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Re: I/O - Increase RAM

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On 04/13/2016 01:59 PM, drum.lucas@xxxxxxxxx wrote:


On 14 April 2016 at 08:52, Joshua D. Drake <jd@xxxxxxxxxxxxxxxxx
<mailto:jd@xxxxxxxxxxxxxxxxx>> wrote:

    On 04/13/2016 01:43 PM, drum.lucas@xxxxxxxxx
    <mailto:drum.lucas@xxxxxxxxx> wrote:

        Question:

        I know that might not be the best option, but by increasing the
        RAM and
        the CACHE would help, right?


    might, not necessarily would.


Would be nice if you could explain why not / why yes

For reads the more things in cache the more performance.

For writes the topic is more complicated but the long and short is this:

The moment you flush your cache (evict a bunch of buffers, linux dumping out its cache etc..) you are going to get hammered.

JD



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