Hello,
On 19 April 2018 at 14:31, Slawa Olhovchenkov <[email protected]> wrote: >> This is very useful, thank you. I'm seeing overall that when you're on >> 1.7.10+kqueue and 1.8.5+poll the overall %user is the same. However >> it's the system which makes a huge difference there (to be expected >> with poll under load). However things are highly different when you >> run with kqueue, this seems to indicate that we may be missing some >> events in the kqueue loop or that we need multiple calls for some of >> them to be processed, causing some suboptimal behaviour. There is >> some important locking in 1.8 to deal with the fd cache which has been >> revisited differently in 1.9. And the differences are important enough >> not to be realisticly backportable. So it may be possible that what you >> observe is a limit of the current 1.8 code, though we'll take a closer >> look in case we find something. However since we haven't yet heard of >> anything similar affecting epoll, it possibly is an issue affecting >> only the kqueue code, so there's hope that we can spot something there. > > I am try 1.8.7 anf got same issuse. Try 1.8.8, it contains the kqueue fix. Lukas
