Conference turris::digital_unix

9968.0. "max-vnodes value" by TKTV20::ASANO () Wed May 28 1997 08:50

Hi.

I have two question about 'max-vnodes'. 

1. 
My Workstation (DEC300/500) has 96Mbyte memory. 
When I execute 'sysconfig -q vfs', following results was apperaed. 
How shall I calculate 'max-vnodes' 's value? 
As additional information, this machine is not set the 'max-vnodes' value 
any. ( For example, /etc/sysconfigtab )
Perhaps, 'max-vnodes = 10000' is this machine default value, may be.  
According to manual, this value is that maximum is the number of vnodes that 
will fit into 5 percent of available memory. 

2, 
I want to know limit value of 'max-vnodes'. 
If there is the limit value, please teach me how to calculate this value. 


[INFORMATION] 

#sysconfig -q vfs
name-cache-size = 5957
name-cache-hash-size = 256
buffer-hash-size = 512
special-vnode-alias-tbl-size = 64
bufcache = 3
path-num-max = 64
sys-v-mode = 0
ucred-max = 256
nvnode = 2708
max-vnodes = 10000
min-free-vnodes = 2708
vnode-age = 120
namei-cache-valid-time = 1200
max-free-file-structures = 0
max-ufs-mounts = 1000
vnode-deallocation-enable = 1
pipe-maxbuf-size = 65536
pipe-single-write-max = -1
pipe-databuf-size = 8192
pipe-max-bytes-all-pipes = 81920000
                            



Best Regards. 
Thanks. 
Minoru Asano kc2/CSC/MCS