performance of jailed processes
Bernd Walter
ticso at cicely12.cicely.de
Wed Mar 31 08:23:04 PST 2004
On Tue, Mar 30, 2004 at 06:58:28PM +0200, Dag-Erling Smørgrav wrote:
> Can anyone explain why jailed processes seem to perform much worse
> than non-jailed processes in recent -CURRENT?
>
> Specifically, running a query against a remote MySQL server from
> inside a jail takes an order of magnitude more time than from outside
> the jail. Tcpdump shows that the TCP packets carrying the result are
> evenly spaced, so this is not a matter of the server timing out on a
> DNS lookup or anything like that.
>
> Running a configure script also takes much longer inside the jail than
> outisde, and again, progress is even (though slow), so it is clearly
> not a matter of DNS timing out.
Do the jails all have the same malloc.conf as the base system?
--
B.Walter BWCT http://www.bwct.de
ticso at bwct.de info at bwct.de
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