::free_memory() that used mmap(). Webrev: http://cr.openjdk.java.net/~iveresov/7060842/webrev.00/ Tested is gc test suite. igor
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