From: "David S. Miller" <davem@redhat.com>
To: Ben Greear <greearb@candelatech.com>
Cc: felix@allot.com, netdev@oss.sgi.com
Subject: Re: Ethernet bridge performance
Date: Thu, 7 Aug 2003 12:35:47 -0700 [thread overview]
Message-ID: <20030807123547.1dcf2353.davem@redhat.com> (raw)
In-Reply-To: <3F3284EA.5050406@candelatech.com>
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
next prev parent reply other threads:[~2003-08-07 19:35 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 [this message]
2003-08-07 19:50 ` Ben Greear
2003-08-07 19:58 ` David S. Miller
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