AIO requires pre allocating the files.. which is not really a good option on paging, as the files will grow from zero and not be reused. (which is different on journal as we reuse the files). (At least I didn't find a good way to use libaio on paging).
MappedFile is a new thing and we still didn't have time to get that far. I am treating Mappedfile as experimental still.. we have the good testsuite, but I didn't run many performance tests on it yet... I'm not sure if Francesco Nigro or anyone else have done it so. It would make sense to implement Journal using Mappedfile.... Maybe we could find a better algorithm to use libaio on paging On Thu, Mar 23, 2017 at 9:04 PM, Michael André Pearce <[email protected]> wrote: > Hi All, > > Before I go any further and raise a jira and look to implement. > > Is there any reason paging only uses NIO and unlike the journal doesn't > support toggling to use AIO or the new Mapped variant? > > Cheers > Mike > > Sent from my iPhone -- Clebert Suconic
