Trying to test for tuning with different chunk's. Just finished 16K chunk and am about 20% done with the 32K test. Here are the numbers on 16K chunk, will send 32, 96,128,192 and 256 as I get them. But keep in mind each one of these tests take about 4~6 hours, so it is a slow process... I have settled for XFS as the file system type, it seems to be able to beat any thing else out there. -Adam XFS Config=NAS+NFS RAID6 16K chunk nas tmp # time tar cf - . | (cd /data ; tar xf - ) real 252m40.143s user 1m4.720s sys 25m6.270s /dev/md/0 1.1T 371G 748G 34% /data 4.207 hours @ 90,167M/hour or 1502M/min or 25.05M/sec David Greaves wrote: > Adam Talbot wrote: > >> OK, this topic I relay need to get in on. >> I have spent the last few week bench marking my new 1.2TB, 6 disk, RAID6 >> array. >> > Very interesting. Thanks. > > Did you get around to any 'tuning'. > Things like raid chunk size, external logs for xfs, blockdev readahead > on the underlying devices and the raid device? > > David > - > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > > - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
