From: erik quanstrom <quanstro@quanstro.net>
To: 9fans@9fans.net
Subject: [9fans] load average sometimes wrong
Date: Sat, 20 Nov 2010 13:04:44 -0500 [thread overview]
Message-ID: <aa370d6ae43dd94fa86a5a535ada6e30@brasstown.quanstro.net> (raw)
on some of my faster machines, the load average is often quite wrong
when there is a single process using a full cpu. for example, the load
average on this machine is 1.000 but sysstat claims it is 0.002.
chula; 8.burncycles & sleep 60
chula; cat /dev/sysstat
0 16041 1216771 646 305 0 0 2 99 0
1 30658 1073202 13566 335 0 0 0 99 0
2 19686 1069572 2433 1294 0 0 0 99 0
3 19441 1070607 1160 311 0 0 0 99 0
4 22342 1071838 2210 1068 0 0 0 99 0
5 14647 1133929 28 22 0 0 0 99 0
6 18757 1070358 1576 208 0 0 0 99 0
7 20882 1071157 6222 5636 0 0 0 4 0
starting a second cpu-hogging process will make the load average 2.000.
- erik
reply other threads:[~2010-11-20 18:04 UTC|newest]
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