From: "Kirill A. Shutsemov" <kirill@shutemov.name>
To: "Dmitry V. Levin" <ldv@altlinux.org>, Alexey Tourbin <at@altlinux.ru>
Cc: "Alexey I. Froloff" <raorn@altlinux.org>,
devel@lists.altlinux.org, Alexey Gladkov <legion@altlinux.ru>,
"Kirill A. Shutemov" <kirill@shutemov.name>
Subject: [devel] [PATCH 0/3] optimize rpmsetcmp()
Date: Fri, 26 Nov 2010 00:04:23 +0200
Message-ID: <1290722666-24606-1-git-send-email-kirill@shutemov.name> (raw)
From: Kirill A. Shutemov <kirill@shutemov.name>
Tested on Intel Core2 Duo P9500, 3GiB RAM. i586.
rpm-4.0.4-alt100.4:
Performance counter stats for 'apt-cache unmet' (10 runs):
3396.569863 task-clock-msecs # 1.000 CPUs ( +- 0.018% )
12 context-switches # 0.000 M/sec ( +- 9.296% )
5 CPU-migrations # 0.000 M/sec ( +- 21.414% )
9680 page-faults # 0.003 M/sec ( +- 0.002% )
8525321008 cycles # 2509.980 M/sec ( +- 0.016% ) (scaled from 33.34%)
7937229883 instructions # 0.931 IPC ( +- 0.041% ) (scaled from 50.00%)
1468168069 branches # 432.250 M/sec ( +- 0.014% ) (scaled from 49.99%)
257179182 branch-misses # 17.517 % ( +- 0.047% ) (scaled from 50.01%)
26275740 cache-references # 7.736 M/sec ( +- 0.114% ) (scaled from 33.35%)
350852 cache-misses # 0.103 M/sec ( +- 1.127% ) (scaled from 33.35%)
3.398038183 seconds time elapsed ( +- 0.018% )
rpm-4.0.4-alt100.4 + patchset:
Performance counter stats for 'apt-cache unmet' (10 runs):
2010.112427 task-clock-msecs # 1.000 CPUs ( +- 0.038% )
8 context-switches # 0.000 M/sec ( +- 17.232% )
4 CPU-migrations # 0.000 M/sec ( +- 21.237% )
9675 page-faults # 0.005 M/sec ( +- 0.005% )
5043579686 cycles # 2509.103 M/sec ( +- 0.041% ) (scaled from 33.32%)
5567840605 instructions # 1.104 IPC ( +- 0.021% ) (scaled from 50.00%)
1028369972 branches # 511.598 M/sec ( +- 0.016% ) (scaled from 50.00%)
94986026 branch-misses # 9.237 % ( +- 0.080% ) (scaled from 50.03%)
16227132 cache-references # 8.073 M/sec ( +- 0.303% ) (scaled from 33.36%)
323117 cache-misses # 0.161 M/sec ( +- 1.241% ) (scaled from 33.34%)
2.011050788 seconds time elapsed ( +- 0.044% )
Kirill A. Shutemov (3):
set.c: use packed bitmap for bit vector
set.c: optimize putbits()
set.c: optimize decode_golomb()
lib/set.c | 186 ++++++++++++++++++++++++++++++++++++++----------------------
1 files changed, 118 insertions(+), 68 deletions(-)
--
1.7.3.2
next reply other threads:[~2010-11-25 22:04 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-25 22:04 Kirill A. Shutsemov [this message]
2010-11-25 22:04 ` [devel] [PATCH 1/3] set.c: use packed bitmap for bit vector Kirill A. Shutsemov
2010-11-25 22:04 ` [devel] [PATCH 2/3] set.c: optimize putbits() Kirill A. Shutsemov
2010-11-25 22:04 ` [devel] [PATCH 3/3] set.c: optimize decode_golomb() Kirill A. Shutsemov
2010-11-26 8:35 ` [devel] [PATCH 0/3] optimize rpmsetcmp() Kirill A. Shutemov
2010-11-30 0:35 ` Dmitry V. Levin
2010-12-02 21:48 ` Dmitry V. Levin
2010-12-04 13:02 ` Alexey Tourbin
2010-12-04 16:30 ` Dmitry V. Levin
2010-12-04 16:55 ` Alexey Tourbin
2010-12-04 15:06 ` Alexey Tourbin
2010-12-04 16:29 ` Dmitry V. Levin
2010-12-04 16:42 ` Alexey Tourbin
2010-12-04 16:52 ` Dmitry V. Levin
2010-12-04 17:05 ` Alexey Tourbin
2010-12-04 17:52 ` Dmitry V. Levin
2010-12-04 21:28 ` Alexey Tourbin
2010-12-04 23:26 ` Dmitry V. Levin
2010-12-04 23:41 ` Alexey Tourbin
2010-12-05 0:03 ` Dmitry V. Levin
2010-12-05 0:21 ` Alexey Tourbin
2010-12-05 12:49 ` Michael Shigorin
2010-12-07 17:50 ` Dmitry V. Levin
2010-12-05 1:24 ` Alexey Tourbin
2010-12-05 11:18 ` Dmitry V. Levin
2010-12-05 12:39 ` Alexey Tourbin
2010-12-05 12:39 ` Michael Shigorin
2010-12-05 12:58 ` Alexey Tourbin
2010-12-05 15:27 ` Dmitry V. Levin
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