Timers and timing, was: MySQL Performance 6.0rc1
Poul-Henning Kamp
phk at phk.freebsd.dk
Fri Oct 28 01:46:03 PDT 2005
In message <1130487786.4259.7.camel at massimo.datacode.it>, Massimo Lusetti write
s:
>For the records here is the result on a Linux kernel 2.6.12-1.1380_FC3
>(Fedora Core 3) on a P4 1.8G
>
> null function: 0.00947
> getpid(): 0.00988
> time(): 3.80196
> gettimeofday(): 4.04731
That is actually an interesting result because it could indicate
that RH is not too happy about the fast&loose timekeeping in the
default Linux kernel...
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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