From: Eric Dumazet <eric.dumazet@gmail.com>
To: Denys Fedoryschenko <denys@visp.net.lb>
Cc: Stephen Hemminger <shemminger@vyatta.com>,
Jesper Dangaard Brouer <jdb@comx.dk>,
Robert Olsson <robert@herjulf.net>,
netdev@vger.kernel.org
Subject: Re: pktgen: tricks
Date: Thu, 24 Sep 2009 12:32:57 +0200 [thread overview]
Message-ID: <4ABB4AD9.50002@gmail.com> (raw)
In-Reply-To: <200909241310.05297.denys@visp.net.lb>
Denys Fedoryschenko a écrit :
> On Thursday 24 September 2009 03:41:41 Stephen Hemminger wrote:
>> Other kernel config help:
>> - turn off lock dependency checker, kmecheck, page alloc debug
>> basically anything that slows stuff down
>> - turn off content group scheduler
> Maybe, but i'm not sure (i can't test it):
> Disable randomize VA space? On embedded boards it was helping.
> In some case disabling SMP helped, when various SMP locks involved, but maybe
> not for pktgen.
>
>
pktgen is a kernel module, and is not affected by randomize VA space.
But of course, disabling SMP must help, as long as your machine needs
one cpu only :)
next prev parent reply other threads:[~2009-09-24 10:32 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-23 5:49 pktgen: tricks Stephen Hemminger
2009-09-24 0:41 ` Stephen Hemminger
2009-09-24 1:05 ` Rick Jones
2009-09-24 10:10 ` Denys Fedoryschenko
2009-09-24 10:32 ` Eric Dumazet [this message]
2009-09-30 23:03 ` [PATCH] pktgen: Avoid dirtying skb->users when txq is full Eric Dumazet
2009-10-01 0:25 ` Stephen Hemminger
2009-10-01 9:47 ` [PATCH] pktgen: Fix delay handling Eric Dumazet
2009-10-01 10:04 ` Eric Dumazet
2009-10-01 16:29 ` David Miller
2009-10-01 16:32 ` Eric Dumazet
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