Subject: metadata buffers
To: None <current-users@netbsd.org>
From: Andrew Gillham <gillham@vaultron.com>
List: current-users
Date: 12/27/2001 17:39:21
Hello,

Looking at my i386 box with 1.5GB of RAM, I see that the "metadata buffer"
use is always 100%:
                    /0   /1   /2   /3   /4   /5   /6   /7   /8   /9   /10
     Load Average   >>>>>>>>>>>>>>>>>>

There are   6144 metadata buffers using             78720 kBytes of memory.
There are 213862 pages for cached file data using  855448 kBytes of memory.
There are    978 pages for executables using         3912 kBytes of memory.

File System          Bufs used   %   kB in use   %  Bufsize kB   %  Util %
/usr                      3560  57        9505  12       45688  58      20
/                         2582  42       19540  24       33004  41      59
/net                         1   0           8   0          16   0      50
/home                        1   0           8   0          12   0      66

Total:                    6144 100       29061  36       78720 100      36


I'm wondering how much this is affecting performance, especially considering
that almost half of the buffers are used on /, while I am currently
running a 'make build' in /usr/src.
Are there any stats available on buffer misses, or the rate of buffers
being recycled?

-Andrew