From: "David S. Miller" <davem@davemloft.net>
To: mingo@elte.hu
Cc: heiko.carstens@de.ibm.com, hare@suse.de, linux-kernel@vger.kernel.org
Subject: Re: calibrate_migration_costs takes ages on s390
Date: Mon, 13 Feb 2006 12:57:58 -0800 (PST) [thread overview]
Message-ID: <20060213.125758.42483359.davem@davemloft.net> (raw)
In-Reply-To: <20060213105421.GB17173@elte.hu>
From: Ingo Molnar <mingo@elte.hu>
Date: Mon, 13 Feb 2006 11:54:21 +0100
> Do things get better if you fill out include/asm-sparc64/system.h's
> sched_cacheflush() function, to flush the L2 cache? That should at least
> make the cache state more or less reproducable across runs.
Yes, I tried to implement that, and it makes the migration cost
calculation take 4 to 5 times longer, so I'm leaving it unimplemented.
next prev parent reply other threads:[~2006-02-13 20:58 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-13 10:26 Heiko Carstens
2006-02-13 10:34 ` David S. Miller
2006-02-13 10:54 ` Ingo Molnar
2006-02-13 20:57 ` David S. Miller [this message]
2006-02-13 10:46 ` Ingo Molnar
2006-02-13 16:13 ` Heiko Carstens
2006-02-13 23:42 ` Olaf Hering
2006-02-14 0:08 ` Olaf Hering
2006-02-14 8:09 ` Heiko Carstens
2006-02-14 10:56 ` Heiko Carstens
2006-02-14 12:35 ` Ingo Molnar
2006-02-14 12:37 ` Ingo Molnar
2006-02-16 6:27 ` Heiko Carstens
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