<div dir="ltr"><div class="gmail_default" style="font-family:courier new,monospace">Hi Dima,<br><br></div><div class="gmail_default" style="font-family:courier new,monospace">Thanks.<br><br></div><div class="gmail_default" style="font-family:courier new,monospace">I tried your suggestion and also examined the .jtr file in JTWork/gc/g1/ folder. I am getting the same results as before.<br><br></div><div class="gmail_default" style="font-family:courier new,monospace">Thanks,<br></div><div class="gmail_default" style="font-family:courier new,monospace">Ramki<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 18, 2017 at 8:12 AM, Dmitry Fazunenko <span dir="ltr"><<a href="mailto:dmitry.fazunenko@oracle.com" target="_blank">dmitry.fazunenko@oracle.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF">
Hi Ramki,<br>
<br>
I think you need to specify "-jdk:<your_java_home>" option to
jtreg:<br>
<br>
/home/ramki/9dev/build/linux-<wbr>x86_64-normal-server-release/<wbr>images/jdk/bin/java
-jar /home/ramki/jtreg/lib/jtreg.<wbr>jar -verbose:all <b>-jdk:/home/ramki/9dev/build/<wbr>linux-x86_64-normal-server-<wbr>release/images/jdk</b>
/home/ramki/9dev/hotspot/test/<wbr>gc/g1/<wbr>TestEagerReclaimHumongousRegio<wbr>nsClearMarkBits.java
<br>
<br>
More information about test execution you can find in the .jtr file
created in <div style="font-family:courier new,monospace;display:inline" class="gmail_default"></div>JTWork/gc/g1/ folder.<br>
<br>
Thanks,<br>
Dima<br>
<br>
<br>
<br>
<div class="gmail-m_-195160196713425840moz-cite-prefix">On 18.04.2017 17:56, Ram Krishnan
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div style="font-family:courier new,monospace">Hi Dmitry,<br>
<br>
Thanks, more below. <br>
<br>
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?<br>
<br>
Using jtreg directly does not work <br>
------------------------------<wbr>----<br>
/home/ramki/9dev/build/linux-<wbr>x86_64-normal-server-release/<wbr>images/jdk/bin/java
-jar /home/ramki/jtreg/lib/jtreg.<wbr>jar -verbose:all
/home/ramki/9dev/hotspot/test/<wbr>gc/g1/<wbr>TestEagerReclaimHumongousRegio<wbr>nsClearMarkBits.java
<br>
<br>
</div>
<div style="font-family:courier new,monospace">Command line option works<br>
</div>
<div style="font-family:courier new,monospace">-------------------------<br>
/home/ramki/9dev/build/linux-<wbr>x86_64-normal-server-release/<wbr>images/jdk/bin/java
-cp
/home/ramki/9dev/hotspot/test/<wbr>JTwork/classes/gc/g1:/home/<wbr>ramki/9dev/hotspot/test/gc/g1:<wbr>/home/ramki/9dev/hotspot/test/<wbr>JTwork/classes/test/lib:/home/<wbr>ramki/9dev/test/lib:/home/<wbr>ramki/jtreg/lib/javatest.jar:/<wbr>home/ramki/jtreg/lib/jtreg.jar
-XX:+UseG1GC -Xms128M -Xmx128M -Xmn2M -XX:G1HeapRegionSize=1M
-XX:<wbr>InitiatingHeapOccupancyPercent<wbr>=0 -Xlog:gc
-XX:+UnlockDiagnosticVMOptions -XX:+VerifyAfterGC
-XX:ConcGCThreads=1 -XX:+<wbr>IgnoreUnrecognizedVMOptions
-XX:+G1VerifyBitmaps -XX:<wbr>G1GcCpuLLCCachePartitionPercen<wbr>t=48
ReclaimRegionFast<br>
<br>
</div>
<div style="font-family:courier new,monospace">Thanks,<br>
</div>
<div style="font-family:courier new,monospace">Ramki<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, Apr 17, 2017 at 11:21 PM,
Dmitry Fazunenko <span dir="ltr"><<a href="mailto:dmitry.fazunenko@oracle.com" target="_blank">dmitry.fazunenko@oracle.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF"> Hi Ramki,<br>
<br>
It's very unlikely to be an issue related to jtreg
somehow.<br>
I ran the test you mentioned manually, this is the quote
from .jtr file:<br>
...<br>
Command line: [/jdk9/solaris-sparcv9/bin/jav<wbr>a -d64
-cp
/home/fa/hs-int/hotspot/test/g<wbr>c/g1/JTwork/classes/gc/g1:/hom<wbr>e/fa/hs-int/hotspot/test/gc/<wbr>g1:/home/fa/hs-int/hotspot/tes<wbr>t/gc/g1/JTwork/classes/test/<wbr>lib:/home/fa/hs-int/test/lib:/<wbr>home/fa/jtreg/lib/javatest.<wbr>jar:/home/fa/jtreg/lib/jtreg.<wbr>jar
-XX:+UseG1GC -Xms128M -Xmx128M -Xmn2M
-XX:G1HeapRegionSize=1M -XX:InitiatingHeapOccupancyPer<wbr>cent=0
-Xlog:gc -XX:+UnlockDiagnosticVMOptions
-XX:+VerifyAfterGC <b>-XX:ConcGCThreads=1</b> -XX:+IgnoreUnrecognizedVMOptio<wbr>ns
-XX:+G1VerifyBitmaps
<div></div>
ReclaimRegionFast ]<br>
...<br>
All the VM options are passed as expected.<br>
<br>
> I have confirmed this through prints in the JVM
code base.<br>
I'm not sure what do you mean here, but I guess you did
something wrong.<br>
<br>
Please note, during execution of this test two JVM are
launched:<br>
- the first one started by jtreg (<span id="gmail-m_-195160196713425840gmail-m_6845836460534788464l115">TestEagerReclaimHumongousRegi<wbr>onsClearMarkBits
class)<br>
- the second started by test (</span><span id="gmail-m_-195160196713425840gmail-m_6845836460534788464l51">ReclaimRegionFast
class)</span><br>
<br>
In the first one
<div></div>
ConcGCThread should be set to 0.<br>
<br>
Thanks,<br>
Dima<br>
<br>
<div class="gmail-m_-195160196713425840gmail-m_6845836460534788464moz-cite-prefix">On
18.04.2017 3:09, Ram Krishnan wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div style="font-family:courier new,monospace">Hi
Jenny,<br>
<br>
</div>
<div style="font-family:courier new,monospace">I
tried what you suggested. Hotspot output indeed
shows ConcGCThreads as 1.<br>
<br>
</div>
<div style="font-family:courier new,monospace">The
problem seems to be interaction with jtreg.<br>
</div>
<div style="font-family:courier new,monospace"><br>
</div>
<div style="font-family:courier new,monospace">Thanks,<br>
</div>
<div style="font-family:courier new,monospace">Ramki<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, Apr 17, 2017 at
4:49 PM, Jenny Zhang <span dir="ltr"><<a href="mailto:yu.zhang@oracle.com" target="_blank">yu.zhang@oracle.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF"> Ramki,<br>
<br>
Can you do the following to be sure that
hotspot did not take the parameter?<br>
java -XX:
<div></div>
ConcGCThreads=1 -XX:+PrintFlagsFinal<br>
<br>
I am using jdk9b154, the output shows it
changed the ConcGCThreads to 1<br>
<br>
Thanks<br>
Jenny<br>
<br>
<div class="gmail-m_-195160196713425840gmail-m_6845836460534788464gmail-m_-1427578904799488884moz-cite-prefix">On
4/17/2017 4:33 PM, Ram Krishnan wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div style="font-family:courier new,monospace">Many thanks Jonathan
for the immediate reply. <br>
<br>
I am copying the hotspot gc team.<br>
<br>
</div>
<div style="font-family:courier new,monospace">Hotspot gc team -- your
help would be much appreciated on the
topic below.<br>
</div>
<div style="font-family:courier new,monospace"><br>
</div>
<div style="font-family:courier new,monospace">Thanks,<br>
</div>
<div style="font-family:courier new,monospace">Ramki<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, Apr
17, 2017 at 2:29 PM, Jonathan
Gibbons <span dir="ltr"><<a class="gmail-m_-195160196713425840gmail-m_6845836460534788464gmail-m_-1427578904799488884moz-txt-link-abbreviated" href="mailto:jonathan.gibbons@oracle.com" target="_blank">jonathan.gibbons@oracle.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF"> <br>
<br>
<div class="gmail-m_-195160196713425840gmail-m_6845836460534788464gmail-m_-1427578904799488884m_7592252218846305182m_7329919051798114277moz-cite-prefix">On
04/17/2017 02:18 PM, Ram
Krishnan wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div style="font-family:courier new,monospace">Hi,<br>
<br>
</div>
<div style="font-family:courier new,monospace">I have been
able to successfully run
all the tests in
hotspot/test/gc/g1 using
jtreg.<br>
<br>
</div>
<div style="font-family:courier new,monospace">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.<br>
<br>
</div>
<div style="font-family:courier new,monospace">For
example, <br clear="all">
</div>
<div>/hotspot/test/gc/g1/
TestEagerReclaimHumongousRegio<wbr>nsClearMarkBits.java modifies the
"-XX:ConcGCThreads=1", but
inside the JVM code to
value of ConcGCThreads is
still zero.<br>
</div>
<br>
<div>I am new to jtreg and
openjdk and probably
missing something obvious.
Your help would be much
appreciated. <br>
<br>
Thanks in advance,</div>
<div>Ramki</div>
<br>
</div>
</blockquote>
<br>
Ramki,<br>
<br>
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.<br>
<br>
You might want to follow up with
the Hotspot team, who would have
more familiarity with these
tests and the associated
libraries.<br>
<br>
-- Jon<br>
<br>
</div>
</blockquote>
</div>
<br>
<br clear="all">
<span class="gmail-m_-195160196713425840gmail-HOEnZb"><font color="#888888"> <span class="gmail-m_-195160196713425840gmail-m_6845836460534788464gmail-HOEnZb"><font color="#888888"> <br>
-- <br>
<div class="gmail-m_-195160196713425840gmail-m_6845836460534788464gmail-m_-1427578904799488884m_7592252218846305182gmail_signature">
<div dir="ltr">Thanks,
<div>Ramki<br>
</div>
</div>
</div>
</font></span></font></span></div>
<span class="gmail-m_-195160196713425840gmail-HOEnZb"><font color="#888888"> </font></span></div>
<span class="gmail-m_-195160196713425840gmail-HOEnZb"><font color="#888888"> </font></span></blockquote>
<span class="gmail-m_-195160196713425840gmail-HOEnZb"><font color="#888888"> <br>
</font></span></div>
<span class="gmail-m_-195160196713425840gmail-HOEnZb"><font color="#888888"> </font></span></blockquote>
<span class="gmail-m_-195160196713425840gmail-HOEnZb"><font color="#888888">
</font></span></div>
<span class="gmail-m_-195160196713425840gmail-HOEnZb"><font color="#888888">
<br>
<br clear="all"><span class="gmail-HOEnZb"><font color="#888888">
<br>
-- <br>
<div class="gmail-m_-195160196713425840gmail-m_6845836460534788464gmail_signature">
<div dir="ltr">Thanks,
<div>Ramki<br>
</div>
</div>
</div>
</font></span></font></span></div><span class="gmail-HOEnZb"><font color="#888888">
</font></span></div><span class="gmail-HOEnZb"><font color="#888888">
</font></span></blockquote><span class="gmail-HOEnZb"><font color="#888888">
<br>
</font></span></div><span class="gmail-HOEnZb"><font color="#888888">
</font></span></blockquote><span class="gmail-HOEnZb"><font color="#888888">
</font></span></div><span class="gmail-HOEnZb"><font color="#888888">
<br>
<br clear="all">
<br>
-- <br>
<div class="gmail-m_-195160196713425840gmail_signature">
<div dir="ltr">Thanks,
<div>Ramki<br>
</div>
</div>
</div>
</font></span></div>
</div>
</blockquote>
<br>
</div>
</blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature"><div dir="ltr">Thanks, <div>Ramki<br></div></div></div>
</div></div>