trouble passing JVM startup options using JTREG
Igor Ignatyev
igor.ignatyev at oracle.com
Tue Apr 18 16:23:51 UTC 2017
Ramki,
if you want jtreg to pass a flag to JDK under test,you should specify by jtreg -javaoptions flag[1]:
/home/ramki/9dev/build/linux-x86_64-normal-server-release/images/jdk/bin/java -jar /home/ramki/jtreg/lib/jtreg.jar -verbose:all -javaoptions:-XX:ConcGCThreads=1 -jdk:/home/ramki/9dev/build/linux-x86_64-normal-server-release/images/jdk /home/ramki/9dev/hotspot/test/gc/g1/TestEagerReclaimHumongousRegionsClearMarkBits.java
[1] http://openjdk.java.net/jtreg/command-help.html
Thanks,
-- Igor
> On Apr 18, 2017, at 9:16 AM, Ram Krishnan <ramkri123 at gmail.com> wrote:
>
> Hi Dima,
>
> Thanks.
>
> I tried your suggestion and also examined the .jtr file in JTWork/gc/g1/ folder. I am getting the same results as before.
>
> Thanks,
> Ramki
>
> On Tue, Apr 18, 2017 at 8:12 AM, Dmitry Fazunenko <dmitry.fazunenko at oracle.com <mailto:dmitry.fazunenko at oracle.com>> wrote:
> Hi Ramki,
>
> I think you need to specify "-jdk:<your_java_home>" option to jtreg:
>
> /home/ramki/9dev/build/linux-x86_64-normal-server-release/images/jdk/bin/java -jar /home/ramki/jtreg/lib/jtreg.jar -verbose:all -jdk:/home/ramki/9dev/build/linux-x86_64-normal-server-release/images/jdk /home/ramki/9dev/hotspot/test/gc/g1/TestEagerReclaimHumongousRegionsClearMarkBits.java
>
> More information about test execution you can find in the .jtr file created in JTWork/gc/g1/ folder.
>
> Thanks,
> Dima
>
>
>
> On 18.04.2017 17:56, Ram Krishnan wrote:
>> Hi Dmitry,
>>
>> Thanks, more below.
>>
>> In the expanded command line option, ConcGCThread is indeed set to 1 as expected in the ReclaimRegionFastclass JVM. In the direct jtreg option, ConcGCThread is 0 in both JVMs. The usage details are below. My build is based on JDK 9 and I downloaded the latest jtreg. There may be something wrong in my jtreg usage -- can you please clarify?
>>
>> Using jtreg directly does not work
>> ----------------------------------
>> /home/ramki/9dev/build/linux-x86_64-normal-server-release/images/jdk/bin/java -jar /home/ramki/jtreg/lib/jtreg.jar -verbose:all /home/ramki/9dev/hotspot/test/gc/g1/TestEagerReclaimHumongousRegionsClearMarkBits.java
>>
>> Command line option works
>> -------------------------
>> /home/ramki/9dev/build/linux-x86_64-normal-server-release/images/jdk/bin/java -cp /home/ramki/9dev/hotspot/test/JTwork/classes/gc/g1:/home/ramki/9dev/hotspot/test/gc/g1:/home/ramki/9dev/hotspot/test/JTwork/classes/test/lib:/home/ramki/9dev/test/lib:/home/ramki/jtreg/lib/javatest.jar:/home/ramki/jtreg/lib/jtreg.jar -XX:+UseG1GC -Xms128M -Xmx128M -Xmn2M -XX:G1HeapRegionSize=1M -XX:InitiatingHeapOccupancyPercent=0 -Xlog:gc -XX:+UnlockDiagnosticVMOptions -XX:+VerifyAfterGC -XX:ConcGCThreads=1 -XX:+IgnoreUnrecognizedVMOptions -XX:+G1VerifyBitmaps -XX:G1GcCpuLLCCachePartitionPercent=48 ReclaimRegionFast
>>
>> Thanks,
>> Ramki
>>
>> On Mon, Apr 17, 2017 at 11:21 PM, Dmitry Fazunenko <dmitry.fazunenko at oracle.com <mailto:dmitry.fazunenko at oracle.com>> wrote:
>> Hi Ramki,
>>
>> It's very unlikely to be an issue related to jtreg somehow.
>> I ran the test you mentioned manually, this is the quote from .jtr file:
>> ...
>> Command line: [/jdk9/solaris-sparcv9/bin/java -d64 -cp /home/fa/hs-int/hotspot/test/gc/g1/JTwork/classes/gc/g1:/home/fa/hs-int/hotspot/test/gc/g1:/home/fa/hs-int/hotspot/test/gc/g1/JTwork/classes/test/lib:/home/fa/hs-int/test/lib:/home/fa/jtreg/lib/javatest.jar:/home/fa/jtreg/lib/jtreg.jar -XX:+UseG1GC -Xms128M -Xmx128M -Xmn2M -XX:G1HeapRegionSize=1M -XX:InitiatingHeapOccupancyPercent=0 -Xlog:gc -XX:+UnlockDiagnosticVMOptions -XX:+VerifyAfterGC -XX:ConcGCThreads=1 -XX:+IgnoreUnrecognizedVMOptions -XX:+G1VerifyBitmaps
>>
>> ReclaimRegionFast ]
>> ...
>> All the VM options are passed as expected.
>>
>> > I have confirmed this through prints in the JVM code base.
>> I'm not sure what do you mean here, but I guess you did something wrong.
>>
>> Please note, during execution of this test two JVM are launched:
>> - the first one started by jtreg (TestEagerReclaimHumongousRegionsClearMarkBits class)
>> - the second started by test (ReclaimRegionFast class)
>>
>> In the first one
>>
>> ConcGCThread should be set to 0.
>>
>> Thanks,
>> Dima
>>
>> On 18.04.2017 3:09, Ram Krishnan wrote:
>>> Hi Jenny,
>>>
>>> I tried what you suggested. Hotspot output indeed shows ConcGCThreads as 1.
>>>
>>> The problem seems to be interaction with jtreg.
>>>
>>> Thanks,
>>> Ramki
>>>
>>> On Mon, Apr 17, 2017 at 4:49 PM, Jenny Zhang <yu.zhang at oracle.com <mailto:yu.zhang at oracle.com>> wrote:
>>> Ramki,
>>>
>>> Can you do the following to be sure that hotspot did not take the parameter?
>>> java -XX:
>>>
>>> ConcGCThreads=1 -XX:+PrintFlagsFinal
>>>
>>> I am using jdk9b154, the output shows it changed the ConcGCThreads to 1
>>>
>>> Thanks
>>> Jenny
>>>
>>> On 4/17/2017 4:33 PM, Ram Krishnan wrote:
>>>> Many thanks Jonathan for the immediate reply.
>>>>
>>>> I am copying the hotspot gc team.
>>>>
>>>> Hotspot gc team -- your help would be much appreciated on the topic below.
>>>>
>>>> Thanks,
>>>> Ramki
>>>>
>>>> On Mon, Apr 17, 2017 at 2:29 PM, Jonathan Gibbons <jonathan.gibbons at oracle.com <mailto:jonathan.gibbons at oracle.com>> wrote:
>>>>
>>>>
>>>> On 04/17/2017 02:18 PM, Ram Krishnan wrote:
>>>>> Hi,
>>>>>
>>>>> I have been able to successfully run all the tests in hotspot/test/gc/g1 using jtreg.
>>>>>
>>>>> The only gotcha I am facing is that the JVM startup options specified in process builder does not have any effect. I have confirmed this through prints in the JVM code base.
>>>>>
>>>>> For example,
>>>>> /hotspot/test/gc/g1/ TestEagerReclaimHumongousRegionsClearMarkBits.java modifies the "-XX:ConcGCThreads=1", but inside the JVM code to value of ConcGCThreads is still zero.
>>>>>
>>>>> I am new to jtreg and openjdk and probably missing something obvious. Your help would be much appreciated.
>>>>>
>>>>> Thanks in advance,
>>>>> Ramki
>>>>>
>>>>
>>>> Ramki,
>>>>
>>>> This does not look like an issue with jtreg, since the behavior you are apparently seeing is all within the test code and its libraries.
>>>>
>>>> You might want to follow up with the Hotspot team, who would have more familiarity with these tests and the associated libraries.
>>>>
>>>> -- Jon
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Thanks,
>>>> Ramki
>>>
>>>
>>>
>>>
>>> --
>>> Thanks,
>>> Ramki
>>
>>
>>
>>
>> --
>> Thanks,
>> Ramki
>
>
>
>
> --
> Thanks,
> Ramki
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