Re: Needed faster implementation of do_gettimeofday()

From: Parag Warudkar
Date: Sun Feb 20 2005 - 10:49:22 EST


On Sunday 20 February 2005 05:58 am, puneet_kaushik@xxxxxxxxxxxxxxxx wrote:
> 985913    8.6083  vmlinux                  mark_offset_tsc
> 584473    5.1032  libc-2.3.2.so            getc

What makes you think mark_offset_tsc is slow? Do you have any comparative
numbers? It might just be that the workload you are throwing at it justifies
it. (For e.g. if your workload does a zillion system calls, system_call will
show up as a hot spot in oprofile - doesn't necessarily mean it is slow -
it's just overused.) Can you post the relevant code?

Parag
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