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? The host has 24 cores (no HT) and
is supposed to run LXContainers. How many cores should I reserve for
drbd? https://docs.linbit.com/docs/users-guide-8.4/#s-latency-tuning
doesn't give any recommendations, unfortunately.
Apparently no (or negligible) IO happening.
(you have 20 Gig in ext4_inode_cache alone...
I'm not surprised that umount takes "a while").
Is sync broken for drbd?
Well, I don't think so.
But thank you for considering that ;-)
No offense, of course. It was just weird.
Thanx for you help
Harri
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