On 11 January 2016 at 23:55, Pádraig Brady <[email protected]> wrote: > On 11/01/16 21:59, Francois wrote:
>> - and maybe that we can do a better use of posix_advise. > > What do you mean for that do do exactly? nocache limits itself to advising a single buffer, while what we really want is to tell the kernel it's really the full file we don't need in cache. Doing a ADV_DONTNEED starting from offset 0 each time drastically reduce the number of pages put into cache, and completely removes swapping, and this *without sync*. Cheers, and thanks for the example! Thanks for your time Francois
