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Message-ID: <CAK1hOcO7OOEJyEev+5u++piQSU6fW49wEzMagaCoX5_BzvJ=ag@mail.gmail.com> Date: Tue, 27 Mar 2012 17:33:55 +0200 From: Denys Vlasenko <vda.linux@...glemail.com> To: roma1390 <roma1390@...il.com> Cc: linux-kernel@...r.kernel.org, Andrew Morton <akpm@...ux-foundation.org>, Douglas W Jones <jones@...uiowa.edu>, Michal Nazarewicz <mnazarewicz@...gle.com> Subject: Re: [PATCH 0/1] vsprintf: optimize decimal conversion (again) On Tue, Mar 27, 2012 at 3:49 PM, roma1390 <roma1390@...il.com> wrote: > Hi Denys, > > Can't compare speed to base, but I tested this test_new on > 2.6.32-5-kirkwood #1 Tue Jan 17 05:11:52 UTC 2012 armv5tel GNU/Linux > ./test_new > Conversions per second: 8:5528000 123:4568000 123456:3568000 > 12345678:3392000 123456789:1168000 2^32:976000 2^64:532000 > Conversions per second: 8:5524000 123:4568000 123456:3680000 > 12345678:3408000 123456789:1132000 2^32:972000 2^64:532000 > Conversions per second: 8:5028000 123:4416000 123456:3688000 > 12345678:3396000 123456789:1168000 2^32:976000 2^64:512000 > Conversions per second: 8:5524000 123:4572000 123456:3684000 > 12345678:3288000 123456789:1168000 2^32:972000 2^64:532000 > Tested 900988928 ^Z Thanks, but without baseline, it's impossible to see whether we have an improvement... Can you also let it run longer, to test at least up to first 5 billion numbers (which is > 2^32)? -- vda -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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