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Re: Guile's time execution issues

From: Ludovic Courtès
Subject: Re: Guile's time execution issues
Date: Sun, 26 Apr 2020 19:16:29 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux)

Bon dia!

Aleix Conchillo Flaqué <address@hidden> skribis:

> I was trying to get some guile-json performance times loading large JSON
> file. However, I'm getting increasing numbers at each run, so I'm wondering
> if I'm doing something wrong. Below you can see how the first run took
> 19.95s and then running the same command kept increasing.
> I'm running Guile 2.2.7 on macOS Catalina 10.15.3.
> scheme@(guile-user)> (use-modules (json))
> scheme@(guile-user)> ,t (define a (call-with-input-file
> "/Users/aleix/Downloads/large-file.json" (lambda (port) (json->scm port))))
> ;; 19.956429s real time, 87.100982s run time.  75.270202s spent in GC.
> ;; 26.173179s real time, 143.645265s run time.  131.022631s spent in GC.
> ;; 28.193926s real time, 154.758375s run time.  141.697236s spent in GC.
> ;; 29.044218s real time, 160.745984s run time.  147.449073s spent in GC.
> ;; 30.480873s real time, 170.855527s run time.  157.332793s spent in GC.
> ;; 30.555700s real time, 172.938278s run time.  159.468737s spent in GC.
> ;; 32.190478s real time, 172.807551s run time.  158.905645s spent in GC.

Could this have to do with <>?

Could you check if that happens with 3.0.2?  (Or suggest a
‘large-file.json’ to use.  :-))

Thanks in advance!


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