13 Apr
2021
13 Apr
'21
7 a.m.
On 4/12/21 5:46 PM, Dan van der Ster wrote:
Hi all,
bdev_enable_discard has been in ceph for several major releases now but it is still off by default. Did anyone try it recently -- is it safe to use? And do you have perf numbers before and after enabling?
I have done so on SATA SSDs in a few cases and: it worked Did I notice a real difference? Not really. It's highly debated if this still makes a difference with modern flash devices. I don't think there is a real conclusion if you still need to trim/discard blocks. Wido
Cheers, Dan _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io