[Q] Output of "vmstat -P"

From: <tru64_at_meloo.com>
Date: Mon, 11 Mar 2002 17:47:54 +0000 (fr)

Hi managers,

I have a question about the vmstat -P output :

On one host ( AlphaServer 1000 - 1x533MHz - 1GB RAM )

host1:/# vmstat -P

Total Physical Memory = 1024.00 M
                      = 131072 pages

Physical Memory Clusters:

 start_pfn end_pfn type size_pages / size_bytes
         0 256 pal 256 / 2.00M
       256 32768 os 32512 / 254.00M
     65536 98304 os 32768 / 256.00M
    131072 163840 os 32768 / 256.00M
    196608 229373 os 32765 / 255.98M
    229373 229376 pal 3 / 24.00k

And on another host ( AlphaServer 1000 - 1x533MHz - 512 MB RAM ) i
have :

host2:/# vmstat -P

Total Physical Memory = 512.00 M
                      = 65536 pages


Physical Memory Clusters:

 start_pfn end_pfn type size_pages / size_bytes
         0 224 pal 224 / 1.75M
       224 65511 os 65287 / 510.05M
     65511 65536 pal 25 / 200.00k


What about the "OS type Physical cluster" ? Why 4 on 1 host and 1 on
the other host ? Why 256 MB or 512 MB segment length ?

The vmstat man page is not really explicit...

Thanks for your help.

Arnaud.

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Received on Mon Mar 11 2002 - 15:10:43 NZDT