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From Steven Hunter <steveopl...@gmail.com>
Subject Re: IO performance
Date Wed, 28 Jan 2015 04:05:39 GMT
StevenHunter
On Jan 23, 2015 1:01 AM, "Steven Hunter" <steveoplier@gmail.com> wrote:
>
> A second or more HDS up to 4 would work great
>
> StevenHunter
>
> 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
>>
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>>
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