Hi, I have done similar exercise on FSAL_GLUSTER
configuration : gluster volume 2x2 using 4 servers with 4GB RAM and IGB ethernet cable b/w them It was export by one of the above server and mounted in another client machine, created 10000 1kb files Got a similar kind of result like FSAL_CEPH i) dirent caching enabled real 0m2.518s real 0m2.706s real 0m2.628s real 0m2.712s real 0m2.197s real 0m2.065s real 0m2.072s real 0m2.674s real 0m2.649s real 0m2.652s ii.) dirent caching disabled real 0m6.178s real 0m2.638s real 0m2.481s real 0m2.501s real 0m2.524s real 0m2.515s real 0m2.476s real 0m2.551s real 0m2.580s real 0m2.543s Regards, Jiffin On 14/01/17 02:31, Frank Filz wrote: > Here are the FSAL_CEPH results: > > With 10000 files, dirent caching enabled > real 0m1.032s > real 0m1.315s > real 0m1.421s > real 0m1.429s > real 0m1.377s > real 0m1.344s > real 0m0.667s > real 0m1.400s > real 0m1.389s > real 0m1.728s > With 10000 files, dirent caching disabled > real 0m15.483s > real 0m1.457s > real 0m1.487s > real 0m1.511s > real 0m1.498s > real 0m1.765s > real 0m1.445s > real 0m0.930s > real 0m0.793s > real 0m1.178s > > We need to investigate why in the uncached case it takes 15 seconds for the > initial readdir. I repeated the experiment several times cached and uncached > and consistently got comparable results. > > Ceph (as was expected) saw less differentiation between cached and uncached, > there might still be a small advantage to the cached, but it may not be > statistically significant. > > Frank > > > --- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > > > ------------------------------------------------------------------------------ > Developer Access Program for Intel Xeon Phi Processors > Access to Intel Xeon Phi processor-based developer platforms. > With one year of Intel Parallel Studio XE. > Training and support from Colfax. > Order your platform today. http://sdm.link/xeonphi > _______________________________________________ > Nfs-ganesha-devel mailing list > Nfs-ganesha-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/nfs-ganesha-devel ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Nfs-ganesha-devel mailing list Nfs-ganesha-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs-ganesha-devel
