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Re: MPS experiment successful


From: Gerd Möllmann
Subject: Re: MPS experiment successful
Date: Thu, 18 Apr 2024 06:31:02 +0200
User-agent: Gnus/5.13 (Gnus v5.13)

Dmitry Gutov <dmitry@gutov.dev> writes:

> On 17/04/2024 17:30, Gerd Möllmann wrote:
>> What MPS means for the overall speed of Emacs I find impossible to say.
>> MPS doesn't seem to be slow at all though, although some slowdown can be
>> expected in the client because of thread-safe allocations.
>> Example for a confusing fact that I noticed today:
>> Full build without MPS, -O0, checking
>> real 26:20.01
>> user 1:32:15.54
>> sys  3:20.74
>> Same build with debug MPS (-lmps-debug)
>> real 14:07.90
>> user 44:17.94
>> sys  3:15.99
>
> That sounds pretty great, though.
>
> One might have worried that a new GC would help exchange better
> (lower) latencies for lower throughput, but that doesn't seem to be
> the case.

Or it's a fluke of some kind I'm too dumb to understand. (Trying to damp
expectations a bit :-)).



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