Date: Fri, 28 Oct 2005 13:25:36 +0300 From: Pertti Kosunen <pertti.kosunen@pp.nic.fi> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: current@freebsd.org Subject: Re: Timers and timing, was: MySQL Performance 6.0rc1 Message-ID: <4361FCA0.8040403@pp.nic.fi> In-Reply-To: <30622.1130493370@critter.freebsd.dk> References: <30622.1130493370@critter.freebsd.dk>
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Poul-Henning Kamp wrote:
>Not apart from the CPU overhead.
>
> sysctl kern.timecounter.hardware
>
>is much more important.
>
>and all the reports here which fail to include it are mostly
>useless.
>
I have:
kern.timecounter.hardware: TSC
(
null function: 0.01060
getpid(): 0.41378
time(): 0.66705
gettimeofday(): 0.64459
FreeBSD 6.0-BETA5 #1: Sun Oct 9 13:09:23 EEST 2005
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD Athlon(TM)Processor (1009.95-MHz 686-class CPU)
)
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