A second or more HDS up to 4 would work great


On Jan 14, 2015 11:31 AM, "Daniel Biazus" <daniel.biazus@azion.com> wrote:
Hey Guys,

    As you can see at the following iostat output, We have a lot of writes into the cache, :-)  and the IO wait is a bit higher than expected. 

               Device:         rrqm/s   wrqm/s     r/s     w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
(storage) sda               0.00     0.00   17.00   26.00  6094.00 13144.00   447.40     0.94   19.77   6.05  26.00
(interim)  sdb               0.00     0.00   85.00   13.00 12523.00  8706.00   216.62     0.18    1.86   0.84   8.20

I was wondering if would be possible to enhance the write IO performance by increasing the IO buffers.

I thought, I would increase the proxy.config.io.max_buffer_size, from 32768 to a much higher value. 

Any thoughts about it ?

Thank you!


Daniel Biazus
infrastructure Engineering
Azion Technologies
Porto Alegre, Brasil +55 51 3012 3005 | +55 51 82279032
Miami, USA +1 305 704 8816

Quaisquer informações contidas neste e-mail e anexos podem ser confidenciais e privilegiadas, protegidas por sigilo legal. Qualquer forma de utilização deste documento depende de autorização do emissor, sujeito as penalidades cabíveis.

Any information in this e-mail and attachments may be confidential and privileged, protected by legal confidentiality. The use of this document require authorization by the issuer, subject to penalties.