Swap causing huge latency on disk IO operations

Sudharsan Vijayaraghavan sudvijayr at gmail.com
Sun Sep 10 01:56:14 EDT 2017

Hi Greg,

My general question is that has the community seen "swap latency issues
with disk IO" in general. Further can we assume that later kernels (like
4.4) does not exhibit such a behavior.


On Sun, Sep 10, 2017 at 10:32 AM, Greg KH <greg at kroah.com> wrote:

> On Sun, Sep 10, 2017 at 12:06:36AM +0530, Sudharsan Vijayaraghavan wrote:
> > Hi All,
> >
> > We are running a pretty (rather a very old kernel) 2.6.32. Nevertheless
> we do
> > see huge latency on disk IO once system starts using swap.
> That's your problem, 2.6.32 is _very_ old and obsolete.  No one in the
> community can help you out with that release anymore, sorry.
> Please go get support from the company that is forcing you to stay at
> such an old kernel version, as you are already paying them for that
> support.
> I strongly recommend you use a more modern kernel release, you will find
> that things should be _much_ better...
> good luck!
> greg k-h
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