Hi all,
there are some benchmarks from my tests. Maybe interesting.
Configuration:
==============
Pentium III (Coppermine) 550MHz, 128MB RAM, MB Galaxy 2000+, integrated
IDE UltraDMA/33, IDE UltraDMA/66 (Promise). PCI card HotRot/66.
Boot disk is connected to onboard IDE-UltraDMA/33.
Two WD WDC WD273BA (7200rpm,27GB, 2MB internal cache) are connected to
onboard Promise IDE-UltraDMA/66 (one disk per IDE channel).
Two disks Seagete ST38410A (5400, 8GB, 512kB) are connected to Abit
HotRot/66.
Linux kernel 2.2.14 with raid patch (and ide patch).
chunk size 4KB, blocksize (ext2) 4KB.
hdparm for all disks:
multcount = 0 (off)
I/O support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 1 (on)
keepsettings = 0 (off)
nowerr = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
Seagate alone
-------------
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
500 8881 99.3 18288 13.4 7603 10.8 8562 94.1 17867 6.3
103.6 0.5
Western Digital alone
---------------------
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
500 8890 99.0 23128 17.4 9909 15.4 8656 95.1 21967 7.7
146.1 0.6
Raid-0 (2xSeagate)
------------------
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
500 8618 97.1 42237 34.6 14963 23.7 8777 97.8 44442 19.1
110.0 0.6
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
1000 8582 96.9 41399 33.7 15262 24.0 8849 98.5 44030 18.6
94.2 0.5
Raid-0 (2xWestern Digital)
--------------------------
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
500 8650 96.9 41756 31.5 16309 26.9 8857 98.1 45439 20.6
149.2 0.5
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
1000 8614 96.2 40210 30.5 16661 27.5 8928 99.0 45391 19.9
126.9 0.8
Raid-1 (2xSeagate)
------------------
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
500 8391 95.2 20172 16.1 7912 11.7 8476 94.3 20527 8.5
106.5 0.5
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
1000 8381 95.2 19437 15.7 8071 12.1 8724 96.9 20635 8.3
83.6 0.6
Raid-1 (2xWestern Digital)
--------------------------
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
500 8472 96.1 21238 15.6 8984 13.1 8616 95.9 22796 10.6
144.4 0.7
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
1000 8430 95.6 20308 15.1 9086 14.1 8802 97.7 22728 9.1
120.7 0.6
Raid-0 (4 disks = 2xWestern Digital, 2x Seagate)
------------------------------------------------
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
500 8881 99.0 57904 44.9 22972 38.7 8917 98.6 84374 44.3
168.2 1.1
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
1000 8871 98.9 55508 44.1 22922 37.8 8938 98.7 84509 44.2
137.7 0.9
Raid-1 (4 disks = 2xWestern Digital, 2x Seagate)
------------------------------------------------
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
500 8252 93.6 17139 12.5 8346 13.2 8517 94.2 21159 8.3
160.8 1.1
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
1000 8254 93.8 16380 12.9 8430 12.7 8726 96.6 21136 9.2
124.5 1.5
Raid-5 (4 disks = 2xWestern Digital, 2x Seagate)
------------------------------------------------
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
500 7849 87.0 34452 27.1 13003 20.3 8221 92.2 28041 17.3
172.4 0.8
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
1000 7861 87.3 35323 27.5 13244 21.7 8300 92.5 27577 15.9
148.5 1.4
