* bug#53482: Byte-code speedup [PATCH]
@ 2022-01-23 16:57 Mattias Engdegård
2022-01-23 18:33 ` Lars Ingebrigtsen
2022-01-23 22:20 ` Dmitry Gutov
0 siblings, 2 replies; 7+ messages in thread
From: Mattias Engdegård @ 2022-01-23 16:57 UTC (permalink / raw)
To: 53482
The branch scratch/bytecode-speedup now contains a set of related improvements to speed up the byte-code interpreter. If someone is allergic to Git, I could post them as separate patches.
Performance is improved in many ways but is mostly focussed on making Elisp's lamentably slow function calls faster, which should benefit a lot of code. Operations on fixnums have also been sped up, as well as some data structure access.
Equally importantly, the C stack requirements has shrunk meaning that users can recurse deeper before getting a segfault. For example, bytecode is no longer copied to a stack buffer for execution. I intend to carry this process further in a set of follow-up patches, but the current changes are definitely good enough on their own.
I have run a wide set of benchmarks; regressions are rare but obviously not all code benefits equally. Most code becomes at least a little faster.
Unless there are good arguments not to, I'll merge it to master shortly.
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#53482: Byte-code speedup [PATCH]
2022-01-23 16:57 bug#53482: Byte-code speedup [PATCH] Mattias Engdegård
@ 2022-01-23 18:33 ` Lars Ingebrigtsen
2022-01-23 21:27 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-01-23 22:20 ` Dmitry Gutov
1 sibling, 1 reply; 7+ messages in thread
From: Lars Ingebrigtsen @ 2022-01-23 18:33 UTC (permalink / raw)
To: Mattias Engdegård; +Cc: 53482, monnier
Mattias Engdegård <mattiase@acm.org> writes:
> The branch scratch/bytecode-speedup now contains a set of related
> improvements to speed up the byte-code interpreter. If someone is
> allergic to Git, I could post them as separate patches.
Perhaps Stefan M has some comments; added to the CCs.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#53482: Byte-code speedup [PATCH]
2022-01-23 18:33 ` Lars Ingebrigtsen
@ 2022-01-23 21:27 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-01-23 21:30 ` Lars Ingebrigtsen
0 siblings, 1 reply; 7+ messages in thread
From: Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors @ 2022-01-23 21:27 UTC (permalink / raw)
To: Lars Ingebrigtsen; +Cc: Mattias Engdegård, 53482
>> The branch scratch/bytecode-speedup now contains a set of related
>> improvements to speed up the byte-code interpreter. If someone is
>> allergic to Git, I could post them as separate patches.
> Perhaps Stefan M has some comments; added to the CCs.
I already sent him my comments on earlier (private) rounds ;-)
I like those patches.
Stefan
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#53482: Byte-code speedup [PATCH]
2022-01-23 16:57 bug#53482: Byte-code speedup [PATCH] Mattias Engdegård
2022-01-23 18:33 ` Lars Ingebrigtsen
@ 2022-01-23 22:20 ` Dmitry Gutov
2022-01-23 22:44 ` Dmitry Gutov
1 sibling, 1 reply; 7+ messages in thread
From: Dmitry Gutov @ 2022-01-23 22:20 UTC (permalink / raw)
To: Mattias Engdegård, 53482
On 23.01.2022 18:57, Mattias Engdegård wrote:
> I have run a wide set of benchmarks; regressions are rare but obviously not all code benefits equally. Most code becomes at least a little faster.
I'm seeing ~3% improvement in a js2-mode benchmark. Not revolutionary,
but nothing to sneeze at.
Thanks, Mattias.
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2022-01-24 15:47 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-01-23 16:57 bug#53482: Byte-code speedup [PATCH] Mattias Engdegård
2022-01-23 18:33 ` Lars Ingebrigtsen
2022-01-23 21:27 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-01-23 21:30 ` Lars Ingebrigtsen
2022-01-24 15:47 ` Mattias Engdegård
2022-01-23 22:20 ` Dmitry Gutov
2022-01-23 22:44 ` Dmitry Gutov
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