From: Andi Kleen <andi@firstfloor.org>
To: Eric Dumazet <dada1@cosmosbay.com>
Cc: Andi Kleen <andi@firstfloor.org>,
"David S. Miller" <davem@davemloft.net>,
Linux Netdev List <netdev@vger.kernel.org>
Subject: Re: [PATCH] NET : rt_check_expire() can take a long time, add a cond_resched()
Date: Sat, 17 Nov 2007 22:46:40 +0100 [thread overview]
Message-ID: <20071117214640.GA16314@one.firstfloor.org> (raw)
In-Reply-To: <473F1589.9080101@cosmosbay.com>
> The 25.000.000 ns and 88.000.000 ns numbers where on an empty table, but
> large (16 MB of memory)
This would mean that cond_resched() needs ~4x as much time as checking
an empty bucket. I find that somewhat hard to believe.
-Andi
next prev parent reply other threads:[~2007-11-17 21:46 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-14 21:34 [PATCH] NET : rt_check_expire() can take a long time, add a cond_resched() Eric Dumazet
2007-11-15 0:13 ` David Miller
2007-11-15 7:30 ` Andi Kleen
2007-11-15 7:37 ` Herbert Xu
2007-11-15 8:25 ` Eric Dumazet
2007-11-15 8:57 ` David Miller
2007-11-17 13:08 ` Andi Kleen
2007-11-17 16:23 ` Eric Dumazet
2007-11-17 21:46 ` Andi Kleen [this message]
2007-11-18 0:27 ` David Miller
2007-11-15 8:52 ` David Miller
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