[#58149] [ruby-trunk - Feature #9076][Open] New one-argument block syntax: &. — "asterite (Ary Borenszweig)" <ary@...>
23 messages
2013/11/04
[#58259] [ruby-trunk - Feature #9099][Open] Train emoji lambda operator — "charliesome (Charlie Somerville)" <charliesome@...>
9 messages
2013/11/10
[#58312] [ruby-trunk - Feature #9107][Open] Introduce YES and NO as aliases of true and false — "gsamokovarov (Genadi Samokovarov)" <gsamokovarov@...>
5 messages
2013/11/13
[#58350] [ruby-trunk - Feature #9113][Open] Ship Ruby for Linux with jemalloc out-of-the-box — "sam.saffron (Sam Saffron)" <sam.saffron@...>
59 messages
2013/11/15
[#60851] Re: [ruby-trunk - Feature #9113][Open] Ship Ruby for Linux with jemalloc out-of-the-box
— Eric Wong <normalperson@...>
2014/02/19
Btw, I also hope to experiment with a slab allocator since many internal
[#62721] [ruby-trunk - Feature #9113] Ship Ruby for Linux with jemalloc out-of-the-box
— nobu@...
2014/05/24
Issue #9113 has been updated by Nobuyoshi Nakada.
[#62735] [ruby-trunk - Feature #9113] Ship Ruby for Linux with jemalloc out-of-the-box
— normalperson@...
2014/05/25
Issue #9113 has been updated by Eric Wong.
[#58391] [ruby-trunk - Bug #9119][Assigned] TestTime#test_marshal_broken_offset broken under MinGW — "luislavena (Luis Lavena)" <luislavena@...>
10 messages
2013/11/17
[#58396] [ruby-trunk - Bug #9121][Open] [PATCH] Remove rbtree implementation of SortedSet due to performance regression — "xshay (Xavier Shay)" <contact@...>
15 messages
2013/11/18
[#58404] [ruby-trunk - Feature #9123][Open] Make Numeric#nonzero? behavior consistent with Numeric#zero? — "sferik (Erik Michaels-Ober)" <sferik@...>
40 messages
2013/11/18
[#58411] [ruby-trunk - Bug #9124][Open] TestSocket errors in test-all on Arch 64-bit — "jonforums (Jon Forums)" <redmine@...>
14 messages
2013/11/18
[#58515] [ruby-trunk - Bug #9124] TestSocket errors in test-all on Arch 64-bit
— "jonforums (Jon Forums)" <redmine@...>
2013/11/23
[#58841] [ruby-trunk - Bug #9124] TestSocket errors in test-all on Arch 64-bit
— "jonforums (Jon Forums)" <redmine@...>
2013/12/04
[#58842] Re: [ruby-trunk - Bug #9124] TestSocket errors in test-all on Arch 64-bit
— Eric Wong <normalperson@...>
2013/12/04
"jonforums (Jon Forums)" <[email protected]> wrote:
[#58452] [ruby-trunk - Bug #9133][Open] logger rotates log files more than expected — "no6v (Nobuhiro IMAI)" <nov@...>
8 messages
2013/11/21
[#58473] Object identity for string hash keys — Andrew Vit <andrew@...>
I'm not sure if this is a bug. I'm creating a hash like this:
5 messages
2013/11/21
[#58490] Re: [ruby-cvs:50910] drbrain:r43767 (trunk): * lib/rubygems: Update to RubyGems master 50a8210. Important changes — Tanaka Akira <akr@...>
2013/11/22 <[email protected]>:
4 messages
2013/11/22
[#58492] Re: [ruby-cvs:50910] drbrain:r43767 (trunk): * lib/rubygems: Update to RubyGems master 50a8210. Important changes
— Eric Wong <normalperson@...>
2013/11/22
Tanaka Akira <[email protected]> wrote:
[#58496] [ruby-trunk - Feature #9140][Open] Allow each_with_index to get start index — "rosenfeld (Rodrigo Rosenfeld Rosas)" <rr.rosas@...>
8 messages
2013/11/22
[#58545] [ruby-trunk - Feature #9145][Open] Queue#pop(true) return nil if empty instead of raising ThreadError — "jsc (Justin Collins)" <redmine@...>
9 messages
2013/11/24
[#58599] [ruby-trunk - Bug #9159][Open] [patch] use rb_fstring for internal strings — "tmm1 (Aman Gupta)" <[email protected]>
5 messages
2013/11/26
[#58653] [ruby-trunk - Bug #9170][Open] Math.sqrt returns different types when mathn is included; breaks various gems - this bug can be reproduced in Ruby 1.8 as well — "kranzky (Jason Hutchens)" <JasonHutchens@...>
7 messages
2013/11/28
[#58719] [ruby-trunk - Feature #5446] at_fork callback API — "tmm1 (Aman Gupta)" <[email protected]>
6 messages
2013/11/30
[ruby-core:58476] [ruby-trunk - Feature #9113] Ship Ruby for Linux with jemalloc out-of-the-box
From:
"kosaki (Motohiro KOSAKI)" <kosaki.motohiro@...>
Date:
2013-11-22 02:40:11 UTC
List:
ruby-core #58476
Issue #9113 has been updated by kosaki (Motohiro KOSAKI). @duerst It is not correct. I and glibc folks are working on several improvement about malloc. Moreover, each allocator has different pros/cons. jemalloc can retrieve some workload better and glibc allocator can retrieve some other workload. There is no single perfect allocator. That's our difficulty. @sam.saffron The Facebook's page you pointed out is out of date. It compare glibc 2.5 vs jemalloc 2.1.0. But latest are glibc 2.18 and jemalloc 3.4.1. And, glibc malloc and jemalloc shares a lot of basic design. So, this documentation is completely useless. If you have several workload which glibc doesn't work well, please make and share benchmark instead of rumor. Then, we can improve several bottlenecks. ---------------------------------------- Feature #9113: Ship Ruby for Linux with jemalloc out-of-the-box https://bugs.ruby-lang.org/issues/9113#change-43069 Author: sam.saffron (Sam Saffron) Status: Rejected Priority: Normal Assignee: Category: build Target version: libc's malloc is a problem, it fragments badly meaning forks share less memory and is slow compared to tcmalloc or jemalloc. both jemalloc and tcmalloc are heavily battle tested and stable. 2 years ago redis picked up the jemalloc dependency see: http://oldblog.antirez.com/post/everything-about-redis-24.html To quote antirez: `` But an allocator is a serious thing. Since we introduced the specially encoded data types Redis started suffering from fragmentation. We tried different things to fix the problem, but basically the Linux default allocator in glibc sucks really, really hard. `` --- I recently benched Discourse with tcmalloc / jemalloc and default and noticed 2 very important thing: median request time reduce by up to 10% (under both) PSS (proportional share size) is reduced by 10% under jemalloc and 8% under tcmalloc. We can always use LD_PRELOAD to yank these in, but my concern is that standard distributions are using a far from optimal memory allocator. It would be awesome if the build, out-of-the-box, just checked if it was on Linux (eg: https://github.com/antirez/redis/blob/unstable/src/Makefile#L30-L34 ) and then used jemalloc instead. -- http://bugs.ruby-lang.org/