Raghavendra G wrote:
> Can you try with write-behind loaded on client side?
>
i did some more modifications to the client side:
volume client
type protocol/client
option transport-type tcp
option remote-host 10.0.0.1 # IP address of the remote brick
option remote-subvolume brick # name of the remote volume
end-volume
### Add readahead feature
volume readahead
type performance/read-ahead
option page-size 1MB # unit in bytes
option page-count 2 # cache per file = (page-count x page-size)
subvolumes client
end-volume
### Add IO-Cache feature
volume iocache
type performance/io-cache
option page-size 256KB
option page-count 2
subvolumes readahead
end-volume
### Add writeback feature
volume writeback
type performance/write-behind
option aggregate-size 1MB
option window-size 2MB
option flush-behind off
subvolumes iocache
end-volume
and now:
gfs:
>>> Kernel build for GENERIC started on Tue May 26 10:27:52 CEST 2009
Kernel build directory is /usr/obj/usr/src/sys/GENERIC
>>> Kernel build for GENERIC completed on Tue May 26 10:41:02 CEST 2009
~14mins
nfs:
>>> Kernel build for GENERIC started on Mon May 11 11:07:51 CEST 2009
Kernel build directory is /usr/obj/mnt/nfs/usr/src/sys/GENERIC
>>> Kernel build for GENERIC completed on Mon May 11 11:23:13 CEST 2009
~16mins
it's faster tha NFS now!
but still it can't sustain a bonnie run:
> sudo bonnie -d /mnt/nfs -m NFS
File '/mnt/nfs/Bonnie.61622', size: 104857600
Writing with putc()...done
Rewriting...done
Writing intelligently...done
Reading with getc()...done
Reading intelligently...done
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
-------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
NFS 100 9179 6.4 9195 2.2 6224 4.4 10590 7.6 1599999 99.9
3980.8 25.7
> sudo bonnie -d /mnt/gfs -m GFS
File '/mnt/gfs/Bonnie.61618', size: 104857600
Writing with putc()...done
Rewriting...done
Bonnie: drastic I/O error (/mnt/gfs/Bonnie.61618): Input/output error
any idea?
--
Paolo Pisati
Reparto Sistemi
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