[LTP] [PATCH] swapping: replace mem_free by mem_available
Li Wang
liwang@redhat.com
Mon Aug 1 09:36:31 CEST 2016
On Mon, Aug 01, 2016 at 03:15:14AM -0400, Jan Stancek wrote:
>
> ----- Original Message -----
> >
> > How much should the X defined?
>
> I'd say at least 10 as with original testcase.
>
> >
> > > i++;
> > > swapped = read_meminfo("SwapFree:");
> > > sleep(1);
> > > if (abs(swapped - read_meminfo("SwapFree:")) < 512)
> >
> > Why set the limitation as 512? why not 1024 or others?
>
> I picked that by rule of thumb, the value should be smaller
> than what any system can write to swap within 1s. But if we
> go too low then some noise from background processes could be
> falsely recognized as swap usage.
Ok, thanks for the explanaiton. Patch V2 is coming.
Regards,
Li Wang
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