Re: Timers and timing, was: MySQL Performance 6.0rc1

From: Pertti Kosunen <pertti.kosunen_at_pp.nic.fi>
Date: Fri, 28 Oct 2005 13:25:36 +0300
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)
)
Received on Fri Oct 28 2005 - 08:25:39 UTC

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