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Re: [RFA] update ggc_min_heapsize_heuristic()
- From: Markus Trippelsdorf <markus at trippelsdorf dot de>
- To: "Richard Earnshaw (lists)" <Richard dot Earnshaw at arm dot com>
- Cc: Alexander Monakov <amonakov at ispras dot ru>, gcc at gcc dot gnu dot org
- Date: Mon, 10 Apr 2017 12:52:15 +0200
- Subject: Re: [RFA] update ggc_min_heapsize_heuristic()
- Authentication-results: sourceware.org; auth=none
- References: <20170409144125.GA10606@x4> <alpine.LNX.2.20.13.1704092108210.4498@monopod.intra.ispras.ru> <20170409191019.GA294@x4> <20170409200621.GC294@x4> <9f82f10b-f72c-08a9-9bca-fd11e9a259fc@arm.com> <20170410101537.GA11802@x4>
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 smaller):
>
> --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 (0avgtext+0avgdata 1277468maxresident)k
> --param ggc-min-heapsize=393216
> 10655.42user 347.92system 23:01.17elapsed 796%CPU (0avgtext+0avgdata 1280476maxresident)k
>
> --param ggc-min-heapsize=524288
> 10565.33user 352.90system 22:51.33elapsed 796%CPU (0avgtext+0avgdata 1506348maxresident)k
--
Markus