Hi all, Today we are running some tests with this POSIX compatibility test [1] and noticed a possible performance regression in the latest kernel. The cluster we are testing is 0.94.2. 0.94.2 ceph-fuse client: All tests successful. Files=184, Tests=1957, 83 wallclock secs ( 0.72 usr 0.16 sys + 5.55 cusr 10.17 csys = 16.60 CPU) Result: PASS Kernel client 3.10.0-229.7.2.el7.x86_64: All tests successful. Files=184, Tests=1957, 143 wallclock secs ( 0.88 usr 0.15 sys + 5.86 cusr 10.43 csys = 17.32 CPU) Result: PASS Kernel client 4.1.0-1.el7.elrepo.x86_64: All tests successful. Files=184, Tests=1957, 378 wallclock secs ( 0.81 usr 0.34 sys + 5.30 cusr 9.75 csys = 16.20 CPU) Result: PASS Any idea why the kernel client is getting much slower? Cheers, Dan [1] http://tuxera.com/sw/qa/pjd-fstest-20080816.tgz _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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