[Ocfs2-users] Slow concurrent actions on the same
LVM logicalvolume
Sunil Mushran
Sunil.Mushran at oracle.com
Fri Aug 24 10:38:44 PDT 2007
mounted.ocfs2 is still not devmapper savvy. We'll address that
in the next full release.
Arnold Maderthaner wrote:
> FYI the vg is setuped on /dev/sdc1.
> Also I noticed some strange thing. The mounted command doesn't show
> anything:
> [root at impaxdb ~]# mounted.ocfs2 -d
> Device FS UUID Label
> [root at impaxdb ~]# mounted.ocfs2 -f
> Device FS Nodes
> [root at impaxdb ~]#
>
> [root at impax ~]# mounted.ocfs2 -d
> Device FS UUID Label
> [root at impax ~]# mounted.ocfs2 -f
> Device FS Nodes
> [root at impax ~]#
>
>
> but devices are mounted:
>
> [root at impax ~]# mount -t ocfs2
> /dev/mapper/raidVG-sts001LV on /srv/dcm4chee/sts/001 type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-sts002LV on /srv/dcm4chee/sts/002 type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-sts003LV on /srv/dcm4chee/sts/003 type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-cacheLV on /srv/dcm4chee/sts/cache type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-u01LV on /srv/oracle/u01 type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-u02LV on /srv/oracle/u02 type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-u03LV on /srv/oracle/u03 type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-u04LV on /srv/oracle/u04 type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-webstartLV on /var/www/html/webstart type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-configLV on /opt/dcm4chee/server/default/conf type
> ocfs2 (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-xmbeanattrsLV on
> /opt/dcm4chee/server/default/data/xmbean-attrs type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-installLV on /install type ocfs2
> (rw,_netdev,heartbeat=local)
>
> [root at impaxdb ~]# mount -t ocfs2
> /dev/mapper/raidVG-sts001LV on /srv/dcm4chee/sts/001 type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-sts002LV on /srv/dcm4chee/sts/002 type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-sts003LV on /srv/dcm4chee/sts/003 type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-cacheLV on /srv/dcm4chee/sts/cache type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-u01LV on /srv/oracle/u01 type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-u02LV on /srv/oracle/u02 type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-u03LV on /srv/oracle/u03 type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-u04LV on /srv/oracle/u04 type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-webstartLV on /var/www/html/webstart type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-configLV on /opt/dcm4chee/server/default/conf type
> ocfs2 (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-xmbeanattrsLV on
> /opt/dcm4chee/server/default/data/xmbean-attrs type ocfs2
> (rw,_netdev,heartbeat=local)
> /dev/mapper/raidVG-installLV on /install type ocfs2
> (rw,_netdev,heartbeat=local)
>
>
> yours
>
> arnold
>
>
>
>
> On 8/24/07, *Arnold Maderthaner* <arnold.maderthaner at j4care.com
> <mailto:arnold.maderthaner at j4care.com>> wrote:
>
> vmstat server1:
> [root at impax ~]# vmstat 5
> procs -----------memory---------- ---swap-- -----io---- --system--
> -----cpu------
> r b swpd free buff cache si so bi bo in cs
> us sy id wa st
> 0 0 0 2760468 119924 872240 0 0 4 4 107
> 63 0 0 99 0 0
> 0 2 0 2760468 119928 872240 0 0 4 30 1095
> 277 1 0 99 0 0
> 0 0 0 2760468 119940 872248 0 0 7 11 1076
> 232 0 0 100 0 0
> 0 0 0 2760468 119948 872272 0 0 4 18 1084
> 244 0 0 100 0 0
> 0 0 0 2760468 119948 872272 0 0 7 34 1063
> 220 0 0 100 0 0
> 0 0 0 2760468 119948 872272 0 0 0 1 1086
> 243 0 0 100 0 0
> 0 0 0 2760716 119956 872272 0 0 7 10 1065
> 234 2 0 98 0 0
> vmstart server2:
> [root at impaxdb ~]# vmstat 5
> procs -----------memory---------- ---swap-- -----io---- --system--
> -----cpu------
> r b swpd free buff cache si so bi bo in cs
> us sy id wa st
> 0 0 24676 143784 46428 3652848 0 0 11 20 107
> 122 0 0 84 16 0
> 0 1 24676 143784 46452 3652832 0 0 4 14 1080
> 237 0 0 89 11 0
> 0 1 24672 143660 46460 3652812 6 0 14 34 1074
> 246 0 0 90 10 0
> 0 0 24672 143660 46460 3652852 0 0 7 22 1076
> 246 0 0 80 20 0
> 0 1 24672 143660 46476 3652844 0 0 7 10 1068
> 227 0 0 85 15 0
>
> iostat server1:
>
>
> [root at impax ~]# iostat -x 5
> Linux 2.6.18-8.el5PAE (impax) 08/24/2007
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 0.07 0.00 0.04 0.45 0.00 99.44
>
> Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s
> avgrq-sz avgqu-sz await svctm %util
> sda 0.24 0.90 0.23 0.76 15.72 13.33
> 29.22 0.01 12.68 4.77 0.47
> sdb 0.03 1.23 0.02 0.58 1.34 6.81
> 13.59 0.00 0.79 0.30 0.02
> sdc 0.58 0.87 3.88 3.78 16.69 10.87
> 3.60 7.98 1042.08 89.69 68.68
> dm-0 0.00 0.00 0.31 1.14 0.96 6.99
> 5.46 1.55 1061.28 459.00 66.92
> dm-1 0.00 0.00 0.31 0.31 0.95 0.31
> 2.01 0.66 1054.16 1054.17 66.15
> dm-2 0.00 0.00 0.31 0.31 0.95 0.31
> 2.01 0.66 1057.72 1057.84 66.24
> dm-3 0.00 0.00 0.96 0.34 6.15 0.55
> 5.12 0.77 592.01 504.72 66.04
> dm-4 0.00 0.00 0.32 0.33 0.96 0.41
> 2.14 0.66 1031.13 1028.75 66.00
> dm-5 0.00 0.00 0.31 0.32 0.95 0.40
> 2.12 0.66 1037.27 1036.55 66.09
> dm-6 0.00 0.00 0.31 0.31 0.94 0.31
> 2.01 0.66 1064.34 1064.45 66.37
> dm-7 0.00 0.00 0.32 0.31 0.95 0.32
> 2.01 0.66 1043.05 1042.99 65.77
> dm-8 0.00 0.00 0.31 0.31 0.95 0.32
> 2.03 0.66 1050.73 1048.23 65.97
> dm-9 0.00 0.00 0.34 0.31 0.99 0.31
> 2.01 0.67 1027.41 1006.68 65.71
> dm-10 0.00 0.00 0.32 0.32 0.95 0.32
> 2.01 0.68 1078.71 1050.22 66.41
> dm-12 0.00 0.00 0.31 0.31 0.96 0.31
> 2.03 0.66 1065.33 1065.10 66.43
> dm-13 0.00 0.00 0.04 1.27 1.27 2.54
> 2.91 0.00 2.43 0.10 0.01
> dm-18 0.00 0.00 0.01 0.35 0.04 2.80
> 8.00 0.01 25.42 0.03 0.00
> dm-19 0.00 0.00 0.00 0.18 0.01 1.47
> 8.00 0.00 0.42 0.21 0.00
> dm-21 0.00 0.00 0.02 0.01 2.20 0.11
> 65.49 0.00 9.84 3.01 0.01
> dm-26 0.00 0.00 0.01 0.05 0.12 0.43
> 9.21 0.00 11.66 7.05 0.04
> dm-27 0.00 0.00 0.00 0.21 0.02 1.70
> 8.02 0.00 12.09 4.57 0.10
> dm-28 0.00 0.00 0.26 0.11 8.90 0.91
> 26.40 0.01 14.94 1.85 0.07
> dm-29 0.00 0.00 0.05 1.03 1.04
> 8.22 8.56 0.01 13.76 2.48 0.27
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 0.00 0.00 0.00 0.40 0.00 99.60
>
> Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s
> avgrq-sz avgqu-sz await svctm %util
> sda 0.00 2.80 0.00 2.20 0.00 40.00
> 18.18 0.03 12.27 4.73 1.04
> sdb 0.00 0.40 0.00 0.40 0.00 1.60
> 4.00 0.00 5.50 5.50 0.22
> sdc 0.00 0.00 4.80 4.80 14.40 4.80
> 2.00 7.21 1560.12 63.67 61.12
> dm-0 0.00 0.00 0.40 0.40 1.20 0.40
> 2.00 0.60 1559.50 750.25 60.02
> dm-1 0.00 0.00 0.40 0.40 1.20 0.40
> 2.00 0.60 1558.50 750.50 60.04
> dm-2 0.00 0.00 0.40 0.40 1.20 0.40
> 2.00 0.60 1559.50 752.75 60.22
> dm-3 0.00 0.00 0.40 0.40 1.20 0.40
> 2.00 0.60 1562.75 752.25 60.18
> dm-4 0.00 0.00 0.40 0.40 1.20 0.40
> 2.00 0.60 1559.50 752.50 60.20
> dm-5 0.00 0.00 0.40 0.40 1.20 0.40
> 2.00 0.60 1563.00 750.25 60.02
> dm-6 0.00 0.00 0.40 0.40 1.20 0.40
> 2.00 0.60 1558.50 750.25 60.02
> dm-7 0.00 0.00 0.40 0.40 1.20 0.40
> 2.00 0.60 1559.50 752.50 60.20
> dm-8 0.00 0.00 0.40 0.40 1.20 0.40
> 2.00 0.60 1559.75 750.25 60.02
> dm-9 0.00 0.00 0.40 0.40 1.20 0.40
> 2.00 0.60 1554.00 750.25 60.02
> dm-10 0.00 0.00 0.40 0.40 1.20 0.40
> 2.00 0.60 1555.75 752.25 60.18
> dm-12 0.00 0.00 0.40 0.40 1.20 0.40
> 2.00 0.60 1571.25 750.25 60.02
> dm-13 0.00 0.00 0.00 0.80 0.00 1.60
> 2.00 0.01 8.25 2.75 0.22
> dm-18 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-19 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-21 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-26 0.00 0.00 0.00 0.60 0.00 4.80
> 8.00 0.01 12.67 8.33 0.50
> dm-27 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00
> dm-28 0.00 0.00 0.00 1.80 0.00 14.40
> 8.00 0.02 10.22 2.44 0.44
> dm-29 0.00 0.00 0.00 0.80 0.00 6.40
> 8.00 0.01 10.25 3.75 0.30
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 0.05 0.00 0.00 0.00 0.00 99.95
>
> Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s
> avgrq-sz avgqu-sz await svctm %util
> sda 0.00 0.20 0.00 0.60 0.00 6.40
> 10.67 0.01 14.67 6.00 0.36
> sdb 0.00 0.40 0.00 0.40 0.00 1.60
> 4.00 0.00 0.00 0.00 0.00
> sdc 0.00 0.00 4.80 4.80 14.40 4.80
> 2.00 8.81 1292.92 77.06 73.98
> dm-0 0.00 0.00 0.20 0.40 0.60 0.40
> 1.67 0.74 1723.33 1233.00 73.98
> dm-1 0.00 0.00 0.20 0.40 0.60 0.40
> 1.67 0.73 1722.00 1223.33 73.40
> dm-2 0.00 0.00 0.20 0.40 0.60 0.40
> 1.67 0.73 1726.33 1222.00 73.32
> dm-3 0.00 0.00 0.20 0.40 0.60 0.40
> 1.67 0.73 1725.67 1222.00 73.32
> dm-4 0.00 0.00 0.20 0.40 0.60 0.40
> 1.67 0.73 1726.00 1222.00 73.32
> dm-5 0.00 0.00 0.20 0.40 0.60 0.40
> 1.67 0.73 1722.33 1222.00 73.32
> dm-6 0.00 0.00 0.20 0.40 0.60 0.40
> 1.67 0.73 1722.00 1223.67 73.42
> dm-7 0.00 0.00 0.20 0.40 0.60 0.40
> 1.67 0.73 1726.00 1222.00 73.32
> dm-8 0.00 0.00 0.20 0.40 0.60 0.40
> 1.67 0.73 1722.33 1222.00 73.32
> dm-9 0.00 0.00 0.20 0.40 0.60 0.40
> 1.67 0.73 1723.00 1214.33 72.86
> dm-10 0.00 0.00 0.20 0.40 0.60 0.40
> 1.67 0.73 1725.67 1222.00 73.32
> dm-12 0.00 0.00 0.20 0.40 0.60 0.40
> 1.67 0.74 1722.00 1231.67 73.90
> dm-13 0.00 0.00 0.00 0.80 0.00 1.60
> 2.00 0.00 0.00 0.00 0.00
> dm-18 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-19 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-21 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-26 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-27 0.00 0.00 0.00 0.60 0.00 4.80
> 8.00 0.01 13.00 4.33 0.26
> dm-28 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-29 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
>
>
> iostat server2:
>
> [root at impaxdb ~]# iostat -x 5
> Linux 2.6.18-8.el5PAE (impaxdb) 08/24/2007
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 0.48 0.00 0.10 15.70 0.00 83.72
>
> Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s
> avgrq-sz avgqu-sz await svctm %util
> sda 0.28 1.38 0.32 0.82 18.52 17.59
> 31.55 0.00 1.98 0.83 0.10
> sdb 0.01 1.73 0.02 0.04 3.20 14.15
> 297.21 0.00 9.18 0.87 0.01
> sdc 6.44 14.59 3.94 4.26 65.36 126.12
> 23.36 9.52 1160.63 91.33 74.88
> dm-0 0.00 0.00 0.29 0.29 0.89 0.29
> 2.01 0.71 1214.34 1214.01 71.18
> dm-1 0.00 0.00 0.29 0.29 0.89 0.29
> 2.01 0.71 1206.47 1206.38 70.95
> dm-2 0.00 0.00 0.29 0.29 0.89 0.29
> 2.01 0.71 1207.35 1207.27 70.96
> dm-3 0.00 0.00 7.10 9.84 55.33 76.63
> 7.79 25.51 1506.27 43.35 73.42
> dm-4 0.00 0.00 0.32 5.48 1.10 41.82
> 7.39 9.21 1586.36 122.41 71.06
> dm-5 0.00 0.00 0.30 0.88 0.90 5.02
> 5.02 0.72 606.80 600.72 70.89
> dm-6 0.00 0.00 0.29 0.29 0.89 0.29
> 2.01 0.71 1206.90 1206.94 70.91
> dm-7 0.00 0.00 0.29 0.29 0.89 0.29
> 2.01 0.71 1202.65 1202.69 70.82
> dm-8 0.00 0.00 0.29 0.29 0.89 0.29
> 2.01 0.71 1204.47 1204.43 70.84
> dm-9 0.00 0.00 0.29 0.29 0.89 0.29
> 2.01 0.71 1202.38 1202.42 70.77
> dm-10 0.00 0.00 0.29 0.29 0.88 0.29
> 2.01 0.71 1208.53 1208.48 70.93
> dm-12 0.00 0.00 0.30 0.29 0.91 0.29
> 2.04 0.71 1202.82 1202.49 70.92
> dm-13 0.00 0.00 0.00 0.00 0.01 0.00
> 6.99 0.00 0.47 0.06 0.00
> dm-18 0.00 0.00 0.02 1.77 3.16 14.15
> 9.67 0.03 16.69 0.03 0.01
> dm-19 0.00 0.00 0.00 0.00 0.01 0.00
> 8.02 0.00 0.69 0.34 0.00
> dm-20 0.00 0.00 0.05 0.28 3.48 2.26
> 17.18 0.00 3.37 0.47 0.02
> dm-25 0.00 0.00 0.01 0.05 0.16 0.44
> 9.68 0.00 1.20 0.65 0.00
> dm-26 0.00 0.00 0.00 0.14 0.02 1.11
> 8.03 0.00 3.28 0.05 0.00
> dm-27 0.00 0.00 0.31 0.15 9.69 1.24
> 23.61 0.00 9.39 0.88 0.04
> dm-28 0.00 0.00 0.06 1.08 1.24
> 8.61 8.65 0.00 1.04 0.21 0.02
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 0.05 0.00 0.05 23.62 0.00 76.27
>
> Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s
> avgrq-sz avgqu-sz await svctm %util
> sda 0.00 4.85 0.00 2.22 0.00 56.57
> 25.45 0.00 0.91 0.36 0.08
> sdb 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> sdc 0.00 1.21 4.85 5.45 14.55 24.24
> 3.76 12.51 1556.98 94.24 97.09
> dm-0 0.00 0.00 0.20 0.40 0.61 0.40
> 1.67 0.97 2055.67 1602.00 97.09
> dm-1 0.00 0.00 0.20 0.40 0.61 0.40
> 1.67 0.96 2064.67 1589.00 96.30
> dm-2 0.00 0.00 0.20 0.40 0.61 0.40
> 1.67 0.96 2063.67 1582.67 95.92
> dm-3 0.00 0.00 0.20 0.40 0.61 0.40
> 1.67 4.79 8988.33 1582.00 95.88
> dm-4 0.00 0.00 0.20 1.21 0.61 6.87
> 5.29 0.96 886.57 679.14 96.04
> dm-5 0.00 0.00 0.20 1.21 0.61 6.87
> 5.29 0.96 878.00 680.00 96.16
> dm-6 0.00 0.00 0.20 0.40 0.61 0.40
> 1.67 0.97 2055.67 1593.00 96.55
> dm-7 0.00 0.00 0.20 0.40 0.61 0.40
> 1.67 0.96 2064.67 1584.33 96.02
> dm-8 0.00 0.00 0.20 0.40 0.61 0.40
> 1.67 0.96 2064.67 1586.33 96.14
> dm-9 0.00 0.00 0.20 0.40 0.61 0.40
> 1.67 0.96 2064.67 1583.33 95.96
> dm-10 0.00 0.00 0.20 0.40 0.61 0.40
> 1.67 0.97 2055.67 1597.67 96.83
> dm-12 0.00 0.00 0.20 0.40 0.61 0.40
> 1.67 0.97 2071.67 1595.67 96.71
> dm-13 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-18 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-19 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-20 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-25 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-26 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-27 0.00 0.00 0.00 0.81 0.00 6.46
> 8.00 0.00 0.00 0.00 0.00
> dm-28 0.00 0.00 0.00 4.85 0.00
> 38.79 8.00 0.01 2.17 0.17 0.08
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 0.00 0.00 0.00 19.85 0.00 80.15
>
> Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s
> avgrq-sz avgqu-sz await svctm %util
> sda 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> sdb 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> sdc 0.00 0.61 0.00 0.00 0.00 0.00
> 0.00 9.12 0.00 0.00 80.26
> dm-0 0.00 0.00 0.20 0.00 0.61 0.00
> 3.00 0.65 0.00 3196.00 64.70
> dm-1 0.00 0.00 0.20 0.00 0.61 0.00
> 3.00 0.65 0.00 3235.00 65.49
> dm-2 0.00 0.00 0.20 0.00 0.61 0.00
> 3.00 0.66 0.00 3254.00 65.87
> dm-3 0.00 0.00 0.40 0.81 2.23 6.48
> 7.17 3.29 0.00 660.83 80.26
> dm-4 0.00 0.00 0.20 0.00 0.61 0.00
> 3.00 0.66 0.00 3248.00 65.75
> dm-5 0.00 0.00 0.20 0.00 0.61 0.00
> 3.00 0.66 0.00 3242.00 65.63
> dm-6 0.00 0.00 0.20 0.00 0.61 0.00
> 3.00 0.65 0.00 3223.00 65.24
> dm-7 0.00 0.00 0.20 0.00 0.61 0.00
> 3.00 0.66 0.00 3249.00 65.77
> dm-8 0.00 0.00 0.20 0.00 0.61 0.00
> 3.00 0.66 0.00 3243.00 65.65
> dm-9 0.00 0.00 0.20 0.00 0.61 0.00
> 3.00 0.66 0.00 3252.00 65.83
> dm-10 0.00 0.00 0.20 0.00 0.61 0.00
> 3.00 0.65 0.00 3209.00 64.96
> dm-12 0.00 0.00 0.20 0.00 0.61 0.00
> 3.00 0.65 0.00 3215.00 65.08
> dm-13 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-18 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-19 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-20 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-25 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-26 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-27 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00
> dm-28 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00
>
> top server1:
>
>
>
> Tasks: 217 total, 1 running, 214 sleeping, 0 stopped, 2 zombie
> Cpu(s): 0.1%us, 0.0%sy, 0.0%ni, 99.4%id, 0.4%wa, 0.0%hi,
> 0.0%si, 0.0%st
> Mem: 4084444k total, 1323728k used, 2760716k free, 120072k
> buffers
> Swap: 8193020k total, 0k used, 8193020k free, 872284k
> cached
>
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 14245 root 16 0 2288 988 704 R 2 0.0 0:00.01 top
> 1 root 15 0 2036 652 564 S 0 0.0 0:01.13 init
> 2 root RT 0 0 0 0 S 0 0.0 0:00.00
> migration/0
> 3 root 34 19 0 0 0 S 0 0.0 0:00.46
> ksoftirqd/0
> 4 root RT 0 0 0 0 S 0 0.0 0:00.00
> watchdog/0
> 5 root RT 0 0 0 0 S 0 0.0 0:00.00
> migration/1
> 6 root 34 19 0 0 0 S 0 0.0 0:00.07
> ksoftirqd/1
> 7 root RT 0 0 0 0 S 0 0.0 0:00.00
> watchdog/1
> 8 root RT 0 0 0 0 S 0 0.0 0:00.00
> migration/2
> 9 root 34 19 0 0 0 S 0 0.0 0:00.19
> ksoftirqd/2
> 10 root RT 0 0 0 0 S 0 0.0 0:00.00
> watchdog/2
> 11 root RT 0 0 0 0 S 0 0.0 0:00.00
> migration/3
> 12 root 34 19 0 0 0 S 0 0.0 0:00.23
> ksoftirqd/3
> 13 root RT 0 0 0 0 S 0 0.0 0:00.00
> watchdog/3
> 14 root 10 -5 0 0 0 S 0 0.0 0:00.00 events/0
> 15 root 10 -5 0 0 0 S 0 0.0 0:00.00 events/1
> 16 root 10 -5 0 0 0 S 0 0.0 0:00.00 events/2
> 17 root 10 -5 0 0 0 S 0 0.0 0:00.00 events/3
> 18 root 19 -5 0 0 0 S 0 0.0 0:00.00 khelper
> 19 root 10 -5 0 0 0 S 0 0.0 0:00.00 kthread
> 25 root 10 -5 0 0 0 S 0 0.0 0: 00.00
> kblockd/0
> 26 root 10 -5 0 0 0 S 0 0.0 0:00.04 kblockd/1
> 27 root 10 -5 0 0 0 S 0 0.0 0:00.00 kblockd/2
> 28 root 10 -5 0 0 0 S 0 0.0 0: 00.06
> kblockd/3
> 29 root 14 -5 0 0 0 S 0 0.0 0:00.00 kacpid
> 147 root 14 -5 0 0 0 S 0 0.0 0:00.00 cqueue/0
> 148 root 14 -5 0 0 0 S 0 0.0 0:00.00 cqueue/1
> 149 root 14 -5 0 0 0 S 0 0.0 0:00.00 cqueue/2
> 150 root 14 -5 0 0 0 S 0 0.0 0:00.00 cqueue/3
> 153 root 10 -5 0 0 0 S 0 0.0 0:00.00 khubd
> 155 root 10 -5 0 0 0 S 0 0.0 0:00.00 kseriod
> 231 root 19 0 0 0 0 S 0 0.0 0:00.00 pdflush
> 232 root 15 0 0 0 0 S 0 0.0 0:00.15 pdflush
> 233 root 14 -5 0 0 0 S 0 0.0 0:00.00 kswapd0
> 234 root 14 -5 0 0 0 S 0 0.0 0:00.00 aio/0
> 235 root 14 -5 0 0 0 S 0 0.0 0:00.00 aio/1
> 236 root 14 -5 0 0 0 S 0 0.0 0:00.00 aio/2
>
>
> top server2:
>
> Tasks: 264 total, 1 running, 260 sleeping, 0 stopped, 3 zombie
> Cpu(s): 0.5%us, 0.1%sy, 0.0%ni, 83.7%id, 15.7%wa, 0.0%hi,
> 0.0%si, 0.0%st
> Mem: 4084444k total, 3941216k used, 143228k free, 46608k
> buffers
> Swap: 8193020k total, 24660k used, 8168360k free, 3652864k
> cached
>
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 9507 root 15 0 2292 1020 704 R 2 0.0 0:00.01 top
> 1 root 15 0 2032 652 564 S 0 0.0 0:01.20 init
> 2 root RT 0 0 0 0 S 0 0.0 0:00.00
> migration/0
> 3 root 34 19 0 0 0 S 0 0.0 0:00.25
> ksoftirqd/0
> 4 root RT 0 0 0 0 S 0 0.0 0:00.00
> watchdog/0
> 5 root RT 0 0 0 0 S 0 0.0 0:00.00
> migration/1
> 6 root 34 19 0 0 0 S 0 0.0 0:00.42
> ksoftirqd/1
> 7 root RT 0 0 0 0 S 0 0.0 0:00.00
> watchdog/1
> 8 root RT 0 0 0 0 S 0 0.0 0:00.00
> migration/2
> 9 root 34 19 0 0 0 S 0 0.0 0:00.56
> ksoftirqd/2
> 10 root RT 0 0 0 0 S 0 0.0 0:00.00
> watchdog/2
> 11 root RT 0 0 0 0 S 0 0.0 0:00.00
> migration/3
> 12 root 39 19 0 0 0 S 0 0.0 0:00.08
> ksoftirqd/3
> 13 root RT 0 0 0 0 S 0 0.0 0:00.00
> watchdog/3
> 14 root 10 -5 0 0 0 S 0 0.0 0:00.03 events/0
> 15 root 10 -5 0 0 0 S 0 0.0 0:00.00 events/1
> 16 root 10 -5 0 0 0 S 0 0.0 0:00.02 events/2
> 17 root 10 -5 0 0 0 S 0 0.0 0:00.02 events/3
> 18 root 10 -5 0 0 0 S 0 0.0 0:00.00 khelper
> 19 root 11 -5 0 0 0 S 0 0.0 0:00.00 kthread
> 25 root 10 -5 0 0 0 S 0 0.0 0: 00.08
> kblockd/0
> 26 root 10 -5 0 0 0 S 0 0.0 0:00.00 kblockd/1
> 27 root 10 -5 0 0 0 S 0 0.0 0:00.00 kblockd/2
> 28 root 10 -5 0 0 0 S 0 0.0 0: 00.08
> kblockd/3
> 29 root 18 -5 0 0 0 S 0 0.0 0:00.00 kacpid
> 147 root 18 -5 0 0 0 S 0 0.0 0:00.00 cqueue/0
> 148 root 20 -5 0 0 0 S 0 0.0 0:00.00 cqueue/1
> 149 root 10 -5 0 0 0 S 0 0.0 0:00.00 cqueue/2
> 150 root 10 -5 0 0 0 S 0 0.0 0:00.00 cqueue/3
> 153 root 10 -5 0 0 0 S 0 0.0 0:00.00 khubd
> 155 root 10 -5 0 0 0 S 0 0.0 0:00.00 kseriod
> 233 root 15 -5 0 0 0 S 0 0.0 0:00.84 kswapd0
> 234 root 20 -5 0 0 0 S 0 0.0 0:00.00 aio/0
> 235 root 20 -5 0 0 0 S 0 0.0 0:00.00 aio/1
> 236 root 20 -5 0 0 0 S 0 0.0 0:00.00 aio/2
> 237 root 20 -5 0 0 0 S 0 0.0 0:00.00 aio/3
> 409 root 11 -5 0 0 0 S 0 0.0 0:00.00 kpsmoused
>
> slabtop server1:
>
> Active / Total Objects (% used) : 301060 / 312027 (96.5%)
> Active / Total Slabs (% used) : 12055 / 12055 (100.0%)
> Active / Total Caches (% used) : 106 / 146 (72.6%)
> Active / Total Size (% used) : 45714.46K / 46814.27K (97.7%)
> Minimum / Average / Maximum Object : 0.01K / 0.15K / 128.00K
>
> OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME
> 148176 148095 99% 0.05K 2058 72 8232K buffer_head
> 44573 44497 99% 0.13K 1537 29 6148K dentry_cache
> 32888 32878 99% 0.48K 4111 8 16444K
> ext3_inode_cache
> 10878 10878 100% 0.27K 777 14 3108K radix_tree_node
> 7943 7766 97% 0.02K 47 169 188K dm_io
> 7917 7766 98% 0.02K 39 203 156K dm_tio
> 6424 5414 84% 0.09K 146 44 584K vm_area_struct
> 6384 6223 97% 0.04K 76 84 304K sysfs_dir_cache
> 5989 5823 97% 0.03K 53 113 212K size-32
> 5074 4833 95% 0.06K 86 59 344K size-64
> 4488 4488 100% 0.33K 408 11 1632K inode_cache
> 2610 2561 98% 0.12K 87 30 348K size-128
> 2540 1213 47% 0.01K 10 254 40K anon_vma
> 2380 1475 61% 0.19K 119 20 476K filp
> 1430 1334 93% 0.35K 130 11 520K
> proc_inode_cache
> 1326 1031 77% 0.05K 17 78 68K
> selinux_inode_security
> 1320 1304 98% 0.25K 88 15 352K size-256
> 1015 629 61% 0.02K 5 203 20K biovec-1
> 1008 125 12% 0.05K 14 72 56K journal_head
> 930 841 90% 0.12K 31 30 124K bio
> 920 666 72% 0.19K 46 20 184K
> skbuff_head_cache
> 798 757 94% 2.00K 399 2 1596K size-2048
> 791 690 87% 0.03K 7 113 28K ocfs2_em_ent
> 784 748 95% 0.50K 98 8 392K size-512
> 590 503 85% 0.06K 10 59 40K biovec-4
> 564 562 99% 0.88K 141 4 564K
> ocfs2_inode_cache
> 546 324 59% 0.05K 7 78 28K delayacct_cache
> 531 497 93% 0.43K 59 9 236K
> shmem_inode_cache
> 520 487 93% 0.19K 26 20 104K biovec-16
> 505 327 64% 0.04K 5 101 20K pid
> 500 487 97% 0.75K 100 5 400K biovec-64
> 460 376 81% 0.04K 5 92 20K Acpi-Operand
> 452 104 23% 0.03K 4 113 16K pgd
> 347 347 100% 4.00K 347 1 1388K size-4096
> 338 303 89% 0.02K 2 169 8K Acpi-Namespace
> 336 175 52% 0.04K 4 84 16K crq_pool
>
>
> slabtop server2:
>
>
> Active / Total Objects (% used) : 886188 / 907066 (97.7%)
> Active / Total Slabs (% used) : 20722 / 20723 (100.0%)
> Active / Total Caches (% used) : 104 / 147 (70.7%)
> Active / Total Size (% used) : 76455.01K / 78620.30K (97.2%)
> Minimum / Average / Maximum Object : 0.01K / 0.09K / 128.00K
>
> OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME
> 736344 729536 99% 0.05K 10227 72 40908K buffer_head
> 37671 34929 92% 0.13K 1299 29 5196K dentry_cache
> 32872 32666 99% 0.48K 4109 8 16436K
> ext3_inode_cache
> 20118 20097 99% 0.27K 1437 14 5748K radix_tree_node
> 10912 9437 86% 0.09K 248 44 992K vm_area_struct
> 7714 7452 96% 0.02K 38 203 152K dm_tio
> 7605 7452 97% 0.02K 45 169 180K dm_io
> 6552 6475 98% 0.04K 78 84 312K sysfs_dir_cache
> 5763 5461 94% 0.03K 51 113 204K size-32
> 4661 4276 91% 0.06K 79 59 316K size-64
> 4572 3569 78% 0.01K 18 254 72K anon_vma
> 4440 3770 84% 0.19K 222 20 888K filp
> 2288 1791 78% 0.35K 208 11 832K
> proc_inode_cache
> 1980 1884 95% 0.12K 66 30 264K size-128
> 1804 1471 81% 0.33K 164 11 656K inode_cache
> 1404 1046 74% 0.05K 18 78 72K
> selinux_inode_security
> 1060 670 63% 0.19K 53 20 212K
> skbuff_head_cache
> 904 767 84% 0.03K 8 113 32K ocfs2_em_ent
> 870 870 100% 0.12K 29 30 116K bio
> 840 816 97% 0.50K 105 8 420K size-512
> 812 578 71% 0.02K 4 203 16K biovec-1
> 810 800 98% 0.25K 54 15 216K size-256
> 800 761 95% 2.00K 400 2 1600K size-2048
> 549 514 93% 0.43K 61 9 244K
> shmem_inode_cache
> 546 289 52% 0.05K 7 78 28K delayacct_cache
> 531 478 90% 0.06K 9 59 36K biovec-4
> 520 471 90% 0.19K 26 20 104K biovec-16
> 505 292 57% 0.04K 5 101 20K pid
> 490 479 97% 0.75K 98 5 392K biovec-64
> 460 376 81% 0.04K 5 92 20K Acpi-Operand
> 452 175 38% 0.03K 4 113 16K pgd
> 440 357 81% 0.38K 44 10 176K
> sock_inode_cache
> 369 303 82% 0.44K 41 9 164K UNIX
> 360 320 88% 1.00K 90 4 360K size-1024
> 354 124 35% 0.06K 6 59 24K fs_cache
> 351 351 100% 4.00K 351 1 1404K pmd
>
> uptime server1:
>
> [root at impax ~]# uptime
> 10:21:09 up 18:16, 1 user, load average: 7.22, 7.72, 7.83
>
> uptime server2:
>
> [root at impaxdb ~]# uptime
> 10:21:17 up 18:16, 1 user, load average: 8.79, 9.02, 8.98
>
> yours
>
> arnold
>
> On 8/24/07, *Alexei_Roudnev* <Alexei_Roudnev at exigengroup.com
> <mailto:Alexei_Roudnev at exigengroup.com>> wrote:
>
> Run and send here, please:
>
> vmstat 5
> (5 lines)
>
> iostat -x 5
> (2 - 3 outputs)
>
> top
> (1 screen)
>
> slabtop (or equivalent, I dont remember)
>
>
> ----- Original Message -----
>
> *From:* Arnold Maderthaner
> <mailto:arnold.maderthaner at j4care.com>
> *To:* Sunil Mushran <mailto:Sunil.Mushran at oracle.com> ;
> ocfs2-users at oss.oracle.com
> <mailto:ocfs2-users at oss.oracle.com>
> *Sent:* Thursday, August 23, 2007 4:12 AM
> *Subject:* Re: [Ocfs2-users] Slow concurrent actions on
> the same LVM logicalvolume
>
>
> Hi !
>
> I watched the servers today and noticed that the server
> load is very high but not much is working on the server:
> server1:
> 16:37:11 up 32 min, 1 user, load average: 6.45, 7.90, 7.45
> server2:
> 16:37:19 up 32 min, 4 users, load average: 9.79, 9.76, 8.26
> i also tried to do some selects on the oracle database today.
> to do a "select count(*) from xyz" where xyz has 120 000
> rows it took me about 10 sec.
> always the process who does the filesystem access is the
> first one.
> and every command (ls,du,vgdisplay,lvdisplay,dd,cp,....)
> which needs access to a ocfs2 filesystem seams like
> blocking or it seams to me that there is a lock.
> Can anyone please help me ?
>
> yours
>
> Arnold
>
> On 8/22/07, *Arnold Maderthaner*
> <arnold.maderthaner at j4care.com
> <mailto:arnold.maderthaner at j4care.com>> wrote:
>
> There is not really a high server load when writing to
> the disks but will try it asap. what do you mean with
> AST ?
> Can I enable some debuging on ocfs2 ? We have 2 Dell
> servers with about 4gb of ram each and 2 Dual Core
> CPUs with 2GHZ each.
> Can you please describe which tests todo again ?
>
> Thx for your help
>
> Arnold
>
>
> On 8/22/07, *Sunil Mushran *< Sunil.Mushran at oracle.com
> <mailto:Sunil.Mushran at oracle.com>> wrote:
>
> Repeat the first test. This time run top on the
> first server. Which
> process is eating the cpu? From the time it
> appears that the second
> server is waiting for the AST that the first
> server is slow to send. And
> it could be slow because it may be busy flushing
> the data to disk.
> How much memory/cpu do these servers have?
>
> As far as the second test goes, what is the
> concurrent write performance
> directly to the LV (minus fs).
>
> On Wed, Aug 22, 2007 at 01:14:02PM +0530, Arnold
> Maderthaner wrote:
> > Hi 2 all !
> >
> > I have problems with concurrent filesystem
> actions on a ocfs2
> > filesystem which is mounted by 2 nodes. OS=RH5ES
> and OCFS2= 1.2.6
> > F.e.: If I have a LV called testlv which is
> mounted on /mnt on both
> > servers and I do a "dd if=/dev/zero
> of=/mnt/test.a bs=1024
> > count=1000000" on server 1 and do at the same
> time a du -hs
> > /mnt/test.a it takes about 5 seconds for du -hs
> to execute:
> > 270M test.a
> >
> > real 0m3.627s
> > user 0m0.000s
> > sys 0m0.002s
> >
> > or even longer. If i do a du -hs ond a file which
> is not written by
> > another server its fast:
> > 977M test.b
> >
> > real 0m0.001s
> > user 0m0.001s
> > sys 0m0.000s
> >
> > If I write 2 different files from both servers to
> the same LV I get
> > only 2.8mb/sec.
> > If I write 2 different files from both servers to
> a different LV
> > (testlv,test2lv) then I get about 30mb/sec on
> each write (so 60mb/sec
> > combined which is very good).
> > does anyone has an idea what could be wrong. Are
> there any mount
> > options for ocfs2 which could help me? is this a
> lvm2 or ocfs2 problem
> > (locking,blocking,.... issue) ?
> >
> > Any help will be appriciated.
> >
> > yours
> >
> > Arnold
> > --
> > Arnold Maderthaner
> > J4Care Inc.
> >
> > _______________________________________________
> > Ocfs2-users mailing list
> > Ocfs2-users at oss.oracle.com
> <mailto:Ocfs2-users at oss.oracle.com>
> > http://oss.oracle.com/mailman/listinfo/ocfs2-users
> <http://oss.oracle.com/mailman/listinfo/ocfs2-users>
>
>
>
>
> --
> Arnold Maderthaner
> J4Care Inc.
>
>
>
>
> --
> Arnold Maderthaner
> J4Care Inc.
>
> ------------------------------------------------------------------------
> _______________________________________________
> Ocfs2-users mailing list
> Ocfs2-users at oss.oracle.com <mailto:Ocfs2-users at oss.oracle.com>
> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>
>
>
>
> --
> Arnold Maderthaner
> J4Care Inc.
>
>
>
>
> --
> Arnold Maderthaner
> J4Care Inc.
> ------------------------------------------------------------------------
>
> _______________________________________________
> Ocfs2-users mailing list
> Ocfs2-users at oss.oracle.com
> http://oss.oracle.com/mailman/listinfo/ocfs2-users
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