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@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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