alpha 8400 slow - vmstat -s shows large no. page faults

From: SSridhar <ssridhar_at_raven.pnu.com>
Date: Thu, 12 Jul 2001 18:06:19 -0400

This system is running 4.0G and very sluggish

Virtual Memory Statistics: (pagesize = 8192)
    112285 active pages
    261990 inactive pages
    229166 free pages
     94206 wired pages
102243726720 virtual memory page faults
  15282601 copy-on-write page faults
  85238040 zero fill page faults
   3954465 reattaches from reclaim list
 122684781 pages paged in
    523299 pages paged out
11671637208 task and thread context switches
2018357838 device interrupts
85583682813 system calls

swapon -s
Swap partition /dev/re0b:
    Allocated space: 256000 pages (2000MB)
    In-use space: 256000 pages (100%)
    Free space: 0 pages ( 0%)

Swap partition /dev/rzd0c:
    Allocated space: 2221084 pages (17352MB)
    In-use space: 478894 pages ( 21%)
    Free space: 1742190 pages ( 78%)


Total swap allocation:
    Allocated space: 2477084 pages (19352MB)
    In-use space: 734894 pages ( 29%)
    Available space: 1742190 pages ( 70%)

'top' shows half of 8GB main memory is being used. I cannot find any
culprits in top or 'ps aux'. How do I go about diagnosing this problem?

thanks
Sridhar
Received on Thu Jul 12 2001 - 22:07:16 NZST

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