Re: gettimeofday() in hping

Greetings,

Dag-Erling Sm=C3=B8rgrav wrote:
> Dag-Erling Sm=C3=B8rgrav <[e-mail]> writes:
>  =20
>> Stefan Lambrev <[e-mail]> writes:
>>    =20
>>> I tried clock_gettime() (using CLOCK_REALTIME for clock_id), but this=

>>> yield worse performance.
>>>      =20
>> Try CLOCK_MONOTONIC instead.
>>    =20
>
> I forgot - there are also the FreeBSD-specific CLOCK_REALTIME_FAST and
> CLOCK_MONOTONIC_FAST if you can live with a little bit of jitter.
>
> DES
>  =20
Thanks for your reply.
I tested all different combination. The performance change is almost=20
invisible (100-200KB/s),
and can't be compared with the performance boost that TSC gain over=20
ACPI-fast timecounter.
Unfortunately TSC doesn't play nice with power saving modes.

--=20

Best Wishes,
Stefan Lambrev
ICQ# 24134177


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