I am trying to decipher the output of vmstat as part of diagnosing load
levels on our Alpha 2100. The box is configured with 512 meg of RAM and
is runnig DU 4.0b
The primary use is email -- supporting interactive logons using PINE
3.96 and as a POP host.
I have pasted output from uptime and vmstat below. The vmstat output
might be hard to read due to formatting, but the question I have is
specific to the procs columns. From my understanding of System
Performance, the 'w' column stats indicated that swapping is occuring
if it contains a non-zero value -- as mine does. First, is this a
correct interpretation on a DU box?
Second, my Digital support rep is concerned that my cpu times are always
skewed in terms of the sys rather than user. On my other DU systems,
user time is always greater than system time. Is this a funciton of a
system in swap mode? or due to heavy paging?
Any insights would be greatly appreciated!
root.selway> uptime
11:40 up 66 days, 16:04, 131 users, load average: 11.32, 6.51,
5.7715.29
root.selway> vmstat 1
Virtual Memory Statistics: (pagesize = 8192)
procs memory pages intr cpu
r w u act free wire fault cow zero react pin pout in sy cs us
sy id
(cummulative values deleted)
5488 24 49K 1686 23K 1166 96 798 0 106 0 871 10K 2K 14
46 40
4491 23 49K 1450 24K 1649 316 798 0 314 0 938 24K 2K 15
55 30
4493 24 49K 1445 24K 1185 165 745 0 165 0 769 16K 2K 15
62 24
10486 24 49K 1491 24K 2203 459 954 0 417 0 1K 27K 2K 14
49 37
6485 27 48K 1965 24K 2471 517 1034 0 410 0 990 14K 2K 16
55 29
8491 24 49K 1463 24K 913 108 576 0 173 0 1K 13K 4K 17
57 25
6489 24 49K 1278 24K 2181 362 1052 0 330 0 1K 5K 3K 20
53 27
Received on Tue Sep 22 1998 - 17:48:57 NZST