Promise RAID PDC20378 performance (Asus K8V SE Deluxe)
Hello Goswin and all!
On ???, ?? Feb 2005, Goswin von Brederlow wrote:
I got 2 new SATA drives and pluged them into the onboard Promise
PDC20376 (FastTrak 376) and run badblocks on them (both in
parallel). The write test completed fine but read&compare locked up my
system.
I repeated with a read-only test and again it locked up with an DMA
timeout.
Does anyone have the onboard Promise successfully in use on an Asus
K8V board?
I tested the performance of the Promise controller on an Asus K8V SE
Deluxe M/B, comparing to the on-board VIA VT8237. The Promise controller
is slightly different from yours, being PDC20378.
The system was installed with the latest netinst image,
sid-amd64-netinst.iso, 19-Feb-2005, kernel 2.6.8-10. The disk test was run
on an XFS software RAID-0 partition. The two SATA disks are 200 GB Seagate
Barracudas. Testing was done with bonnie++, using a 1 GB file size with
the system RAM set to 256 MB (bonnie++ -u root -s 1g).
The tests did run smoothly on both the on-board and Promise SATA
controllers. The Promise controller is, however, greatly inferior in
speed. For example, VIA write speed is over 60% higher! The CPU load, on
the other hand, is substantially higher with VIA.
Summary (average of two runs):
VIA VT8237 Promise PDC20378
write speed: 131 MB/s 80 MB/s
read speed: 124 MB/s 101 MB/s
I've attached the full bonnie++ outputs to this mail.
Have a nice day,
Mikael J.
http://www.helsinki.fi/~mpjohans/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
magnesium 1G 63403 96 136459 30 43221 10 56919 86 126337 14 254.5 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 6577 32 +++++ +++ 6664 22 4361 24 +++++ +++ 5371 20
magnesium,1G,63403,96,136459,30,43221,10,56919,86,126337,14,254.5,0,16,6577,32,+++++,+++,6664,22,4361,24,+++++,+++,5371,20
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
magnesium 1G 63152 96 132642 30 48565 12 57973 88 127052 14 265.2 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 5521 28 +++++ +++ 6244 20 4557 24 +++++ +++ 4851 19
magnesium,1G,63152,96,132642,30,48565,12,57973,88,127052,14,265.2,0,16,5521,28,+++++,+++,6244,20,4557,24,+++++,+++,4851,19
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
magnesium 1G 62781 96 81773 17 32800 7 48129 60 103462 9 261.6 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 5508 21 +++++ +++ 3648 10 4557 19 +++++ +++ 3192 11
magnesium,1G,62781,96,81773,17,32800,7,48129,60,103462,9,261.6,0,16,5508,21,+++++,+++,3648,10,4557,19,+++++,+++,3192,11
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
magnesium 1G 62526 96 81985 17 32760 7 49120 62 103035 9 259.8 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 5800 22 +++++ +++ 3746 11 4514 17 +++++ +++ 3154 11
magnesium,1G,62526,96,81985,17,32760,7,49120,62,103035,9,259.8,0,16,5800,22,+++++,+++,3746,11,4514,17,+++++,+++,3154,11
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