These figures are not really systematic, but nevertheless might be
interesting to some people.
I've got a 2U system with 10 ES 500Gb Seagate drives and and two AOC-SATA2
controllers.
Ndisk means a standard stripe pool. NxM means a N stripe over M mirror
disks. Nz is raidz, Nz2 is raidz2, etc.
The first four figures are to set a base line, mainly this is to check
different bonnie++ performance figures for 10 disk configs. It's a 4 core
system, so the CPU figures are obviously nonsensical. All these figures were
with SXCE b77.
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
1disk 8G 72124 68 73008 13 35455 9 57398 49 69177 6
431.1 0
2disk 8G 104809 99 120337 22 71391 18 93629 81 140809 12
406.7 1
6disk 8G 103996 99 251036 48 195690 47 109310 95 454320 44
1294.9 2
8z-20071126.2 8G 94129 99 186645 43 130154 37 93117 90 335960 42
651.0 2
2x2-20071126.2 8G 101582 99 127791 27 83267 24 98417 91 239479 25
624.5 2
6z2-20071126.2 8G 85368 88 190432 40 126906 37 98447 94 324295 36
664.9 2
5z-20071126.2 8G 90194 91 186249 44 121107 36 95198 92 295900 33
618.5 1
2x5z-20071126.2 8G 91733 92 231036 49 174123 48 95955 94 540554 70
592.3 2
2x5z2-20071126.2 8G 90256 91 162930 37 124025 36 89957 86 386879 49
538.2 2
10z2-20071126.2 8G 98725 98 223594 48 116586 33 91154 87 342374 44
633.1 2
5x2-20071126.2 8G 100618 99 212327 45 155883 43 103007 95 580589 65
1499.4 4
------Sequential Create------ --------Random
Create--------
-Create-- --Read--- -Delete-- -Create-- --Read---
-Delete--
files:max:min /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec
%CP
1disk 16 20685 99 +++++ +++ +++++ +++ 18771 99 +++++ +++ 21485
99
2disk 16 22142 99 +++++ +++ +++++ +++ 19526 100 +++++ +++ +++++
+++
6disk 16 22321 99 +++++ +++ +++++ +++ 19703 100 +++++ +++ +++++
+++
8z-20071126.2 16 19923 99 +++++ +++ +++++ +++ 17651 99 +++++ +++ 32024
100
2x2-20071126.2 16 21261 99 +++++ +++ +++++ +++ 20020 99 +++++ +++ +++++
+++
6z2-20071126.2 16 21128 99 +++++ +++ +++++ +++ 19276 100 +++++ +++ 31209
99
5z-20071126.2 16 21269 99 +++++ +++ +++++ +++ 18885 99 +++++ +++ +++++
+++
2x5z-20071126.2 16 21310 99 +++++ +++ +++++ +++ 22866 99 +++++ +++ +++++
+++
2x5z2-20071126.2 16 20884 99 +++++ +++ 31556 99 21476 99 +++++ +++ +++++
+++
10z2-20071126.2 16 23718 100 +++++ +++ +++++ +++ 23779 99 +++++ +++ +++++
+++
5x2-20071126.2 16 21438 99 +++++ +++ +++++ +++ 19050 100 +++++ +++ +++++
+++
My main focus now it to tuning NFS performance for bonnie++ tests with Xen
domains on a zfs+NFS storage backend.
Nicholas
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