IO cache may be handled be the kernel, not userspace Are you sure it is not already in use ? Do not look for userspace memory On 07/09/2015 23:19, Vickey Singh wrote: > Hello Experts , > > I want to increase my Ceph cluster's read performance. > > I have several OSD nodes having 196G RAM. On my OSD nodes Ceph just uses > 15-20 GB of RAM. > > So, can i instruct Ceph to make use of the remaining 150GB+ RAM as read > cache. So that it should cache data in RAM and server to clients very fast. > > I hope if this can be done, i can get a good read performance boost. > > > By the way we have a LUSTRE cluster , that uses extra RAM as read cache and > we can get upto 2.5GBps read performance. I am looking someone to do with > Ceph. > > - Vickey - > > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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