ZFS - poor performance with "large" directories

[Albert Cervin]

"8G is not that much really. In the thread they suggested increasing the
meta limit so that the giant directory can fit into cache."

It is not really short on ram judging from the usage though and sure
8Gb is not that much but on the other hand, neither is 8000 files in
one directory in my opinion...

Will try a bit with the meta limit.

Thanks,
Albert

On Tue, Nov 24, 2015 at 4:42 PM, Mike Tancsa <mike at sentex.net> wrote:
> On 11/24/2015 10:26 AM, Albert Cervin wrote:
>>  vfs.zfs.txg.timeout is already verified to be 5 (the default). I have
>> also turned off atime and vfs.zfs.arc_meta_limit is 1287906304.
>>
>> "Do you have any memory pressures on your server ?  Have a look at this
>> thread"
>>
>> The server has 4 cores and 8Gb of memory and there is no memory
>> pressure on the server. Thanks, will look at the thread!
>>
>> The setup is _really_ simple with just a single pool and no datasets.
>>
>> Any more ideas?
>
> 8G is not that much really. In the thread they suggested increasing the
> meta limit so that the giant directory can fit into cache.
>
>         ---Mike
>
>
>
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