Initial request to server extremely slow after longer periods of inactivity

Raimund Sacherer rs at
Wed Apr 15 13:25:10 UTC 2015

> Hi!

> On 13. april 2015 at 9:33 AM, "Raimund Sacherer" <rs at> wrote:
> >
> >Yes, that could be, but you would be able to rule it out rather
> >quickly, if you do not seem to get the system in the
> >"unresponsive" state then I would execute them in a screen or tmux
> >session so they are available for you to check out later. In this
> >case a top won't do you much good and you have to use some form of
> >vmstat or similar to check out what had happened (cpu, paging,
> >interrupt storm, context switches, IO-wait, etc.). If none of
> >those indicates problems, and the tcpdump does not reveal DNS
> >problems it may be an issue with the VPS host (if you use a
> >virtually shared hosted service).

> Thanks man, I'll give that a go.

> So basically I have to set up a crontab to run vmstat say once every 30
> minutes?

No, if you do vmstat 1 it runs prints every second statistics, on the man-page for vmstat you can read about all it's flags and switches.


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