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Re: Default compiler optimization level for building dev sources


From: John Wiegley
Subject: Re: Default compiler optimization level for building dev sources
Date: Fri, 22 Apr 2016 10:56:55 -0700
User-agent: Gnus/5.130014 (Ma Gnus v0.14) Emacs/25.0.92 (darwin)

>>>>> Óscar Fuentes <address@hidden> writes:

> I'm using Emacs 25.0.92 on Windows and it seems remarkably slower than the
> previous binary. This one was built with a plain config && make while the
> previous one had CFLAGS set to -O3 and other extra optimization flags.

What flavor of slowness do you experience?

One thing I've noticed with 25.0.92 and OS X is that Emacs 25 can be very
"pausy". That is, I'll do something (even just switch buffers), and suddenly
Emacs is locked for about 5-10 seconds, with absolutely no indication before
or after of what is happening.  Maybe it's GC?

Especially with ERC, this is quite noticeable because it happens in the middle
of a conversation. In Emacs 24 I never experienced this much stalling (just a
little bit).

However, this has been impossible to track down thus far; but I wonder if what
you're seeing is at all similar.

-- 
John Wiegley                  GPG fingerprint = 4710 CF98 AF9B 327B B80F
http://newartisans.com                          60E1 46C4 BD1A 7AC1 4BA2



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