|
Re: RE Tuning for performance
2006-08-24 10:45:40
Joshua Baker-LePain <jlb17 AT duke DOT edu> a écrit
sur 22/08/2006 15:15:34 :
> On Tue, 22 Aug 2006 at 9:36am, Cyrille Bollu wrote
>
> > owner-amanda-users AT amanda DOT org a écrit sur 21/08/2006 18:10:56
:
> >>
> >> What RAID controller? Have you benchmarked the array
itself with
> >> something like bonnie++ or tiobench?
> >
> > A Dell PowerEdge Expandable RAID Controller 4e/Di.
> >
> > Yes I benchmarked it using iozone but could not get meaningfull
results.
>
> Grab bonnie++ from <http://www.coker.com.au/bonnie++/> and throw
it at the
> array. It's very easy to use and gives some quite basic numbers.
The
> ones you're interested in are sequential read and sequential write.
>
root@srv-fhq-bkp bonnie++-1.03a]# ./bonnie++ -u 0
(snip)
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
srv-fhq-bkp.fed 16G 36522 95 120980 60
58116 21 17956 49 56374 27 431.1 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 1680 60 +++++ +++ +++++ +++ 2846 99 +++++
+++ 9810 99
srv-fhq-bkp.fedasil.be,16G,36522,95,120980,60,58116,21,17956,49,56374,27,431.1,0,16,1680,60,+++++,+++,+++++,+++,2846,99,+++++,+++,9810,99
[root@srv-fhq-bkp bonnie++-1.03a]#
Does that speaks to you?
I see bad sequential input with getc but good (better
than what I get with Amanda) block sequential input.
I have no idea whether 431 random seek/sec is good
or not.
Cyrille
|
|
|
