From: roma1390 <roma1390@gmail.com>
To: Denys Vlasenko <vda.linux@googlemail.com>
Cc: linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Douglas W Jones <jones@cs.uiowa.edu>,
Michal Nazarewicz <mnazarewicz@google.com>
Subject: Re: [PATCH 0/1] vsprintf: optimize decimal conversion (again)
Date: Thu, 29 Mar 2012 08:23:44 +0300 [thread overview]
Message-ID: <4F73F1E0.7080803@gmail.com> (raw)
In-Reply-To: <201203281323.18194.vda.linux@googlemail.com>
On 2012.03.28 14:23, Denys Vlasenko wrote:
> It looks ok - it is a bit faster that original code;
> but I expect algorithm #2 will do better.
>
> BTW, please always run test of original code too when you measure speed,
> and post both results.
And the test results are:
./test_new-org-with-noinline_for_stack
Conversions per second: 8:5188000 123:4340000 123456:3536000 12345678:3164000
123456789:2036000 2^32:2032000 2^64:1544000
Conversions per second: 8:5016000 123:4320000 123456:3536000 12345678:3272000
123456789:2032000 2^32:1964000 2^64:1540000
Conversions per second: 8:5192000 123:4336000 123456:3420000 12345678:3268000
123456789:2036000 2^32:2032000 2^64:1544000
Conversions per second: 8:5164000 123:4336000 123456:3536000 12345678:3272000
123456789:1968000 2^32:2032000 2^64:1544000
Tested 524288 ^C
# ./test_new-org-with-noinline_for_stack_if-LONG_MAX_header_arm
Conversions per second: 8:5020000 123:4332000 123456:3536000 12345678:3272000
123456789:2828000 2^32:2260000 2^64:1536000
Conversions per second: 8:5192000 123:4332000 123456:3416000 12345678:3252000
123456789:2828000 2^32:2336000 2^64:1540000
Conversions per second: 8:5172000 123:4336000 123456:3540000 12345678:3272000
123456789:2736000 2^32:2336000 2^64:1536000
Conversions per second: 8:5192000 123:4192000 123456:3520000 12345678:3276000
123456789:2828000 2^32:2340000 2^64:1484000
Tested 524288 ^C
roma1390
next prev parent reply other threads:[~2012-03-29 5:24 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-26 18:47 [PATCH 0/1] vsprintf: optimize decimal conversion (again) Denys Vlasenko
2012-03-26 18:51 ` [PATCH 1/1] " Denys Vlasenko
2012-03-26 19:51 ` Andrew Morton
2012-03-26 19:56 ` Denys Vlasenko
2012-03-26 20:13 ` Andrew Morton
2012-03-26 20:18 ` Geert Uytterhoeven
2012-03-26 23:18 ` Denys Vlasenko
2012-03-27 0:30 ` Denys Vlasenko
2012-03-27 3:49 ` H. Peter Anvin
2012-03-26 20:20 ` H. Peter Anvin
2012-03-27 17:12 ` Michal Nazarewicz
2012-03-27 17:17 ` H. Peter Anvin
2012-03-27 0:26 ` Denys Vlasenko
2012-03-27 12:08 ` [PATCH 0/1] " roma1390
2012-03-27 15:32 ` Denys Vlasenko
2012-03-27 15:42 ` Denys Vlasenko
2012-03-28 5:56 ` roma1390
2012-03-28 10:13 ` Denys Vlasenko
2012-03-28 10:24 ` roma1390
2012-03-28 10:33 ` Denys Vlasenko
2012-03-28 10:39 ` roma1390
2012-03-28 11:20 ` Denys Vlasenko
2012-03-29 10:35 ` Denys Vlasenko
2012-03-28 10:31 ` roma1390
2012-03-28 11:23 ` Denys Vlasenko
2012-03-29 5:23 ` roma1390 [this message]
2012-03-29 10:33 ` Denys Vlasenko
2012-03-27 13:49 ` roma1390
2012-03-27 15:33 ` Denys Vlasenko
2012-03-29 5:16 ` roma1390
2012-03-29 10:33 ` Denys Vlasenko
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