Giant lock, bce and uhc using the same irq
Murat Balaban
murat at enderunix.org
Mon Nov 17 07:42:25 PST 2008
Hello hackers,
In one of my production servers (64-bit Intel Xeon machine) running
6.3-RELEASE-p4 (amd64) FreeBSD 6.3-RELEASE-p4 #0: Fri Sep 12 17:07:19
EEST 2008
I see this "top -S" output excerpt:
32 root 1 -68 -187 0K 16K *Giant 0 48.3H 3.08% irq17:
bce1 uhci1
What I get from above is that bce and uhc drivers both use irq17. I
assume
bce is SMPng'ed, and uhc is not.
Does uhc being Giant locked, affect bce performance, because they use
the same
interrupt handler thread?
--
Murat
http://www.enderunix.org/murat/
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