[DRBD-user] umount /drbdpart takes >50 seconds

[Lars Ellenberg]

On Fri, Dec 14, 2018 at 02:13:50PM +0100, Harald Dunkel wrote:
> Hi Lars,
> 
> On 12/14/18 1:27 PM, Lars Ellenberg wrote:
> > 
> > There was nothing dirty (~ 7  MB; nothing worth to mention).
> > So nothing to sync.
> > 
> > But it takes some time to invalidate and shrink 20 million dentries
> > and inodes and 13 million buffer heads and associated caches.
> > Also, cpu bound now makes more sense.
> 
> Would you suggest to set cpu-mask?

That has nothing to do with anything.

Just do whatever you are doing
 a) *without* DRBD, then
 b) *with* DRBD.
Just make sure you do the same thing.

Then we compare apples with apples, and can talk.

-- 
: Lars Ellenberg
: LINBIT | Keeping the Digital World Running
: DRBD -- Heartbeat -- Corosync -- Pacemaker

DRBD® and LINBIT® are registered trademarks of LINBIT
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