Configuration: global-dhp__io-sysbench-large-ro-ext4 Result: http://www.csn.ul.ie/~mel/postings/mmtests-20120424/global-dhp__io-sysbench-large-ro-ext4 Benchmarks: sysbench Summary ======= Looking better in places than ext3 but still of concern. Benchmark notes =============== mkfs was run on system startup. No attempt was made to age it. No special mkfs or mount options were used. sysbench is an OLTP-like benchmark. The test type was "complex" and read-only. The table size was 50,000,000 rows regardless of memory size but far exceeds the memory size of any of the test machines. sysbench was chosen because it's a reasonably complex OLTP-like benchmark with straight-forward prerequisites. The backing database was postgres. =========================================================== Machine: arnold Result: http://www.csn.ul.ie/~mel/postings/mmtests-20120424/global-dhp__io-sysbench-large-ro-ext4/arnold/comparison.html Arch: x86 CPUs: 1 socket, 2 threads Model: Pentium 4 Disk: Single Rotary Disk =========================================================== sysbench -------- Generally regresssed. Swapping for kernels 3.1 and 3.2 is very high. ========================================================== Machine: hydra Result: http://www.csn.ul.ie/~mel/postings/mmtests-20120424/global-dhp__io-sysbench-large-ro-ext4/hydra/comparison.html Arch: x86-64 CPUs: 1 socket, 4 threads Model: AMD Phenom II X4 940 Disk: Single Rotary Disk Status: Ok ========================================================== sysbench -------- For low number of clients, this has generally improved. Swapping in kernel 3.1 was high. ========================================================== Machine: sandy Result: http://www.csn.ul.ie/~mel/postings/mmtests-20120424/global-dhp__io-sysbench-large-ro-ext4/sandy/comparison.html Arch: x86-64 CPUs: 1 socket, 8 threads Model: Intel Core i7-2600 Disk: Single Rotary Disk Status: ========================================================== Generally this is telling a much better story but this could be because of the much larger memory size of this machine offsetting some other regression. Swapping in 3.1 and 3.2. -- Mel Gorman SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>