From: Han-Wen Nienhuys <hanwenn@gmail.com>
To: guile-devel@gnu.org
Subject: Re: garbage collection slowdown
Date: Sat, 1 Feb 2020 10:34:32 +0100 [thread overview]
Message-ID: <CAOw_e7aDrRZ9_zhh5_P7BqsXAeHvRNoQSAJRnpTF_Rg7nsUkQw@mail.gmail.com> (raw)
In-Reply-To: <CAOw_e7Y8wkZuS_VKVZE0zkSSmnLeMeEdEOesJ4rsjWj1kZ2N5w@mail.gmail.com>
On Tue, Jan 28, 2020 at 11:41 PM Han-Wen Nienhuys <hanwenn@gmail.com> wrote:
> Unfortunately, it looks like the adoption of the BDW GC library caused
> a ~6x slowdown, causing an overall end-to-end slowdown of 50%.
>
> I was wondering if you folks would have tips to further tune GC for
> wall-time speed, and if there additional diagnostics to see if we're
> doing something extraordinarily silly.
For the record, I managed to solve this, by scaling up the heap more
aggressively. See
https://codereview.appspot.com/561390043/diff/557260051/lily/score-engraver.cc
Ironically, this is the same problem scenario that led me to
refactoring the GUILE GC in ~2002, in
c8a1bdc460f892847d0fb3f1321cdeb305160bf8.
--
Han-Wen Nienhuys - hanwenn@gmail.com - http://www.xs4all.nl/~hanwen
next prev parent reply other threads:[~2020-02-01 9:34 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-28 22:41 garbage collection slowdown Han-Wen Nienhuys
2020-01-29 0:47 ` Arne Babenhauserheide
2020-01-29 7:17 ` Han-Wen Nienhuys
2020-02-01 9:34 ` Han-Wen Nienhuys [this message]
2020-02-05 16:22 ` Ludovic Courtès
2020-02-05 22:31 ` Han-Wen Nienhuys
2020-02-06 14:06 ` Mikael Djurfeldt
2020-02-06 17:19 ` Ludovic Courtès
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