Subject: Suggestions on Avoiding syscall Overhead
From: Poul-Henning Kamp
Date: 4/24/2007 8:17:53 PM
In message <86r6q9hnbs.fsf@dwp.des.no>, Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?=
writes:
>des@des.no (Dag-Erling Sm=F8rgrav) writes:
>> gettimeofday(2) returns a value in microseconds, but this does not
>> necessarily mean that it has microsecond precision.
>
>s/precision/resolution/
Actually:
s/precision/& or resolution/
Can I recommend that you not try the timestamping functions first,
get something simple like uname(2) working first, then contact
me and I'll help you get timecounters involved.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk@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.
_______________________________________________
freebsd-current@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-current
To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"
|