7.1 hangs, shutdown terminated
Jeremy Chadwick
koitsu at FreeBSD.org
Fri Oct 10 09:17:41 UTC 2008
On Fri, Oct 10, 2008 at 11:13:00AM +0200, Laszlo Nagy wrote:
> Johan Hendriks írta:
>> If find / -sx is running and is consuming all CPU, what is the value of
>> vfs.ufs.dirhash_mem:
>>
>> # sysctl -a | grep dirhash
>>
> shopzeus# sysctl -a | grep dirhash
> vfs.ufs.dirhash_docheck: 0
> vfs.ufs.dirhash_mem: 2095818
> vfs.ufs.dirhash_maxmem: 2097152
> vfs.ufs.dirhash_minsize: 2560
>
>> Make sure vfs.ufs.dirhash_mem: is not close to vfs.ufs.dirhash_maxmem:
>>
> All right. It is close to it. Which one should I increase? I put this
> into /etc/sysctl.conf:
>
>
> vfs.ufs.dirhash_maxmem=8228608
>
> Would it be scufficient?
We don't know, and can't tell you. You'll have to monitor
vfs.ufs.dirhash_mem occasionally to see if you start to reach
vfs.ufs.dirhash_maxmem.
I have a tendency to use vfs.ufs.dirhash_maxmem=16777216, which is
16384*1024 (16MBytes).
I'm not fully confident this is what's causing your problem, but it's
definitely a recommendation by Johan.
--
| Jeremy Chadwick jdc at parodius.com |
| Parodius Networking http://www.parodius.com/ |
| UNIX Systems Administrator Mountain View, CA, USA |
| Making life hard for others since 1977. PGP: 4BD6C0CB |
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