[#87847] undefined symbol: mjit_init_p — Leam Hall <leamhall@...>

I pulled Ruby trunk on 3 Jul and am now getting errors similar to the

10 messages 2018/07/07

[#88088] [Ruby trunk Misc#14937] [PATCH] thread_pthread: lazy-spawn timer-thread only on contention — normalperson@...

Issue #14937 has been reported by normalperson (Eric Wong).

9 messages 2018/07/24

[ruby-core:88162] [Ruby trunk Feature#14718] Use jemalloc by default?

From: dennisb55@...
Date: 2018-07-29 04:31:10 UTC
List: ruby-core #88162
Issue #14718 has been updated by bluz71 (Dennis B).


[email protected] (Carlos O'Donell) wrote:

> I will try to keep the ruby community updated with regard to our analysis of fluentd and the ruby vm with glibc's malloc.

Please do keep us informed Carlos.

Thank you, I genuinely hope the initiative produces the desired results we all seek.

----------------------------------------
Feature #14718: Use jemalloc by default?
https://bugs.ruby-lang.org/issues/14718#change-73187

* Author: mperham (Mike Perham)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
----------------------------------------
I know Sam opened #9113 4 years ago to suggest this but I'm revisiting the topic to see if there's any movement here for Ruby 2.6 or 2.7.  I supply a major piece of Ruby infrastructure (Sidekiq) and I keep hearing over and over how Ruby is terrible with memory, a huge memory hog with their Rails apps.  My users switch to jemalloc and a miracle occurs: their memory usage drops massively.  Some data points:

https://twitter.com/brandonhilkert/status/987400365627801601
https://twitter.com/d_jones/status/989866391787335680
https://github.com/mperham/sidekiq/issues/3824#issuecomment-383072469

Redis moved to jemalloc many years ago and it solved all of their memory issues too.  Their conclusion: the glibc allocator "sucks really really hard". http://oldblog.antirez.com/post/everything-about-redis-24.html

This is a real pain point for the entire Rails community and would improve Ruby's reputation immensely if we can solve this problem.



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