Re: [PATCH 0/5] ipc/msg: Sender/receiver optimizations

2016-08-09 Thread Andrew Morton
On Tue, 9 Aug 2016 14:44:26 +0200 Peter Zijlstra wrote: > On Thu, Aug 04, 2016 at 06:44:09PM +0200, Peter Zijlstra wrote: > > On Thu, Jul 28, 2016 at 04:33:34PM -0700, Davidlohr Bueso wrote: > > > Hi, > > > > > > I'm resending Sebastian's sysv msg queue use of wake_qs but updated > > > to the la

Re: [PATCH 0/5] ipc/msg: Sender/receiver optimizations

2016-08-09 Thread Peter Zijlstra
On Thu, Aug 04, 2016 at 06:44:09PM +0200, Peter Zijlstra wrote: > On Thu, Jul 28, 2016 at 04:33:34PM -0700, Davidlohr Bueso wrote: > > Hi, > > > > I'm resending Sebastian's sysv msg queue use of wake_qs but updated > > to the last observations I need wrt the need of explicit barriers > > after rem

Re: [PATCH 0/5] ipc/msg: Sender/receiver optimizations

2016-08-04 Thread Peter Zijlstra
On Thu, Jul 28, 2016 at 04:33:34PM -0700, Davidlohr Bueso wrote: > Hi, > > I'm resending Sebastian's sysv msg queue use of wake_qs but updated > to the last observations I need wrt the need of explicit barriers > after removing the whole receiver busy-looping. After some irc exchange > it seems we