From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Tiemen Schut <tschut@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Kernel drops ethernet packets during disk writes
Date: Tue, 05 Sep 2006 18:15:12 +0100 [thread overview]
Message-ID: <1157476512.9018.85.camel@localhost.localdomain> (raw)
In-Reply-To: <86b122f40609050906u7aafe808h5002c9f15369a744@mail.gmail.com>
Ar Maw, 2006-09-05 am 18:06 +0200, ysgrifennodd Tiemen Schut:
> Summary: The linux kernel appears to drop raw ethernet packets if
> another process is writing to disk.
No suprise.
1Gbit is a bit over 100Mbyte/second
Thats from the card over PCI to memory
Then over PCI from memory to the disk controller
We are up to 200Mbytes/second
Best case performance for a 32bit PCI bus is 133Mbytes/second and you
won't get close to that. Even if both devices are PCI 66Mhz you are
right on the bus limit.
And if its an earlyish PIV what is your main memory bandwidth ?
next prev parent reply other threads:[~2006-09-05 16:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <86b122f40609050815v664ff217kcfc82a5c9f2772ad@mail.gmail.com>
2006-09-05 16:06 ` Tiemen Schut
2006-09-05 17:15 ` Alan Cox [this message]
[not found] ` <44FDCEB2.6070500@degler.net>
2006-09-05 20:21 ` Tiemen Schut
2006-09-06 12:40 ` Tiemen Schut
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