Re: raid5 slow (test on another system)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



and another system
p4 2.8Ghz with 2*300gb (normal ide ports)

i created a degraded raid5

25% difference in read performance :

2.4.20 :

Version 1.03 ------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
gx270.a2000.nu 1G 29724 79 41447 15 17575 6 33146 80 55494 12 267.6 0
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 2539 98 +++++ +++ +++++ +++ 2523 98 +++++ +++ 6307 96
gx270.a2000.nu,1G,29724,79,41447,15,17575,6,33146,80,55494,12,267.6,0,16,2539,98
,+++++,+++,+++++,+++,2523,98,+++++,+++,6307,96


2.6.9-ac11 :

Version 1.03 ------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
gx270.a2000.nu 1G 21190 52 37804 8 10092 2 34726 80 68587 9 263.1 0
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 3305 99 +++++ +++ +++++ +++ 3372 100 +++++ +++ 10428 98
gx270.a2000.nu,1G,21190,52,37804,8,10092,2,34726,80,68587,9,263.1,0,16,3305,99,+
++++,+++,+++++,+++,3372,100,+++++,+++,10428,98
-
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

[Index of Archives]     [Linux RAID Wiki]     [ATA RAID]     [Linux SCSI Target Infrastructure]     [Linux Block]     [Linux IDE]     [Linux SCSI]     [Linux Hams]     [Device Mapper]     [Device Mapper Cryptographics]     [Kernel]     [Linux Admin]     [Linux Net]     [GFS]     [RPM]     [git]     [Yosemite Forum]


  Powered by Linux