Re: Configuration Optimisation

Leif Biberg Kristensen wrote:
> On Thursday 14. January 2010 16.55.07 Howard Cole wrote:
>
>> Leif Biberg Kristensen wrote:
>>
>>> On Thursday 14. January 2010 16.02.12 Andy Colson wrote:
>>>
>>> See my reply above. My 250 tps seems in line with the 700 tps on a modern
>>> system that the OP gets on his Windows setup. To me it seems like
>>>
> something is
>
>>> broken on his Ubuntu setup.
>>>
>>> regards,
>>>
>>>
>> I am hoping your assumptions are correct. I have reinstalled ubuntu from
>> scratch as I had been tinkering with the power management on the server.
>> Once the RAID has rebuilt, I shall try again.
>>
>
> What kind of file system are you running?
>
> regards,
>
The file system is ext4. If I turn fsync off I get a TPS of 1120 so I
think there is an issue with the speed of the array.

The dd test give a speed of 125MB/s which seems reasonable to me.

I can leave fsync off but I suspect that I am just ignoring the problem.

Howard.