Re: [Re: paging behavior in Linux]

Helge Hafting (helgehaf@idb.hist.no)
Thu, 01 Mar 2001 10:37:40 +0100


Neelam Saboo wrote:
>
> Another observation. I have two independent programs. One program incurring
> page faults and another program just doing some work.
> When work program run undependently it takes ~19 seconds of CPU time, but when
> it is run along with page faulting program on the same machine, it takes ~32
> seconds of CPU time. Doesnt this indicate that page faults in a program slows
> down all the program on the machine and not only threads in the same process
> ?
Is this really CPU time or merely wall clock time? The latter will
obviously increase as running two programs takes more time than running
one.

Helge Hafting
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