From: Parag Warudkar <kernel-stuff@comcast.net>
To: puneet_kaushik@persistent.co.in
Subject: Re: Needed faster implementation of do_gettimeofday()
Date: Sun, 20 Feb 2005 10:48:00 -0500
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On Sunday 20 February 2005 05:58 am, puneet_kaushik@persistent.co.in 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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