From: Simon (simon.zcyuan@gmail.com)
Date: Mon Sep 17 2007 - 02:19:50 EDT
Gurus,
Our solaris 9 is runing into trouble,that we found the "w" column in
'vmstat' output always kept very high,and reach to 70,sometimes up to
78,as:
# vmstat 2
kthr memory page disk faults cpu
r b w swap free re mf pi po fr de sr s0 s1 s2 s3 in sy cs us sy id
0 0 70 63627184 31472752 326 2238 0 56 56 0 0 12 0 0 12 16323 76495
20587 18 15 66
0 0 70 63627104 31472968 1015 6954 0 171 171 0 0 21 0 0 21 16351
84333 20565 16 17 67
0 2 70 63627176 31473432 832 5714 0 143 143 0 0 18 0 0 18 15583 77438
19683 16 17 67
# sar -q 1 2
14:13:29 runq-sz %runocc swpq-sz %swpocc
14:13:30 0.0 0 70.0 94
14:13:31 0.0 0 70.0 95
Generally,higher "w" indicates the physical memory shortage,but it's
not the case in fact,we have 48G memory populated,and abundant free
memory:
# netstat -k system_pages |grep pagesfree
pp_kernel 344545 pagesfree 3933796 pageslocked 1192472 pagestotal 6038433
I suspected it may be caused by an unkown process,it locked something
that should have freed,but how to know the procee ?
Any helps are appciated.
Thanks.
Simon
Average 0.0 0 70.0 95
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