From: William Lee Irwin III <wli@holomorphy.com>
To: linux-kernel@vger.kernel.org
Subject: 2.5.31 kmap_atomic copy_*_user benefits
Date: Thu, 15 Aug 2002 16:21:26 -0700 [thread overview]
Message-ID: <20020815232126.GR15685@holomorphy.com> (raw)
With and without kmap_atomic() -based copy_*_user() patches from akpm.
Taken on a 16x/16GB box.
Take 1: total throughput:
before:
Throughput 32.3019 MB/sec (NB=40.3774 MB/sec 323.019 MBit/sec) 512 procs
after:
Throughput 46.9837 MB/sec (NB=58.7296 MB/sec 469.837 MBit/sec) 512 procs
In the follow-ups I'll include oprofile numbers for each and vmstat logs.
Cheers,
Bill
next reply other threads:[~2002-08-15 23:19 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-15 23:21 William Lee Irwin III [this message]
2002-08-15 23:26 ` 2.5.31 kmap_atomic copy_*_user benefits William Lee Irwin III
2002-08-15 23:27 ` William Lee Irwin III
2002-08-15 23:30 ` William Lee Irwin III
2002-08-15 23:31 ` William Lee Irwin III
2002-08-15 23:35 ` William Lee Irwin III
2002-08-18 8:36 ` Daniel Phillips
2002-08-16 2:10 ` Dave Hansen
2002-08-16 2:44 ` William Lee Irwin III
2002-08-16 2:52 ` Dave Hansen
2002-08-16 6:33 ` Andrew Morton
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