[linux-lvm] LVM & high system load
Dominique LARCHEY-WENDLING
Dominique.Larchey-Wendling at loria.fr
Tue May 1 21:28:06 UTC 2001
> I doubt it, I've got LVM0.9.1b7 on a 486 without any real load... even when
> compiling the kernel. I also have reiserfs on 2.2.19. I noticed in your
> previous post that you had 3 pv's on the same physical disk... that may be
> contributing, depending on your PE layout on the PVs.
The layout is linear ...
-----------------------------------------------------------------
[root at charlie larchey]# /usr/sbin/lvdisplay -v /dev/mmedia/music
--- Logical volume ---
LV Name /dev/mmedia/music
VG Name mmedia
LV Write Access read/write
LV Status available
LV # 2
# open 2
LV Size 9 GB
Current LE 2304
Allocated LE 2304
Allocation next free
Read ahead sectors 120
Block device 58:1
--- Distribution of logical volume on 1 physical volume ---
PV Name PE on PV reads writes
/dev/hda5 2304 2129836 343926
--- logical volume i/o statistic ---
2129836 reads 343926 writes
--- Logical extents ---
LE PV PE reads writes
00000 /dev/hda5 00006 1025 1875
00001 /dev/hda5 00007 1024 1024
00002 /dev/hda5 00008 1024 1024
00003 /dev/hda5 00009 1024 961
00004 /dev/hda5 00010 1024 0
.....
02298 /dev/hda5 02304 2048 1024
02299 /dev/hda5 02305 2048 1024
02300 /dev/hda5 02306 2048 1024
02301 /dev/hda5 02307 2048 1024
02302 /dev/hda5 02308 2048 1024
02303 /dev/hda5 02309 2048 1024
--------------------------------------------------------
> If not, it's definitely silly :)
It is NOT SILLY ... see next post for performance issues
DL
--
Dominique Larchey
LORIA, Nancy, France
Tel. (Work) +33 (0) 3 83 59 20 13
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