Re: ~500 megs cached yet 2.6.5 goes into swap hell

[Brett E.]

Brett E. wrote:

> Andrew Morton wrote:
>
> > "Brett E." <brettspamacct@xxxxxxxxxxxxx> wrote:
> >
> > > > I see no swapout from the info which you sent.
> > >
> > >
> > > pgpgout/s gives the total number of blocks paged out to disk per 
> > > second, it peaks at 13,000 and hovers around 3,000 per the attachment.
> >
> >
> >
> > Nope.  pgpgout is simply writes to disk, of all types.
>
> That is what is confusing me.. From the sar man page:
>
> pgpgin/s
>     Total number of kilobytes the system paged in from disk per second.
>
> pgpgout/s
>     Total number of kilobytes the system paged out to disk per second.
Anyone know what I should believe?  Sar's pgpgin/s and pgpgout/s tell me 
 that it is paging in/out from/to disk.  Yet pswpin/s and pswpout/s are 
both 0.  Swapping and paging are the same thing I believe. pgpgin/out 
refer to paging, pswpin/out refer to swapping.  So I for one am confused.

I guess I could dig through the source but I figured someone might have 
encountered this disrepency in the past.


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