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Ramki,<br>
<br>
jtreg is not involved at that point in time. It has launched the
test, and the test code is running. <br>
<br>
When you say "I have confirmed this through prints in the JVM code
base.", are you sure you are checking the right JVM? There are at
least 3 JVMs running at the same time in your setup: you have a JVM
running jtreg; you have a JVM running the test, and the test is
launching a JVM of its own through the ProcessTools library. <br>
<br>
-- Jon<br>
<br>
<div class="moz-cite-prefix">On 04/17/2017 05:09 PM, Ram Krishnan
wrote:<br>
</div>
<blockquote
cite="mid:CAKOuegCK0vDhv4jXvSM-mNSe8=0kqLXUPueYhRDwiJX6qQ6kkw@mail.gmail.com"
type="cite">
<div dir="ltr">
<div class="gmail_default" style="font-family:courier
new,monospace">Hi Jenny,<br>
<br>
</div>
<div class="gmail_default" style="font-family:courier
new,monospace">I tried what you suggested. Hotspot output
indeed shows ConcGCThreads as 1.<br>
<br>
</div>
<div class="gmail_default" style="font-family:courier
new,monospace">The problem seems to be interaction with jtreg.<br>
</div>
<div class="gmail_default" style="font-family:courier
new,monospace"><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 Mon, Apr 17, 2017 at 4:49 PM,
Jenny Zhang <span dir="ltr"><<a moz-do-not-send="true"
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 style="font-family:courier
new,monospace;display:inline" class="gmail_default"></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_-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
moz-do-not-send="true"
class="gmail-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_-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-HOEnZb"><font color="#888888">
<br>
-- <br>
<div
class="gmail-m_-1427578904799488884m_7592252218846305182gmail_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>
</blockquote>
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