it was not clear to me you were using 16K block from your email it seemed like you were writing 16k files. 16k block size is really tiny. The default ZFS block size is 128K but if you want to get performance out of Lustre/ZFS for big files you should use 1M block size. Anyway there are a bunch of other optimizations parameters to play with Lustre (number of rpcs in flight and so on...) and the kernel module parameters for zfs, ko2iblnd, ksocklnd, ptlrpc. You can gain even higher performance setting the proper parameters.
On 4/8/19 1:09 PM, Bill Carlson wrote: > Note the tests were run on a 20 cpu, 1TB (not GB) ram, also serving as > the only OSS for the filesystem. > > I've noted a key item, sysbench tests were with 16k blocks. Changing > to 1MB was much much better, only about 10% slower than raw disk. > > Time to move to the next phase. :) > _______________________________________________ lustre-discuss mailing list [email protected] http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
