Re: [xml] gethrtime and *Timer

[Daniel Veillard <veillard redhat com>]

On Tue, Mar 15, 2005 at 11:58:53AM -0800, Rick Jones wrote:
> I'm not at all sure that gettimeofday() overhead is an issue for libxml2, 
> but thought I'd point-out (at the risk of bringing-up something already 
> discussed) that a number of platforms seem to have a lighter-weight 
> gethrtime() call that can be used to time things.
>
> I suppose that as I get farther along with netperf4 I may see if 
> gettimeofday() overhead is indeed an issue.

There is an even simpler way to check:

  grep gettimeofday *.c
    -> testSAX.c and xmllint.c

I really don't think it's a library issue it's only used by CLI tools
front end.
For performance analysis I usually do top down, i.e. run and then 
check the majors offenders for said run.

Daniel

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