help needed - tuning a filesystem for rm and cp ? (MORE)

[Speedtoys]

Will upping these values make a difference on nfs volumes as well?


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On Aug 14, 2007, at 1:33 PM, Gore Jarold <gore_jarold at yahoo.com> wrote:

> On Fri, 13 Jul 2007, Ivan Voras wrote:
>
>> Gore Jarold wrote:
>>
>>> vfs.ufs.dirhash_maxmem: 2097152
>>> vfs.ufs.dirhash_mem: 2065716
>>>
>>>
>>> Interesting at all ?
>>
>> Yes, you've used up all dirhash_mem. Since you have
> enough memory, try
>> increasing dirhash_maxmem by a factor of 4 or more
> and testing again. It
>> might help you with large directories (lots of
> files).
>
>
> Ok, you are correct - I am indeed maxing out
> vfs.ufs.dirhash_mem
>
> I have just upped it by 2x and will continue to
> monitor it.
>
> Here is a question for any and all out there reading
> ... what would you expect would happen to a system
> that was constantly maxing out this value, sometimes
> on a sustained basis, while the activity that caused
> it went on uninterrupted ?
>
> I am seeing the system halt ... is it reasonable to
> think that maxing that value out on a regular,
> sustained basis would cause a system to halt ?
>
> (6.2-release running on a 4 GB memory p4 xeon ... does
> nothing but fileserver duties)
>
>
>
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