> On Tue, Jan 27, 2009 at 02:26:13PM +0100, Heinz Diehl wrote: > >> No. My rates are totally stable with 2.6.28.2 and at the same level as >> they were running any 2.6.28.x so far. > > 2.6.28.x vanilla, forgot to mention it, sorry! > Ok, I'm running vanilla + grsecurity. Forgot to mention that it's LUKS. some numbers on a LUKS raid0: hdparm -tT Timing cached reads: 1246 MB in 2.00 seconds = 622.90 MB/sec Timing buffered disk reads: 122 MB in 3.01 seconds = 40.51 MB/sec hdparm -tT --direct Timing O_DIRECT cached reads: 70 MB in 2.04 seconds = 34.26 MB/sec Timing O_DIRECT disk reads: 104 MB in 3.04 seconds = 34.26 MB/sec hdparm -tT (on unencrypted device) Timing cached reads: 1486 MB in 2.00 seconds = 743.18 MB/sec Timing buffered disk reads: 530 MB in 3.00 seconds = 176.59 MB/sec hdparm -tT --direct (on unencrypted device) Timing O_DIRECT cached reads: 232 MB in 2.01 seconds = 115.40 MB/sec Timing O_DIRECT disk reads: 476 MB in 3.01 seconds = 158.36 MB/sec Pretty bad slowdown with encryption, hw is amd x2 4200+, 1gb ram. /Andreas --------------------------------------------------------------------- dm-crypt mailing list - http://www.saout.de/misc/dm-crypt/ To unsubscribe, e-mail: dm-crypt-unsubscribe@xxxxxxxx For additional commands, e-mail: dm-crypt-help@xxxxxxxx
