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bug#21514: Guile 2.2: Sluggish elf calls, esp around arity / promises /
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From: |
Andy Wingo |
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Subject: |
bug#21514: Guile 2.2: Sluggish elf calls, esp around arity / promises / statprof |
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Date: |
Fri, 24 Jun 2016 14:24:37 +0200 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) |
On Fri 18 Sep 2015 17:19, Christopher Allan Webber <address@hidden> writes:
> I was testing a program of mine under Guile 2.2, and was surprised to
> find things slower than in Guile 2.0, surprising given all the various
> optimizations I've heard about! However, I think I've found good clues
> as to what's going on.
(Summary: procedure-minimum-arity, called via `thunk?' when making
promises, was doing a lot of work, grovelling debuginfo to answer simple
questions.)
I fixed procedure-minimum-arity to be quicker, which should fix this
bug. Please let me know if you see thunk? as a perf problem in your use
case.
In the meantime I seem to have broken ,trace :/ I'll see what the deal
is there.
Andy