From: Stefan Israelsson Tampe <stefan.itampe@gmail.com>
To: Mikael Djurfeldt <mikael@djurfeldt.com>
Cc: guile-user <guile-user@gnu.org>, guile-devel <guile-devel@gnu.org>
Subject: Re: Python-on-guile
Date: Sat, 24 Apr 2021 17:19:25 +0200 [thread overview]
Message-ID: <CAGua6m1eiapj5DV8Y0aKOxCtaPQVmU=YPwioBwyLLLstap--cw@mail.gmail.com> (raw)
In-Reply-To: <CAGua6m20-XXDyoYvo7V8iXPn33chFTzjG=+DzRCXpESvRTOX7w@mail.gmail.com>
[-- Attachment #1: Type: text/plain, Size: 2455 bytes --]
Guile is 3x faster then fastest python-on-guile which is 2x faster then
python3 Cpython
attached is a guile corresponding program.
On Sat, Apr 24, 2021 at 4:41 PM Stefan Israelsson Tampe <
stefan.itampe@gmail.com> wrote:
> To note is that 'continue' is killing performance for python-on-guile
> programs, so by changing the
> code to not use continue lead to python-on-guile running twice the speed
> of python3. The reason is that
> the while loop is used as
> (while (...)
> (let/ec continue
> ...))
>
> And the let/ec is probably not optimally compiled. Python-on-guile will
> check the loop for continue usage and if not then it will skip the let/ec.
>
> I attached the code not using continue
>
> On Sat, Apr 24, 2021 at 2:59 PM Stefan Israelsson Tampe <
> stefan.itampe@gmail.com> wrote:
>
>> Actually changing in (language python compile),
>>
>> (define (letec f)
>> (let/ec x (f x))))
>>
>> To
>>
>> (define-syntax-rule (letec f)
>> (let/ec x (f x))))
>>
>> Actually lead to similar speeds as python3.
>>
>>
>>
>> On Sat, Apr 24, 2021 at 1:26 PM Stefan Israelsson Tampe <
>> stefan.itampe@gmail.com> wrote:
>>
>>> Pro tip, when running this on guile the scheme code that it compilse to
>>> is located in log.txt.
>>> If you ,opt the resulting code in a guile session you might be able to
>>> pinpoint issues that
>>> delays the code execution.
>>>
>>> On Sat, Apr 24, 2021 at 12:04 PM Mikael Djurfeldt <mikael@djurfeldt.com>
>>> wrote:
>>>
>>>> (I should perhaps add that my script doesn't benchmark the object
>>>> system but rather loops, conditionals and integer arithmetic.)
>>>>
>>>> Den fre 23 apr. 2021 17:00Mikael Djurfeldt <mikael@djurfeldt.com>
>>>> skrev:
>>>>
>>>>> Hi,
>>>>>
>>>>> Yesterday, Andy committed new code to the compiler, some of which
>>>>> concerned skipping some arity checking.
>>>>>
>>>>> Also, Stefan meanwhile committed something called "reworked object
>>>>> system" to his python-on-guile.
>>>>>
>>>>> Sorry for coming with unspecific information (don't have time to track
>>>>> down the details) but I noticed that my benchmark script written in Python,
>>>>> and which computes the 20:th Ramanujan number, now runs 60% faster than
>>>>> before these changes.
>>>>>
>>>>> This means that python-on-guile running on guile3 master executes
>>>>> python code only 2.6 times slower than the CPython python3 interpreter
>>>>> itself. :-)
>>>>>
>>>>> Have a nice weekend all,
>>>>> Mikael
>>>>>
>>>>>
[-- Attachment #2: ram.scm --]
[-- Type: text/x-scheme, Size: 1125 bytes --]
(define (ramanujan n)
(let lp ((w 0) (b0 1) (n n))
(if (> n 0)
(let ((w (+ w 1)))
(let lp2 ((b0 b0))
(if (< (+ 1 (* b0 b0 b0)) w)
(lp2 (+ b0 1))
(let lp3 ((a 1) (a3 1) (b b0) (b3 (* b0 b0 b0)) (count 0))
(if (<= a b)
(let ((s (+ a3 b3)))
(cond
((< s w)
(let ((aa (+ a 1)))
(lp3 aa (* aa aa aa) b b3 count)))
((= s w)
(let ((count (+ count 1)))
(if (> count 1)
(lp w b0 (- n 1))
(let* ((b (- b 1))
(b3 (* b b b)))
(lp3 a a3 b b3 count)))))
(else
(let* ((b (- b 1))
(b3 (* b b b)))
(lp3 a a3 b b3 count)))))
(lp w b0 n))))))
w)))
(pk (ramanujan 20))
next prev parent reply other threads:[~2021-04-24 15:19 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-23 15:00 Python-on-guile Mikael Djurfeldt
2021-04-23 20:35 ` Python-on-guile Zelphir Kaltstahl
2021-04-23 20:41 ` Python-on-guile Linus Björnstam
2021-04-23 21:04 ` Python-on-guile Matt Wette
2021-04-24 9:43 ` Python-on-guile Mikael Djurfeldt
2021-04-24 10:04 ` Python-on-guile Mikael Djurfeldt
2021-04-24 11:26 ` Python-on-guile Stefan Israelsson Tampe
2021-04-24 12:59 ` Python-on-guile Stefan Israelsson Tampe
2021-04-24 14:41 ` Python-on-guile Stefan Israelsson Tampe
2021-04-24 15:19 ` Stefan Israelsson Tampe [this message]
2021-04-25 8:20 ` Python-on-guile Mikael Djurfeldt
2021-04-25 10:21 ` Python-on-guile Stefan Israelsson Tampe
2021-04-25 8:46 ` Python-on-guile Stefan Israelsson Tampe
2021-04-25 10:54 ` Python-on-guile Dr. Arne Babenhauserheide
2021-04-25 11:54 ` Python-on-guile Vivien Kraus via General Guile related discussions
2021-04-25 10:18 ` Python-on-guile Stefan Israelsson Tampe
2021-04-27 12:29 ` Python-on-guile Nala Ginrut
-- strict thread matches above, loose matches on Subject: below --
2020-02-09 17:30 python-on-guile david larsson
2020-02-09 17:59 ` python-on-guile Stefan Israelsson Tampe
2020-02-09 19:39 ` python-on-guile david larsson
[not found] ` <CAGua6m1aQuwGu4ZRRk9r1Ytao_QjftzCQK5+tb_B4axh-Y3aWg@mail.gmail.com>
[not found] ` <CAGua6m1VFHsaid+CGUN==3AvXqZTZUO8xbOSh3r4xNVTAik79g@mail.gmail.com>
[not found] ` <CAGua6m3vTY=hk8QaEoKUvFwPsm7N-uatMV1KyvgdAyKS4Gjh9g@mail.gmail.com>
2020-02-10 12:13 ` python-on-guile david larsson
2020-02-10 14:40 ` python-on-guile Stefan Israelsson Tampe
2020-02-10 14:46 ` python-on-guile Stefan Israelsson Tampe
2020-02-10 20:11 ` python-on-guile Stefan Israelsson Tampe
2020-02-11 7:17 ` python-on-guile david larsson
2020-02-11 10:44 ` python-on-guile Stefan Israelsson Tampe
2020-02-11 20:57 ` python-on-guile Stefan Israelsson Tampe
2020-02-12 9:18 ` python-on-guile david larsson
2020-02-12 9:59 ` python-on-guile Stefan Israelsson Tampe
2020-02-12 15:26 ` python-on-guile david larsson
[not found] ` <CAGua6m2SP2RZ1Ok5bG2xmoHGanmRUrfaG34yY7P8=AWs0fXw2g@mail.gmail.com>
2020-02-12 19:47 ` python-on-guile david larsson
[not found] ` <CAGua6m1rcNZT_15LN=dWRb66E93UyLDFfdkaJjmyWYerWE9Jpg@mail.gmail.com>
[not found] ` <46dbd813788cc3d1dc0b994106c8a528@selfhosted.xyz>
[not found] ` <CAGua6m12ytkdDcHj+PEx615qCzaXPB4P+u-DCqWQexuRo28BWA@mail.gmail.com>
2020-02-13 7:30 ` python-on-guile david larsson
[not found] ` <CAGua6m2+hEpGf8Z+CfyO+-mKH4sQF-mVb7YS1=+88hF2bRkjPw@mail.gmail.com>
2020-02-18 10:45 ` python-on-guile david larsson
[not found] ` <CAGua6m0d=L9b9MEMYekX0tL0PO3k+ZR+LP=7YYQojzr0VYdkmw@mail.gmail.com>
2020-02-19 7:30 ` python-on-guile david larsson
2019-07-09 17:15 python-on-guile Stefan Israelsson Tampe
2019-06-14 18:06 python-on-guile Stefan Israelsson Tampe
2019-06-22 21:07 ` python-on-guile Arne Babenhauserheide
2019-06-26 18:45 ` python-on-guile Nala Ginrut
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