[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Problem with guile-2.9.1-prerelease
From: |
David Kastrup |
Subject: |
Re: Problem with guile-2.9.1-prerelease |
Date: |
Thu, 11 Oct 2018 21:04:31 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) |
Carl Sorensen <address@hidden> writes:
> On 10/11/18, 12:35 PM, "lilypond-devel on behalf of Urs Liska"
> <address@hidden on behalf of
> address@hidden> wrote:
>
>
>
> Am 11. Oktober 2018 20:17:45 MESZ schrieb Karlin High <address@hidden>:
> >On 10/11/2018 12:59 PM, David Kastrup wrote:
> >What level of optimism is appropriate for that claim?
>
> I don't think that tells us very much. From 1.8 to 2 they added
> "significant improvements" that caused massive performance problems
> for our specific use case. And I woulcn't bet too much money that the
> improvements you mention specifically address these issues ...
>
>
> On the other hand, the 3.0 test that they report on indicates that the
> new JIT compile code is almost as fast as 1.8.
That makes little to no sense since 1.8 was slower than Guile 2 for most
compiled code.
The only thing I can imagine is that they mean the new JIT compile code
is almost as fast as programming in C while manipulating SCM data with
the 1.8 API calls.
> And the way around the performance issues with 2 was to use
> precompiled bytecode because the compiler was slow. This new JIT
> compile claims to not need bytecode, so I am optimistic....
Our problems is not code written in Scheme but passing stuff between C++
and Scheme. Let's hope your optimism turns out more vindicated than my
pessimism.
--
David Kastrup
- Re: Problem with guile-2.9.1-prerelease, (continued)
- Re: Problem with guile-2.9.1-prerelease, Thomas Morley, 2018/10/11
- Re: Problem with guile-2.9.1-prerelease, David Kastrup, 2018/10/12
- Re: Problem with guile-2.9.1-prerelease, Thomas Morley, 2018/10/14
- Re: Problem with guile-2.9.1-prerelease, Thomas Morley, 2018/10/14
- Re: Problem with guile-2.9.1-prerelease, Urs Liska, 2018/10/11
- Re: Problem with guile-2.9.1-prerelease, Carl Sorensen, 2018/10/11
- Re: Problem with guile-2.9.1-prerelease,
David Kastrup <=
- Re: Problem with guile-2.9.1-prerelease, David Kastrup, 2018/10/11