From: Ben Greear <greearb@candelatech.com>
To: "David S. Miller" <davem@redhat.com>
Cc: felix@allot.com, netdev@oss.sgi.com
Subject: Re: Ethernet bridge performance
Date: Thu, 07 Aug 2003 12:50:53 -0700 [thread overview]
Message-ID: <3F32AD9D.4010504@candelatech.com> (raw)
In-Reply-To: <20030807123547.1dcf2353.davem@redhat.com>
David S. Miller wrote:
> On Thu, 07 Aug 2003 09:57:14 -0700
> Ben Greear <greearb@candelatech.com> wrote:
>
>
>>Btw, I've considered saving, say, 10k skbs on a list in my module,
>>allocated by GFP_KERNEL at module load time, and using them when
>>GFP_ATOMIC skb_alloc fails in the IRQ handling portion of the code....
>>
>>Anyone think that's a good idea? :)
>
>
> Not really.
>
> GFP_ATOMIC should not fail regularly under normal (even heavy load)
> operation. If it does, it means the amount of reserved pages
> the kernel keeps around is not set correctly for your system.
>
> In 2.6.x, play with /proc/sys/vm/min_free_kbytes
Anything to set for 2.4? I've looked for how to tune the 2.4 VM for
some time, but never found anything.
Ben
--
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc http://www.candelatech.com
next prev parent reply other threads:[~2003-08-07 19:50 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-07 9:12 Ethernet bridge performance Felix Radensky
2003-08-07 15:59 ` Stephen Hemminger
2003-08-07 16:05 ` Felix Radensky
2003-08-07 16:57 ` Ben Greear
2003-08-07 17:19 ` Felix Radensky
2003-08-07 19:09 ` Robert Olsson
2003-08-07 19:21 ` jamal
2003-08-07 22:49 ` Robert Olsson
2003-08-10 7:32 ` Felix Radensky
2003-08-11 2:55 ` jamal
2003-08-11 7:52 ` Robert Olsson
[not found] ` <3F3601F3.6000001@allot.com>
2003-08-10 18:13 ` Ben Greear
2003-08-10 19:47 ` Andi Kleen
2003-08-10 21:49 ` Robert Olsson
2003-08-07 19:35 ` David S. Miller
2003-08-07 19:50 ` Ben Greear [this message]
2003-08-07 19:58 ` David S. Miller
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