From: P@draigBrady.com
To: Andi Kleen <ak@muc.de>
Cc: netdev@oss.sgi.com
Subject: Re: [PATCH] Avoid gettimeofday when not needed
Date: Wed, 31 Mar 2004 13:22:14 +0100 [thread overview]
Message-ID: <406AB7F6.6010805@draigBrady.com> (raw)
In-Reply-To: <200403311201.i2VC13D19579@zero.aec.at>
Andi Kleen wrote:
> This patch implements an optimization I proposed a long time
> ago. gettimeofday can be quite costly and it currently is
> on the fast path of every packet. Normally the packet time stamp
> is not needed (e.g. TCP doesn't use it), except for tcpdump
> and a few applications.
Will this work for apps that don't use a seperate syscall
to get the timestamp. Like CONFIG_PACKET_MMAP for e.g?
Pádraig.
next prev parent reply other threads:[~2004-03-31 12:22 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-31 12:01 [PATCH] Avoid gettimeofday when not needed Andi Kleen
2004-03-31 12:22 ` P [this message]
2004-03-31 13:53 ` Andi Kleen
2004-03-31 13:45 ` Ville Nuorvala
2004-03-31 13:54 ` Andi Kleen
2004-03-31 14:24 ` Ville Nuorvala
2004-03-31 15:10 ` Andi Kleen
2004-03-31 17:30 ` Ben Greear
2004-03-31 17:50 ` Andi Kleen
2004-03-31 18:53 ` Ben Greear
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