Steve Lord wrote:
>
<...>
> An external log should
> go faster, on the delete end though, there is a synchronous write to the
> log in there, so the number of ops per second your journal device can
> do is important for delete performance.
Hello,
Updated data with e) /dev/md0 raid5 xfs with an external log
on /dev/md4 (a 128MB raid1 array on hda and hdc) and f) over nfs.
Everything being the same as in the previous mails.
> How long does it take to extract the 2.4.6 linux kernel and delete it?
>
> | create | delete
> -------------------
> a) | 0:17 | 0:07
> b) | 0:24 | 0:25
> c) | 1:51' | 16:45
> d) | 2:54 | 8:08
---------------------
e) | 0:10 | 0:02 to be compared with c)
f) | 0:41 | 0:23 to be compared with d)
>
> [tru@adm ~/tmp]$ du -sk /tmp/linux-2.4.6.tar.gz ./linux/
> 26312 /tmp/linux-2.4.6.tar.gz
> 130412 ./linux
>
> a) local xfs partition on the will become nfs client
> b) local xfs raid5 array on a single disk (/dev/md1) on the will become
> nfs server
> c) local xfs raid5 array on 3ware card 7disks (/dev/md0) on the will
> become nfs server
> d) nfs
e) local xfs raid5 array on 3ware card 7disks (/dev/md0) WITH external
xfslog /dev/md5 (raid1)
f) nfs exported /dev/md0
> bonnie block (K/sec)
> |output|input
> |------------
> c) |47340 |77559
> d) | 4390 |10777
---------------------
e) 45753 |10304
f) 4410 |10693
e)
[tru@sheridan /raid5]$ date ; time tar xzf /tmp/linux-2.4.6.tar.gz ;
date; time /bin/rm -rf linux ; date
Mon Jul 23 15:03:02 CEST 2001
4.890u 3.920s 0:09.82 89.7% 0+0k 0+0io 327pf+0w
Mon Jul 23 15:03:12 CEST 2001
0.060u 1.880s 0:02.21 87.7% 0+0k 0+0io 138pf+0w
Mon Jul 23 15:03:14 CEST 2001
[tru@sheridan ~]$ ~/bonnie++-1.00g/bonnie++ -d /raid5
Writing with putc()...done
Writing intelligently...done
Rewriting...done
Reading with getc()...done
Reading intelligently...done
start 'em...done...done...done...
Create files in sequential order...done.
Stat files in sequential order...done.
Delete files in sequential order...done.
Create files in random order...done.
Stat files in random order...done.
Delete files in random order...done.
Version 1.00g ------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
sheridan.bis.pas 2G 10753 97 45753 81 23834 56 10304 97 76821 68
469.3 3
------Sequential Create------ --------Random
Create--------
-Create-- --Read--- -Delete-- -Create-- --Read---
-Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
/sec %CP
16 2257 93 +++++ +++ 2032 84 2245 95 +++++ +++
1624 87
sheridan.bis.pasteur.fr,2G,10753,97,45753,81,23834,56,10304,97,76821,68,469.3,3,16,2257,93,+++++,+++,2032,84,2245,95,+++++,+++,1624,87
f)
[tru@adm tru]$ date ; time tar xzf /tmp/linux-2.4.6.tar.gz ; date; time
/bin/rm -rf linux ; date
Mon Jul 23 15:03:24 CEST 2001
2.770u 2.340s 0:41.12 12.4% 0+0k 0+0io 325pf+0w
Mon Jul 23 15:04:05 CEST 2001
0.020u 0.380s 0:22.71 1.7% 0+0k 0+0io 138pf+0w
Mon Jul 23 15:04:28 CEST 2001
[tru@adm tru]$ ~/rh71/build/bonnie++-1.00g/bonnie++ -d /home/Bis/tru/
Writing with putc()...done
Writing intelligently...done
Rewriting...done
Reading with getc()...done
Reading intelligently...done
start 'em...done...done...done...
Create files in sequential order...done.
Stat files in sequential order...done.
Delete files in sequential order...done.
Create files in random order...done.
Stat files in random order...done.
Delete files in random order...done.
Version 1.00g ------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
adm.cluster 1G 4393 32 4410 2 3092 3 10585 88 10693 4
644.3 3
------Sequential Create------ --------Random
Create--------
-Create-- --Read--- -Delete-- -Create-- --Read---
-Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
/sec %CP
16 1094 3 4499 14 1219 4 1147 4 4968 6
1084 4
adm.cluster,1G,4393,32,4410,2,3092,3,10585,88,10693,4,644.3,3,16,1094,3,4499,14,1219,4,1147,4,4968,6,1084,4
Tru
--
Dr Tru Huynh | Bioinformatique Structurale
mailto:tru@xxxxxxxxxx | tel/fax +33 1 45 68 87 37/19
Institut Pasteur, 25-28 rue du Docteur Roux, 75724 Paris CEDEX 15 France
|