[#105882] [Ruby master Bug#18280] Segmentation Fault in rb_utf8_str_new_cstr(NULL) — "ukolovda (Dmitry Ukolov)" <noreply@...>

Issue #18280 has been reported by ukolovda (Dmitry Ukolov).

13 messages 2021/11/01

[#105897] [Ruby master Bug#18282] Rails CI raises Segmentation fault with ruby 3.1.0dev supporting `Class#descendants` — "yahonda (Yasuo Honda)" <noreply@...>

Issue #18282 has been reported by yahonda (Yasuo Honda).

12 messages 2021/11/02

[#105909] [Ruby master Misc#18285] NoMethodError#message uses a lot of CPU/is really expensive to call — "ivoanjo (Ivo Anjo)" <noreply@...>

Issue #18285 has been reported by ivoanjo (Ivo Anjo).

37 messages 2021/11/02

[#105920] [Ruby master Bug#18286] Universal arm64/x86_84 binary built on an x86_64 machine segfaults/is killed on arm64 — "ccaviness (Clay Caviness)" <noreply@...>

Issue #18286 has been reported by ccaviness (Clay Caviness).

16 messages 2021/11/03

[#105928] [Ruby master Feature#18287] Support nil value for sort in Dir.glob — "Strech (Sergey Fedorov)" <noreply@...>

Issue #18287 has been reported by Strech (Sergey Fedorov).

16 messages 2021/11/04

[#105944] [Ruby master Bug#18289] Enumerable#to_a should delegate keyword arguments to #each — "Ethan (Ethan -)" <noreply@...>

Issue #18289 has been reported by Ethan (Ethan -).

8 messages 2021/11/05

[#105967] [Ruby master Bug#18293] Time.at in master branch was 25% slower then Ruby 3.0 — "watson1978 (Shizuo Fujita)" <noreply@...>

Issue #18293 has been reported by watson1978 (Shizuo Fujita).

17 messages 2021/11/08

[#106008] [Ruby master Bug#18296] Custom exception formatting should override `Exception#full_message`. — "ioquatix (Samuel Williams)" <noreply@...>

Issue #18296 has been reported by ioquatix (Samuel Williams).

14 messages 2021/11/10

[#106033] [Ruby master Bug#18330] Make failure on 32-bit Linux (Android) with Clang due to implicit 64-to-32-bit integer truncation — "xtkoba (Tee KOBAYASHI)" <noreply@...>

Issue #18330 has been reported by xtkoba (Tee KOBAYASHI).

10 messages 2021/11/11

[#106053] [Ruby master Misc#18335] openindiana ruby 3.1 preview needs --disable-dtrace — "stes (David Stes)" <noreply@...>

Issue #18335 has been reported by stes (David Stes).

14 messages 2021/11/14

[#106069] [Ruby master Feature#18339] GVL instrumentation API — "byroot (Jean Boussier)" <noreply@...>

Issue #18339 has been reported by byroot (Jean Boussier).

13 messages 2021/11/15

[#106145] [Ruby master Misc#18346] DevelopersMeeting20211209Japan — "mame (Yusuke Endoh)" <noreply@...>

Issue #18346 has been reported by mame (Yusuke Endoh).

11 messages 2021/11/18

[#106173] [Ruby master Feature#18349] Let --jit enable YJIT — "k0kubun (Takashi Kokubun)" <noreply@...>

Issue #18349 has been reported by k0kubun (Takashi Kokubun).

8 messages 2021/11/19

[#106175] [Ruby master Feature#18351] Support anonymous rest and keyword rest argument forwarding — "jeremyevans0 (Jeremy Evans)" <noreply@...>

Issue #18351 has been reported by jeremyevans0 (Jeremy Evans).

10 messages 2021/11/19

[#106279] [Ruby master Feature#18364] Add GC.stat_size_pool for Variable Width Allocation — "peterzhu2118 (Peter Zhu)" <noreply@...>

Issue #18364 has been reported by peterzhu2118 (Peter Zhu).

14 messages 2021/11/25

[#106308] [Ruby master Feature#18367] Stop the interpreter from escaping error messages — "mame (Yusuke Endoh)" <noreply@...>

Issue #18367 has been reported by mame (Yusuke Endoh).

13 messages 2021/11/29

[#106314] [Ruby master Feature#18368] Range#step semantics for non-Numeric ranges — "zverok (Victor Shepelev)" <noreply@...>

Issue #18368 has been reported by zverok (Victor Shepelev).

39 messages 2021/11/29

[#106341] [Ruby master Bug#18369] users.detect(:name, "Dorian") as shorthand for users.detect { |user| user.name == "Dorian" } — dorianmariefr <noreply@...>

Issue #18369 has been reported by dorianmariefr (Dorian Mari辿).

14 messages 2021/11/30

[#106347] [Ruby master Feature#18370] Call Exception#full_message to print exceptions reaching the top-level — "Eregon (Benoit Daloze)" <noreply@...>

Issue #18370 has been reported by Eregon (Benoit Daloze).

10 messages 2021/11/30

[ruby-core:106214] [Ruby master Feature#18349] Let --jit enable YJIT on supported platforms

From: "maximecb (Maxime Chevalier-Boisvert)" <noreply@...>
Date: 2021-11-22 19:56:19 UTC
List: ruby-core #106214
Issue #18349 has been updated by maximecb (Maxime Chevalier-Boisvert).


I think this is a good idea. I am assuming that `--jit` will remain not enabled by default (which is good).

----------------------------------------
Feature #18349: Let --jit enable YJIT on supported platforms
https://bugs.ruby-lang.org/issues/18349#change-94823

* Author: k0kubun (Takashi Kokubun)
* Status: Open
* Priority: Normal
----------------------------------------
## Proposal
* Rename the current `--jit` to `--mjit`, as well as reverting [Feature #17490]
* Let `--jit` mean `--yjit` on YJIT-supported platforms, and `--mjit` on other platforms.

## Use case
YJIT currently achieves better performance than MJIT in many benchmarks, which means users should choose YJIT over MJIT with Ruby 3.1 in many cases. Even in benchmarks where MJIT could perform well, you need to spend a lot of time to finish warmup and [tune MJIT carefully](https://speakerdeck.com/k0kubun/rubyconf-2021?slide=11) to see the peak performance.

However, it's hard for many people, not including heavy users like you reading this, to understand which JIT variant they should try and/or use MJIT properly. Assuming x86 is prevalent enough, I want to make YJIT the default JIT so that non-heavy users will be able to see the benefit of JIT earlier.



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