On Mon, Mar 21, 2016 at 6:02 AM, Yan, Zheng <zyan@xxxxxxxxxx> wrote: > >> On Mar 21, 2016, at 18:17, Kenneth Waegeman <kenneth.waegeman@xxxxxxxx> wrote: >> >> Thanks! As we are using the kernel client of EL7, does someone knows if that client supports it? >> > > fadvise DONTNEED is supported by kernel memory management subsystem. Fadvise DONTNEED works for all filesystems (including cephfs kernel client) that use page cache. Does the kernel pass it through to the OSDs? They take advisory flags for this kind of thing now as well, which RBD uses for exactly this (in block form, of course). In other news, I created a tracker ticket for ceph-fuse to support it. http://tracker.ceph.com/issues/15252 -Greg _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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