Hello,
I just tried kernel 2.4.32 + latest libata patches from 2005-12-01
after my performance problems described here:
http://marc.theaimsgroup.com/?l=linux-kernel&m=113171290329839
Now the machine is performing very fast :-)
Results with 2.4.32 + libata latest:
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
proliant 2G 33294 91 57592 20 26778 5 30885 77 56081 5 174.2 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 27313 100 +++++ +++ 26421 99 27285 101 +++++ +++ 21477 89
proliant,2G,33294,91,57592,20,26778,5,30885,77,56081,5,174.2,0,16,27313,100,+++++,+++,26421,99,27285,101,+++++,+++,21477,89
Previous results with kernel 2.4.32-rc3:
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
proliant ? ? ? ? 2G 10523 ?28 11532 ? 3 ?7162 ? 1 24271 ?60 53495 ? 5 164.3 ? 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 30498 100 +++++ +++ 27244 ?98 29630 ?99 +++++ +++ 11587 ?46
proliant,2G,10523,28,11532,3,7162,1,24271,60,53495,5,164.3,0,16,30498,100,+++++,+++,27244,98,29630,99,+++++,+++,11587,46
A RAID1 rebuild went from 6-8 mb/s to this:
[=================>...] recovery = 85.9% (2202816/2562240) finish=0.1min speed=56280K/sec
Thanks Jeff, you rock.
Thomas