From: Eric Wong <normalperson@yhbt.net>
To: ruby-core@ruby-lang.org
Subject: [ruby-core:87230] Re: [Ruby trunk Feature#14718] Use jemalloc by default?
Date: Wed, 23 May 2018 02:57:39 +0000 [thread overview]
Message-ID: <20180523025739.GA28369@whir> (raw)
In-Reply-To: <redmine.journal-72177.20180519025532.b6266806ccfe4299@ruby-lang.org>
dennisb55@hotmail.com wrote:
> normalperson (Eric Wong) wrote:
> > Reading some glibc mailing list (libc-alpha) posts last year,
> > I remember excessive RSS usage is one of the areas they're
> > tackling due to user complaints.
> Interesting, do you have links?
Wasn't even last year.
https://marc.info/?i=a9367dd0-f130-a23c-df7b-14d50ed10cfa@redhat.com
(or https://public-inbox.org/libc-alpha/a9367dd0-f130-a23c-df7b-14d50ed10cfa@redhat.com/ )
A high-level concrete problem today with glibc's malloc, and the
only problem be reported by our users is that it consumes too
much RSS. Solving that problem in abstract is what we should be
looking at.
- Carlos O'Donell
> > I should also note the newish glibc 2.26 has the thread-caching
> > malloc as a build-time option, so it should reduce contention on
> > arenas and allow using fewer arenas.
> I wonder what the fragmentation characteristics will be?
*shrug* haven't gotten around to testing
> The arena count defaults haven't changed have they? (8 times core count for x64).
Doesn't seem to have changed:
git clone git://sourceware.org/git/glibc.git &&
git -C glibc grep NARENAS_FROM_NCORES
next prev parent reply other threads:[~2018-05-23 2:57 UTC|newest]
Thread overview: 102+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <redmine.issue-14718.20180427161410@ruby-lang.org>
2018-04-27 16:14 ` [ruby-core:86725] [Ruby trunk Feature#14718] Use jemalloc by default? mperham
2018-04-27 18:12 ` [ruby-core:86731] " Eric Wong
2018-04-27 18:13 ` [ruby-core:86732] " Koichi Sasada
2018-04-27 16:30 ` [ruby-core:86726] " merch-redmine
2018-04-27 16:38 ` [ruby-core:86728] " mperham
2018-04-27 18:50 ` [ruby-core:86734] " shevegen
2018-04-27 19:28 ` [ruby-core:86735] " rr.rosas
2018-04-27 19:59 ` [ruby-core:86736] " rr.rosas
2018-04-27 21:59 ` [ruby-core:86738] " mperham
2018-04-28 4:36 ` [ruby-core:86742] " the.codefolio.guy
2018-04-28 19:52 ` [ruby-core:86752] " nobu
2018-04-28 20:33 ` [ruby-core:86753] " mperham
2018-04-29 8:21 ` [ruby-core:86760] " shyouhei
2018-04-30 15:57 ` [ruby-core:86777] " mperham
2018-05-01 1:46 ` [ruby-core:86786] " shyouhei
2018-05-02 17:31 ` [ruby-core:86843] " mperham
2018-05-02 21:00 ` [ruby-core:86844] " Eric Wong
2018-05-15 8:33 ` [ruby-core:87036] " Eric Wong
2018-05-08 2:27 ` [ruby-core:86936] " davidtgoldblatt
2018-05-08 3:34 ` [ruby-core:86938] " mame
2018-05-10 5:11 ` [ruby-core:86962] " dennisb55
2018-05-10 5:37 ` [ruby-core:86964] " dennisb55
2018-05-10 5:55 ` [ruby-core:86965] " merch-redmine
2018-05-10 6:26 ` [ruby-core:86966] " dennisb55
2018-05-10 17:20 ` [ruby-core:86971] " merch-redmine
2018-05-11 1:31 ` [ruby-core:86975] " shyouhei
2018-05-11 2:19 ` [ruby-core:86978] " Eric Wong
2018-05-11 3:01 ` [ruby-core:86979] " mame
2018-05-11 3:28 ` [ruby-core:86982] " dennisb55
2018-05-11 3:38 ` [ruby-core:86984] " dennisb55
2018-05-11 4:00 ` [ruby-core:86985] " dennisb55
2018-05-11 4:07 ` [ruby-core:86986] " dennisb55
2018-05-11 16:23 ` [ruby-core:86999] " mperham
2018-05-12 0:58 ` [ruby-core:87003] " dennisb55
2018-05-14 0:09 ` [ruby-core:87012] " shyouhei
2018-05-14 2:14 ` [ruby-core:87014] " dennisb55
2018-05-14 3:16 ` [ruby-core:87015] " shyouhei
2018-05-14 6:42 ` [ruby-core:87016] " dennisb55
2018-05-14 7:33 ` [ruby-core:87017] " sam.saffron
2018-05-14 7:53 ` [ruby-core:87020] " shyouhei
2018-05-14 8:30 ` [ruby-core:87023] " dennisb55
2018-05-14 15:58 ` [ruby-core:87027] " mperham
2018-05-14 16:31 ` [ruby-core:87028] " wyhaines
2018-05-15 3:49 ` [ruby-core:87031] " mame
2018-05-15 7:17 ` [ruby-core:87033] " sam.saffron
2018-05-15 23:16 ` [ruby-core:87048] " mperham
2018-05-16 5:11 ` [ruby-core:87060] " dennisb55
2018-05-16 5:14 ` [ruby-core:87061] " dennisb55
2018-05-16 5:29 ` [ruby-core:87064] " mperham
2018-05-16 5:54 ` [ruby-core:87065] " dennisb55
2018-05-16 9:09 ` [ruby-core:87071] " Eric Wong
2018-05-16 18:45 ` [ruby-core:87086] " mperham
2018-05-16 19:22 ` [ruby-core:87087] " merch-redmine
2018-05-16 20:12 ` [ruby-core:87088] " mperham
2018-05-16 23:54 ` [ruby-core:87090] " mame
2018-05-17 17:31 ` [ruby-core:87145] " mperham
2018-05-18 3:10 ` [ruby-core:87154] " dennisb55
2018-05-18 3:13 ` [ruby-core:87155] " dennisb55
2018-05-18 3:19 ` [ruby-core:87156] " dennisb55
2018-05-18 3:49 ` [ruby-core:87159] " mperham
2018-05-18 4:10 ` [ruby-core:87160] " dennisb55
2018-05-18 7:59 ` [ruby-core:87164] " Eric Wong
2018-05-19 2:55 ` [ruby-core:87186] " dennisb55
2018-05-22 1:12 ` [ruby-core:87216] " Vladimir Makarov
2018-05-23 2:57 ` Eric Wong [this message]
2018-05-22 16:25 ` [ruby-core:87224] " mperham
2018-05-22 20:22 ` [ruby-core:87225] " mperham
2018-05-23 0:38 ` [ruby-core:87229] " dennisb55
2018-05-23 4:22 ` [ruby-core:87231] " mperham
2018-05-29 20:34 ` [ruby-core:87299] " edchick
2018-06-23 18:39 ` [ruby-core:87616] " v.ondruch
2018-06-25 0:36 ` [ruby-core:87626] " nobu
2018-07-26 18:51 ` [ruby-core:88127] " carlos
2018-07-29 1:18 ` [ruby-core:88156] " andregsakata
2018-07-29 4:27 ` [ruby-core:88161] " dennisb55
2018-07-29 4:31 ` [ruby-core:88162] " dennisb55
2018-07-29 7:45 ` [ruby-core:88163] " fweimer
2018-07-30 10:16 ` [ruby-core:88192] " Eric Wong
2018-08-01 1:00 ` [ruby-core:88244] " Eric Wong
2018-07-29 8:38 ` [ruby-core:88164] " fweimer
2018-07-29 15:16 ` [ruby-core:88165] " andregsakata
2018-07-29 16:34 ` [ruby-core:88166] " andregsakata
2018-07-29 17:39 ` [ruby-core:88168] " andregsakata
2018-07-30 12:16 ` [ruby-core:88195] " fweimer
2018-07-30 13:16 ` [ruby-core:88196] " andregsakata
2018-07-30 13:20 ` [ruby-core:88197] " fweimer
2018-07-30 16:16 ` [ruby-core:88208] " andregsakata
2018-07-30 20:27 ` [ruby-core:88216] " davidtgoldblatt
2018-07-30 22:46 ` [ruby-core:88220] " andregsakata
2018-07-31 0:31 ` [ruby-core:88223] " dennisb55
2018-08-01 0:14 ` [ruby-core:88238] " sam.saffron
2018-08-01 9:55 ` [ruby-core:88256] " Eric Wong
2018-08-01 0:55 ` [ruby-core:88243] " mperham
2018-08-01 2:12 ` [ruby-core:88245] " sam.saffron
2018-08-01 3:41 ` [ruby-core:88247] " dennisb55
2018-08-02 0:04 ` [ruby-core:88266] " sam.saffron
2019-02-07 3:53 ` [ruby-core:91445] " mame
2019-02-09 4:42 ` [ruby-core:91499] " dennisb55
2019-03-14 16:52 ` [ruby-core:91832] " msiegel
2019-03-14 20:02 ` [ruby-core:91836] " fredngo
2019-03-14 20:35 ` [ruby-core:91838] " sam.saffron
2019-03-15 6:50 ` [ruby-core:91843] " dennisb55
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