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Re: [cross-project-issues-dev] Builds consuming all CPU
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Thomas,
I apologize. I've been meaning to look into the usage of 'nice', and try
to figure out the effect, and if it applied to the builds that get
kicked off in my name by cron, but hadn't yet.
I was also unfamiliar with the 'top' command (thanks - btw).
I'm currently testing an updated crontab entry. If it works, I'll update
the entry for the nightly builds as well (since there are folks awake
when most of North America sleeps). While investigating this, I've
noticed and killed a few hung/orphaned processes of 'mine' as well.
I'm wondering if one of them may have been a culprit, since the one
scheduled continuous build isn't really Continuous. It kicks off checks
to see if the code changed hourly, if not (most often the case) it
exits, if so the build and tests take about 15 minutes. However, in the
case where it does do a build niceness should apply (and now does - I
think).
-Eric
Thomas Hallgren wrote:
Over the last couple of weeks, I've done a 'top' from time to time
when I feel that my builds take longer then they should. Very often, I
see this at the top:
12252 egwin 20 0 668m 168m 11m S 115 1.1 0:09.27 java
A hint to egwin and others that run very heavy builds. The message of
the day on the build machine states:
"If you run continuous builds, you should start your shell processes
with nice -n 10 (command) to be kind to others."
Another entry that isn't that uncommon at the top is:
29702 hudsonbu 17 0 584m 101m 7372 R 124 0.7 0:25.09 java
which of course raises the question, why isn't Hudson running its jobs
with nice -10?
The jarsigner seems to be one of the few that actually does this, and
my builds always waits _very_ long times for it to complete.
Regards,
Thomas Hallgren
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--
-Eric
Oracle <http://www.oracle.com>
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