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Re: [Condor-users] tuning a file server
- Date: Tue, 2 Aug 2005 20:22:40 +0200
- From: Steffen Grunewald <steffen.grunewald@xxxxxxxxxx>
- Subject: Re: [Condor-users] tuning a file server
On Tue, Aug 02, 2005 at 03:57:54PM +0100, David McBride wrote:
> On Tue, 2005-08-02 at 15:21 +0200, Steffen Grunewald wrote:
> > So at the moment I'm lost: I cannot reboot the server just to put the
> > "elevator=deadline" kernel parameter into action.
> I have discovered that you can switch io-scheduler at run-time on a
> per-block-device basis; no reboot required.
This feature has been announced for 2.7 kernels. I'm not aware of it
for 2.6.8 (the version my distro uses), and /sys/block/sdb/queue is
a directory here.
>  http://kerneltrap.org/node/3851
will look at that tomorrow when IO'm back at my desk