Hi Cédric,
Cedric Cellier writes:
> 1.9.11 version still seams a bit slower than 1.8.7,
At doing what? Is there a minimal test case you could post?
> most of the time being spent in vm_debug_engine,
That’s the bytecode interpreter, so it’s expected. :-)
> malloc and free.
That’s more surp
-[ Wed, Aug 18, 2010 at 09:16:15AM -0700, Andy Wingo ]
> You're probably not hitting the compiler for some reason. I think that
> scm_primitive_load doesn't support autocompilation, where it probably
> should. Is that the function you're using to load your Scheme code?
Ok, the file I load with
> Guile 1.9's interpreter is slower than 1.8's interpreter, but 1.9 has a
> compiler, and compiled Scheme runs much faster than 1.8.
"much faster" is very nice to hear !
> You're probably not hitting the compiler for some reason. (...)
> To work around it for now, call `load' from scheme. I know
Hi Cedric,
On Tue 17 Aug 2010 07:08, Cedric Cellier writes:
> As a side note, I find libguile 1.9 slower than libguile 1.8.7.
> I suppose, being an unstable version, it's compiled by default
> with many debug options on. Is there an easy way to configure it
> for fast execution, for benchmarking
Hi,
Cedric Cellier writes:
> But finaly, thanks to libgc's debug message, I got it.
> Actually, libgc overwrite pthread_create (and pthread_sigmask,
> and a few more) to know when a new thread is started.
> But this overloading is done "softly", ie. by a define in a
> C header file.
[...]
> So
Hi!
Cedric Cellier writes:
> I do not understand how this GC works, but find it strange that this global
> variable is changed like this, especially since the libgc gc.h reads :
> "GC_all_interior_pointers (...) May not be changed after GC initialization."
‘scm_storage_prehistory’ does that in
Ok, this bug was fixed but not the actual bug I was after.
But finaly, thanks to libgc's debug message, I got it.
Actually, libgc overwrite pthread_create (and pthread_sigmask,
and a few more) to know when a new thread is started.
But this overloading is done "softly", ie. by a define in a
C heade
I'm using libgc v 7.2alpha4.
Apparently the value of GC_all_interior_pointers is 1 when initializing
the GC (so GC_old_normal_bl is not initialized) and suddenly is set to 1
so that the next call to GC_is_black_listed dereference it and thus
crash.
It's set to 0 by scm_storage_prehistory in ligui
% cat main.c
#include
#include
#include
pthread_t dumper;
static void *call_gc(void *null)
{
scm_gc();
return NULL;
}
void *thread_dumper(void *null)
{
scm_with_guile(call_gc, NULL);
return NULL;
}
int main(void)
{
while (1) {
pthread_create(&dumper, NULL, t
