Oskar Pearson <oskar@is.co.za> writes:
> Hi
> 
> I run: strace -o squid.out -p 28554 -T
> and then push it though Michael's script:
> 
>          System call Count   Total time  Time per call  % total
>            getrusage     3       0.0004     0.000149    0.00031
>                fcntl    10       0.0012     0.000120    0.00083
>                 open    10       0.0030     0.000304    0.00211
>         gettimeofday   158       0.0193     0.000122    0.01342
>                close    10       0.0213     0.002130    0.01478
>             getdents    20       0.1009     0.005043    0.07000
>                write   603       0.1183     0.000196    0.08212
>                 stat    10       0.3404     0.034043    0.23626
>            oldselect   159     143.4838     0.902414    99.58017
> Total time elapsed: 144.088741
Remember than my script it measuring wall clock time, not CPU. So
these numbers are exactly what you'd expect: squid would spend most of
it's time sleeping in select().
 
> Now this squid is completely idle... any idea why it's going moggy about with
> the CPU? My machine has no idle CPU when I run it, so I guess things aren't
> wonderful..
Check to see if it's the main thread burning CPU, or one of the child
threads...
Michael.
Received on Tue Jul 29 2003 - 13:15:46 MDT
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