On 1/13/23 4:49 PM, Matt Wette wrote:
Please consider this patch for adding mmap(), munmap() and msync()
to libguile/filesys.c. Included is update for posix.texi and test
file mman.test.
Once included, feature 'mman should be #t.
Matt
Please add the attached file:
Please consider this patch for adding mmap(), munmap() and msync()
to libguile/filesys.c. Included is update for posix.texi and test
file mman.test.
Once included, feature 'mman should be #t.
Matt
From 6c944174d35d43f87340c8199d47f3f088fa6ca7 Mon Sep 17 00:00:00 2001
From: Matt Wette
Date:
Maxime Devos skribis:
> On 13-01-2023 12:32, Ludovic Courtès wrote:
>>> IIUC, if you use bytevector-slice iteratively, say:
>>>
>>> (let loop ((bv some-initial-value)
>>> (n large-number))
>>>(if (> n 0)
>>>(loop (bytevector-slice bv 0 (bytevector-length bv))
>>>
Hi
Right now the manual just mentions (scheme base), but not the contents. This
patch at least makes sure that at least the bytevector-related R7RS functions
appear in the index.
The patch documents a first group of purely bytevector functions and a second
group of binary I/O that are not
for (i=start; i<=stop; i++) { /* i is private by default */
scm_init_guile();
scm_call_1( func , scm_from_int(i) );
IIUC, you are calling scm_init_guile once per index, whereas calling it
once per thread would suffice. For better performance, I propose doing
it once per thread.
On 13-01-2023 12:32, Ludovic Courtès wrote:
IIUC, if you use bytevector-slice iteratively, say:
(let loop ((bv some-initial-value)
(n large-number))
(if (> n 0)
(loop (bytevector-slice bv 0 (bytevector-length bv))
(- n 1))
bv))
you will end up with a
Hi,
Maxime Devos skribis:
> The only thing missing for me, is a procedure
> 'bytevector-slice/read-only' and 'bytevector-slice/write-only', then I
> could throw the module implementing the wrapping in Scheme-GNUnet and
> the overhead incurred by wrapping away.
I did consider the read-only
i made some test of openMP and Guile with Guile 3.0.8.99-f3ea8 on MacOS M1
and Linux Intel because i was not sure of the performances. I find a
problem on Linux the code is slower (could be a factor of 5) with openMP
and in Mac OS the gain is is of 100% (divide by 2) or 15% depending of
> On 12 Jan 2023, at 23:27, Ludovic Courtès wrote:
>
> lloda skribis:
>
>>> On 11 Jan 2023, at 18:37, Thompson, David wrote:
>>>
>>> On Wed, Jan 11, 2023 at 12:34 PM Ludovic Courtès wrote:
What could be convenient though is ‘bytevector-copy’ (no bang), which
would combine
