Hi,
Thanks a lot :
Dr Thomas Blinn
Weirick, Robert
I must wait for a planified shutdown of these servers to check the
hardware config, so i don't really know for the moment. Below the two
answers.
-------------------------------------------------------------------------------
Difference is because of differences in what's reported to the kernel
by the console firmware. Probably two different memory parts -- in
one system, I bet you have one set of memory modules that provide the
full 512MB, in the other you have four sets (at 256MB each), but I'd
have to look at the console's "show config" output to know for sure.
Dr Thomas Blinn
-------------------------------------------------------------------------------
You can see that in both instances, the 'os' adds up to the available
memory left after 'pal' allocation.
It would be interesting to know what the physical configuration of
your
memory bank(s) is/are.
I'm wondering if that's what drives the 'presentation' break up.
(You can find out what your config is by running 'dia -R > /tmp/myconfig.txt',
and then go through the boot up sequence where hw config info is reported).
Weirick, Robert
-------------------------------------------------------------------------------
And my original post :
>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 Wed Mar 13 2002 - 15:26:25 NZDT