Hi, I have a query regarding Lustre Throughput Numbers with mdtest benchmark.I am running mdtest benhmark with following options :-
/home/meshram/mpich2-new/mpich2-1.4/mpich2-install/bin/mpirun -np 256 -hostfile ./hostfile ./mdtest -z 3 -b 10 -I 5 -v -d /tmp/l66 where , mdtest - is the standard benchmark to test metadata operations. [ https://computing.llnl.gov/?set=code&page=sio_downloads ] /tmp/l66 is my Lustre mount. I am using 1Gige Network with TCP transport. hostfile has 8 host nodes I am varying the number of processes as we can see in following table . I was amazed by the throughput which I got. I think this is too huge. Can someone please let me know if these numbers are correct ? 4 Process : File creation : 0.501 sec, 44392.140 ops/sec 8 Process : File creation : 0.685 sec, 64890.598 ops/sec 16 Process : File creation : 1.426 sec, 62318.798 ops/sec 32 Process : File creation : 2.947 sec, 60312.766 ops/sec 64 Process : File creation : 5.630 sec, 63142.760 ops/sec 128 Process : File creation : 13.208 sec, 53835.707 ops/sec 256 Process : File creation : 24.601 sec, 57804.777 ops/sec Thanks, Vilobh Graduate Research Associate Department of Computer Science The Ohio State University Columbus Ohio
_______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
