[#86755] [Ruby trunk Feature#14723] [WIP] sleepy GC — normalperson@...
Issue #14723 has been reported by normalperson (Eric Wong).
6 messages
2018/04/29
[ruby-core:86651] [Ruby trunk Feature#14705] [PATCH] eval.c (ruby_setup): disable THP on Linux
From:
normalperson@...
Date:
2018-04-22 22:21:36 UTC
List:
ruby-core #86651
Issue #14705 has been reported by normalperson (Eric Wong). ---------------------------------------- Feature #14705: [PATCH] eval.c (ruby_setup): disable THP on Linux https://bugs.ruby-lang.org/issues/14705 * Author: normalperson (Eric Wong) * Status: Open * Priority: Normal * Assignee: * Target version: ---------------------------------------- Transparent Huge Pages (THP) decrease the effectiveness of CoW-friendly GC because it decreases page granularity. That is, a forked process dirtying one bit of CoW-shared memory can trigger a copy of a huge page (2MB on x86-64) instead of a smaller, standard page (4K). I think this is fairly obvious choice to make since we already decide to support bitmap marking GC for CoW-friendliness. Will commit in a few days if no response. ---Files-------------------------------- 0001-eval.c-ruby_setup-disable-THP-on-Linux.patch (1.21 KB) -- https://bugs.ruby-lang.org/ Unsubscribe: <mailto:[email protected]?subject=unsubscribe> <http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>
