+1 On Wed, Feb 17, 2016 at 4:24 PM, Neil Conway <neil.con...@gmail.com> wrote: > Hi folks, > > At present, Mesos defaults to compiling with "-O0"; to enable compiler > optimizations, the user needs to specify "--enable-optimize". > > I'd like to propose we change the default, for a few reasons: > > (1) The autoconf default for CFLAGS/CXXFLAGS is "-O2 -g". Anecdotally, > I think most software packages compile with a reasonable level of > optimizations enabled by default. > > (2) I think we should make the default configure flags appropriate for > end-users (rather than Mesos developers): developers will be familiar > enough with Mesos to tune the configure flags according to their own > preferences. > > (3) The performance consequences of not enabling compiler > optimizations can be pretty severe: 5x in a benchmark I just ran, and > we've seen between 2x and 30x (!) performance differences for some > real-world workloads. > > Neil
-- ~Kevin
