system slowdown - vnode related

[Masachika ISHIZUKA]

>>   I have still vnodes problem in 4.8-stable with /sys/kern/vfs_subr.c
>> 1.249.2.30.
>> 
>> (1) #1 machine (Celeron 466 with 256 mega byte rams)
>> 
>>   % sysctl kern.maxvnodes
>>   kern.maxvnodes: 17979
>>   % sysctl vm.zone | grep VNODE
>>   VNODE:           192,        0,  18004,    122,    18004
> 
> This looks pretty normal to me for a quiescent system.

  Hi, David-san.
  Thank you for mail.
  I think the used(18004) exceeds maxvnodes(17979), isn't it ?

> I would actually suggest raising maxvnodes if you have lots of
> little files.  Does the number of vnodes shoot up when 310.locate
> runs?

  The value shown above is the value at slow down time of 310.locate.
The number of used vnodes is low at boot up until 310.locate invoked.

> Did you get a backtrace from the panics?

  It's too hard for me. Is there any way to do it ?

-- 
ishizuka at ish.org