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Re: Filtering out process filters


From: Daniel Colascione
Subject: Re: Filtering out process filters
Date: Fri, 06 Jun 2025 09:08:09 -0700
User-agent: K-9 Mail for Android


On June 6, 2025 12:17:47 AM PDT, Augusto Stoffel <arstoffel@gmail.com> wrote:
>On Thu,  5 Jun 2025 at 01:09, Daniel Colascione wrote:
>
>> Augusto Stoffel <arstoffel@gmail.com> writes:
>>> Did you see my previous message, where I changed the benchmark to not
>>> block the UI?  Benchmarks that do
>>>
>>>   (while (accept-process-output ...))
>>>
>>> on the main thread are not representative of the typical use cases.
>
>> I tried your version in both interactively and in batch mode, on NS.
>> Interactively, it didn't finish.  Profiling indicated ~100% of CPU time
>> was spent on lock waits in ns_select and, on another thread, logging(!).
>>
>> In batch mode (I had Emacs join your thread), performance was the same
>> as we've been discussing.  Same in -nw.  Something seems wrong with the
>> NS event loop, but I think that's orthogonal to this discussion.
>
>If you join the thread then the UI blocks, so one should indeed expect
>the original behavior.

I joined it only in the batch case, since otherwise the batch process exits 
immediately. 

>If you want to see how the ACF method influences the time spent on
>redisplay then you need to really let the thread and the main loop run
>freely.

Redisplay doesn't happen only on the editing loop.



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