From: Sun Fire (starcat524@yahoo.com)
Date: Mon Aug 19 2002 - 11:15:02 EDT
Dear Sun Managers,
I've an E1000 with Solaris 2.6.
I'm trying to understand and study the system
performance. When I run vmstat as I've excerpted some
of the result as shown below. I found out "po" column
that has non-zero value. What does this means and
does this indicates that it is a paging activity ? Is
it normal to have always non-zero and what should be
the value be before hitting any performance issue?
# vmstat 3 10
procs memory page disk
faults cpu
r b w swap free re mf pi po fr de sr s0 s1 sd sd
in sy cs us sy id
1 0 0 13212 12752 0 0 0 0 0 0 0 6 3 23 22
4294967196 0 0 -107 -22 -
99
2 3 0 2132446 97440 6 1425 32 13 13 0 0 5 0 7 4
3864 21600 8029 70 12 18
0 3 0 2132232 97016 13 0 64 149 146 0 0 14 4 5 20
3689 17277 8147 72 8 20
1 3 0 2133544 97392 4 82 45 2 2 0 0 29 19 2 34
4027 20051 8481 63 11 26
1 2 0 2135376 98672 5 346 37 0 0 0 0 3 0 11 24
5245 23851 8495 71 11 17
1 3 0 2134128 97500 1 372 8 80 80 0 0 4 0 4 11
4298 21022 8360 69 8 23
0 4 0 2133560 96608 0 103 0 2 2 0 0 0 0 10 14
4123 31478 8824 64 8 27
1 3 0 2133944 96680 0 18 0 13 13 0 0 0 0 21 13
4629 33861 10982 62 8 29
2 2 0 2129672 94832 2 847 5 98 562 0 218 2 1 13 7
5765 34613 12137 72 12 16
1 3 0 2131312 106896 1 19 90 32 117 0 35 2 2 5 17
4918 30260 9739 75 11 15
Also, when I perform "sar -p", there is also alot of
page fault. Is it a sign of memory resources issue?
# sar -p 3 10
18:15:32 atch/s pgin/s ppgin/s pflt/s vflt/s
slock/s
18:15:35 0.65 0.32 0.32 257.23 530.87
0.00
18:15:38 0.66 0.32 0.32 1333.12 2418.18
0.00
18:15:41 16.34 6.21 7.84 12.09 39.22
0.00
18:15:44 1.65 1.30 1.30 14.01 19.22
0.00
18:15:47 0.00 0.00 0.00 84.09 141.23
0.00
18:15:50 0.00 0.00 0.00 1.30 0.00
0.00
18:15:54 0.00 0.00 0.00 0.00 0.65
0.00
18:15:57 0.00 0.00 0.00 22.26 40.65
0.00
18:16:00 0.00 0.00 0.00 1.95 0.32
0.00
18:16:03 3.85 0.00 0.00 843.59 2883.97
122.44
Average 2.30 0.81 0.97 257.98 610.89
12.39
Highly appreciate someone can enlighten me. TIA.
Regards,
Tim
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