Date: Fri, 11 Aug 2000 18:46:39 -0700 (PDT) From: xyf@stocke.com To: freebsd-gnats-submit@FreeBSD.org Subject: misc/20555: 3C509 driver performance problem Message-ID: <20000812014639.CED7A37B511@hub.freebsd.org>
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>Number: 20555
>Category: misc
>Synopsis: 3C509 driver performance problem
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Aug 11 18:50:01 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator: xuyifeng
>Release: FreeBSD 4.0
>Organization:
stocke.com
>Environment:
>Description:
I just freshly installed Redhat Linux 6.2 and FreeBSD 4.0 on same
machine, I run ApacheBench program ab on another
Linux machine to test the both OS, both OS have same Apache config options, using command:
ab -c 10 -n 10000 http://192.168.1.27/index.html
they both give me good performance, the result is almost same, but ...
FreeBSD uses more CPU time than Linux, FreeBSD CPU idle is 40%,
Linux CPU idle is 60%, almost 20% CPU lost in FreeBSD!
I use "top" command and see FreeBSD cost 34% of CPU time in interrupt
handling, the system time is good, only 12%, my net card is old 3COM 3C509, my question is:
is this the problem of 3C509 driver in FreeBSD or just is more serious FreeBSD design problem?
>How-To-Repeat:
from another machine run apache benchmark program to pull FreeBSD,
ab -c 10 -n 10000 http://192.168.1.27/index.html
>Fix:
don't kown
>Release-Note:
>Audit-Trail:
>Unformatted:
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