Re: [RFA] update ggc_min_heapsize_heuristic()

2017-04-10 Thread Markus Trippelsdorf
On 2017.04.10 at 13:14 +0100, Richard Earnshaw (lists) wrote: > On 10/04/17 12:06, Segher Boessenkool wrote: > > On Mon, Apr 10, 2017 at 12:52:15PM +0200, Markus Trippelsdorf wrote: > >>> --param ggc-min-heapsize=131072 > >>> 11264.89user 311.88system 24:18.69elapsed 793%CPU (0avgtext+0avgdata >

Re: [RFA] update ggc_min_heapsize_heuristic()

2017-04-10 Thread Richard Earnshaw (lists)
On 10/04/17 12:06, Segher Boessenkool wrote: > On Mon, Apr 10, 2017 at 12:52:15PM +0200, Markus Trippelsdorf wrote: >>> --param ggc-min-heapsize=131072 >>> 11264.89user 311.88system 24:18.69elapsed 793%CPU (0avgtext+0avgdata >>> 1265352maxresident)k >> >> --param ggc-min-heapsize=262144 >> 10778

Re: [RFA] update ggc_min_heapsize_heuristic()

2017-04-10 Thread Segher Boessenkool
On Mon, Apr 10, 2017 at 12:52:15PM +0200, Markus Trippelsdorf wrote: > > --param ggc-min-heapsize=131072 > > 11264.89user 311.88system 24:18.69elapsed 793%CPU (0avgtext+0avgdata > > 1265352maxresident)k > > --param ggc-min-heapsize=262144 > 10778.52user 336.34system 23:15.71elapsed 796%CPU (0av

Re: [RFA] update ggc_min_heapsize_heuristic()

2017-04-10 Thread Markus Trippelsdorf
On 2017.04.10 at 12:15 +0200, Markus Trippelsdorf wrote: > On 2017.04.10 at 10:56 +0100, Richard Earnshaw (lists) wrote: > > > > What are the numbers with 256M? > > Here are the numbers from a 4core/8thread 16GB RAM Skylake machine. > They look less stellar than the ppc64le ones (variability is s

Re: [RFA] update ggc_min_heapsize_heuristic()

2017-04-10 Thread Markus Trippelsdorf
On 2017.04.10 at 10:56 +0100, Richard Earnshaw (lists) wrote: > On 09/04/17 21:06, Markus Trippelsdorf wrote: > > On 2017.04.09 at 21:10 +0200, Markus Trippelsdorf wrote: > >> On 2017.04.09 at 21:25 +0300, Alexander Monakov wrote: > >>> On Sun, 9 Apr 2017, Markus Trippelsdorf wrote: > >>> > Th

Re: [RFA] update ggc_min_heapsize_heuristic()

2017-04-10 Thread Richard Earnshaw (lists)
On 09/04/17 21:06, Markus Trippelsdorf wrote: > On 2017.04.09 at 21:10 +0200, Markus Trippelsdorf wrote: >> On 2017.04.09 at 21:25 +0300, Alexander Monakov wrote: >>> On Sun, 9 Apr 2017, Markus Trippelsdorf wrote: >>> The minimum size heuristic for the garbage collector's heap, before it

Re: [RFA] update ggc_min_heapsize_heuristic()

2017-04-10 Thread Trevor Saunders
On Sun, Apr 09, 2017 at 10:06:21PM +0200, Markus Trippelsdorf wrote: > On 2017.04.09 at 21:10 +0200, Markus Trippelsdorf wrote: > > On 2017.04.09 at 21:25 +0300, Alexander Monakov wrote: > > > On Sun, 9 Apr 2017, Markus Trippelsdorf wrote: > > > > > > > The minimum size heuristic for the garbage c

Re: [RFA] update ggc_min_heapsize_heuristic()

2017-04-09 Thread Markus Trippelsdorf
On 2017.04.09 at 21:10 +0200, Markus Trippelsdorf wrote: > On 2017.04.09 at 21:25 +0300, Alexander Monakov wrote: > > On Sun, 9 Apr 2017, Markus Trippelsdorf wrote: > > > > > The minimum size heuristic for the garbage collector's heap, before it > > > starts collecting, was last updated over ten y

Re: [RFA] update ggc_min_heapsize_heuristic()

2017-04-09 Thread Markus Trippelsdorf
On 2017.04.09 at 20:23 +0200, Richard Biener wrote: > On Sun, Apr 9, 2017 at 4:41 PM, Markus Trippelsdorf > wrote: > > The minimum size heuristic for the garbage collector's heap, before it > > starts collecting, was last updated over ten years ago. > > It currently has a hard upper limit of 128MB

Re: [RFA] update ggc_min_heapsize_heuristic()

2017-04-09 Thread Markus Trippelsdorf
On 2017.04.09 at 21:25 +0300, Alexander Monakov wrote: > On Sun, 9 Apr 2017, Markus Trippelsdorf wrote: > > > The minimum size heuristic for the garbage collector's heap, before it > > starts collecting, was last updated over ten years ago. > > It currently has a hard upper limit of 128MB. > > Thi

Re: [RFA] update ggc_min_heapsize_heuristic()

2017-04-09 Thread Alexander Monakov
On Sun, 9 Apr 2017, Markus Trippelsdorf wrote: > The minimum size heuristic for the garbage collector's heap, before it > starts collecting, was last updated over ten years ago. > It currently has a hard upper limit of 128MB. > This is too low for current machines where 8GB of RAM is normal. > So,

Re: [RFA] update ggc_min_heapsize_heuristic()

2017-04-09 Thread Richard Biener
On Sun, Apr 9, 2017 at 4:41 PM, Markus Trippelsdorf wrote: > The minimum size heuristic for the garbage collector's heap, before it > starts collecting, was last updated over ten years ago. > It currently has a hard upper limit of 128MB. > This is too low for current machines where 8GB of RAM is n