On Wed, Jan 08, 2014 at 04:43:07PM +0200, Sergey Meirovich wrote: > Results are almost the same: > 14.68Mb/sec 3758.02 Requests/sec >
On my laptop SSD I get the following results (sometimes up to 200MB/s, sometimes down to 100MB/s, always in the 40k to 50k IOps range): time elapsed (sec.): 5 bandwidth (MiB/s): 160.00 IOps: 40960.00 The IOps are more than the hardware is physically capable of, but given that you didn't specify O_SYNC this seems sensible given that we never have to flush the disk cache. Could it be that your array has WCE=0? In Linux we'll never enable the cache automatically, but Solaris does at least when using ZFS. Try running: sdparm --set=WCE /dev/sdX and try again. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
