On Fri, May 22, 2015 at 1:57 PM, Francois Lafont <flafdivers@xxxxxxx> wrote: > Hi, > > Yan, Zheng wrote: > >> fsc means fs-cache. it's a kernel facility by which a network >> filesystem can cache data locally, trading disk space to gain >> performance improvements for access to slow networks and media. cephfs >> does not use fs-cache by default. > > So enable this option can improve performance, correct? > Is there downside in return? It can save network bandwidth and reduce read latency for heavy reading workload. If your network is fast, it may reduce performance. Besides, you need to setup fscache before using it. > > -- > François Lafont > _______________________________________________ > 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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