[CentOS] Filesystem writes unexpectedly slow (CentOS 6.4)

Fri Oct 17 09:45:58 UTC 2014
Joakim Ziegler <joakim at terminalmx.com>

On 16/10/14, 15:35, m.roth at 5-cent.us wrote:
>     I missed the beginning of this thread - how is the filesystem mounted?
> For ext4, we finally found that it worked well... *if* it was mounted
> nobarrier. That made the detar of a compressed tar file go from
> literally 7 minutes to about 30-46 seconds.

That is interesting. I have barriers enabled, I will try disabling them (I have 
battery backup on the RAID controller, so it should be ok). Then again, I have 
barriers enabled on the other, very similar box too, and I hit 2GB/sec there, so 
I don't think that's the main factor. Still, will test. Thanks.

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Joakim Ziegler  -  Supervisor de postproducción  -  Terminal
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