From: Samium Gromoff <root@ibe.miee.ru>
To: linux-kernel@vger.kernel.org
Subject: NE2k driver issue
Date: Tue, 19 Feb 2002 16:18:38 +0300 (MSK) [thread overview]
Message-ID: <200202191318.g1JDIcm12054@ibe.miee.ru> (raw)
I`ve experienced a very strange relationship between
ISA sb card generated interrupts and network NIC perfomance.
The situation was the next: i`ve performed a data transfer from
a remote samba share to the local box thru a 10Mbit ISA NIC.
What has been varying was the interrupt load of the sound card.
With esd started the sound card generated 500-600 interrupts/second,
with no esd, it didnt generated interrupts.
Theoretically the sbcard interrupts should make the NIC starve
and reduce the NIC performance. But the situation i`ve experienced
was weird as hell.
With esd started the samba transfer maxes out at 400kb/s.
With esd stopped it immediately drops down to 30-35 kb/s.
This is also well reflected by the NIC interrupt rate cutting down
by 90% with esd stopped.
Info: linux-2.4.17-rmap12e, NE2k ISA NIC, SB16 Vibra ISA
regards, Samium Gromoff
next reply other threads:[~2002-02-19 10:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-19 13:18 Samium Gromoff [this message]
2002-02-19 10:46 ` Andreas Dilger
2002-02-19 11:03 ` Andrew Morton
2002-02-19 12:01 ` Alan Cox
2002-03-26 10:47 ` Samium Gromoff
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