I switched first of may, and did not notice to much difference in memory usage. After the restart of the osd's on the node I see the memory consumption gradually getting back to as before. Can't say anything about latency.
-----Original Message-----
From: Konstantin Shalygin
Sent: dinsdag 28 mei 2019 11:52
To: Wido den Hollander
Cc: ceph-users@lists.ceph.com
Subject: *****SPAM***** Re: [ceph-users] BlueStore bitmap allocator
under Luminous and Mimic
________________________________
Hi,
With the release of 12.2.12 the bitmap allocator for BlueStore is
now
available under Mimic and Luminous.
[osd]
bluestore_allocator = bitmap
bluefs_allocator = bitmap
Before setting this in production: What might the implications be
and
what should be thought of?
>From what I've read the bitmap allocator seems to be better in
read
performance and uses less memory.
In Nautilus bitmap is the default, but L and M still default to
stupid.
Since the bitmap allocator was backported there must be a use-case
to
use the bitmap allocator instead of stupid.
Thanks!
Wido
Wido, do you setted allocator to bitmap on L installations past this
months? Any improvements?
k
test-memory.png
Description: Binary data
_______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
