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Article #12179Re: QueryPerformanceFrequency
From: John Herbster TeamB
Date: Fri, 22 Nov 2002 22:41
Date: Fri, 22 Nov 2002 22:41
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"David J Taylor" <davidtaylor@writeme.com> wrote > > For performance measures, though, RDTSC is the better thing to use. > > Why? (1) RDTSC has higher resolution. (2) RDTSC requires fewer cycles to fetch readings. (3) Clock cycles are easier (for me) to relate to machine instruction times than are nanoseconds. --JohnH
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f94dd,64862bd85e1470d9 X-Google-Attributes: gidf94dd,public X-Google-ArrivalTime: 2002-11-22 15:18:07 PST From: "John Herbster \(TeamB\)" <herb-sci at novus-tele.net> Newsgroups: borland.public.delphi.nativeapi References: <3dddc45c@newsgroups.borland.com> <ha0stuk5f8isgsi777lr94gsumngrtpo3d@4ax.com> <3dde611f@newsgroups.borland.com> <3ddeb081$1@newsgroups.borland.com> Subject: Re: QueryPerformanceFrequency Date: Fri, 22 Nov 2002 14:41:45 -0800 Lines: 13 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.50.4807.1700 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4910.0300 NNTP-Posting-Host: 64.69.92.32 Message-ID: <3ddeb2b6$1@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1038004918 64.69.92.32 (22 Nov 2002 14:41:58 -0800) Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!sn-xit-03!sn-xit-01!sn-xit-08!supernews.com!newshosting.com!news-xfer1.atl.newshosting.com!fu-berlin.de!news.uni-x.net!newsgroups.borland.com!not-for-mail