Walter Bright Wrote:
> ws wrote:
> > Here is what i did:
> >
> > c:\>windbg winsamp.exe Press F5 to start running, then just close the
> > winsamp.exe.
> >
> > Couple of secs later windbg crashed with 'The instruction at
> > 0x731444fe referenced memory at 0x...' while it is unloading
>
ws wrote:
Ah, finally I found the culprit!
It is the unlocker.exe running in the background, and that crashes windbg
running D windows app consistently when it exits. (does not affect the console
app).
Took me a long time to find out.
Thanks for your concerns!
What's unlocker.exe ?
On Sun, Mar 15, 2009 at 10:46 AM, Walter Bright
wrote:
> ws wrote:
>>
>> Ah, finally I found the culprit!
>> It is the unlocker.exe running in the background, and that crashes windbg
>> running D windows app consistently when it exits. (does not affect the
>> console app).
>> Took me a long time t
Robert Clipsham, the pages are indeed improved a lot. Thank you for your work.
>with all benchmarks limited to 256mb memory usage<
- Some benchmarks of the Shootout site will probably need more than 256 mb of
RAM.
> The only request I believe I've missed (correct me if I'm wrong!) is a C
> or
bearophile wrote:
Robert Clipsham, the pages are indeed improved a lot. Thank you for your work.
Thanks, I'm glad you approve!
with all benchmarks limited to 256mb memory usage<
- Some benchmarks of the Shootout site will probably need more than 256 mb of
RAM.
None of the ones that I'm cu
Don wrote:
Walter Bright wrote:
Don wrote:
The math functions need to work for any rounding mode, not just the
default mode. They also set the status flags correctly. In fact, they
are almost the only functions where this matters!
Ok, then std.math functions cannot be pure in either your or
On Sat, 14 Mar 2009 23:50:58 -0400, bearophile wrote:
> While doing some string processing I've seen some unusual timings
> compared to the C code, so I have written this to see the situation
> better. When USE_MEMCPY is false this little benchmark runs about 3+
> times slower:
I did a little ben
What is the recommended way of populating a std.date Date struct from a d_time
value returned by getUTCtime()?
I'm probably being very dense, but it seems to me that at present I have to
convert the d_time value to a formatted date string, and then parse that. This
seems very inefficient.
Also
Robert Clipsham:
I have seen you have put all graphs in a page. This is probably better. When
you have 10-20 benchmarks you may need less thick bars.
You can add the raw timings, formatted into an ASCII table, a bit like this
(don't use an HTML table):
http://zi.fi/shootout/rawresults.txt
There
Moritz Warning:
> I don't see a very big difference between slice copying and memcpy (but
> between compilers).
I have taken the times again. My timings, best of 4:
true: 1.33 s
false: 4.28 s
I have used dmd 1.041, with Phobos, on WinXP 32 bit, 2 GB RAM, CPU Core 2 at 2
GHz.
This may be anothe
bearophile wrote:
Robert Clipsham:
I have seen you have put all graphs in a page. This is probably better. When
you have 10-20 benchmarks you may need less thick bars.
You can add the raw timings, formatted into an ASCII table, a bit like this
(don't use an HTML table):
http://zi.fi/shootout/
On Sun, 15 Mar 2009 13:17:50 +, Moritz Warning wrote:
> On Sat, 14 Mar 2009 23:50:58 -0400, bearophile wrote:
>
>> While doing some string processing I've seen some unusual timings
>> compared to the C code, so I have written this to see the situation
>> better. When USE_MEMCPY is false this
Sun, 15 Mar 2009 13:17:50 + (UTC), Moritz Warning wrote:
> On Sat, 14 Mar 2009 23:50:58 -0400, bearophile wrote:
>
>> While doing some string processing I've seen some unusual timings
>> compared to the C code, so I have written this to see the situation
>> better. When USE_MEMCPY is false th
For reference here's a simple C version:
#include "stdlib.h"
#include "string.h"
#include "stdio.h"
#define N 1
#define L 6
char h[L] = "hello\n";
int main() {
char *ptr;
if (N <= 100)
ptr = malloc(N * L + 1); // the +1 is for the final printing
else
ptr = ma
Robert Clipsham:
>I've got a better idea. That page is automatically generated from an xml file,
>I'll just make that available instead.<
I don't like XML; a small txt table is so easy to process with three lines of
Python... :-)
(Json is fine too).
>I would probably have to exclude tests tha
Jacob Carlborg wrote:
(it would however be nice if DMD for Mac OS X could be taught to accept
the most straightforward syntax for it, i.e. "dmd -framework Carbon")
I asked that ldc should add this but they said something about a linker
flag shouldn't be available as a compiler flag.
I guess
Sun, 15 Mar 2009 10:31:10 -0400, bearophile wrote:
> The ASM of the inner loop:
>
> L: movl_h, %eax
> movl%eax, (%edx)
> movzwl _h+4, %eax
> movw%ax, 4(%edx)
> addl$6, %edx
> cmpl%ecx, %edx
> jne L
Obviously, a memcpy intrinsic is at work here. DMD
Sergey Gromov:
> Obviously, a memcpy intrinsic is at work here.<
Yes, gcc is able to recognize some calls to C library functions and replace
them with intrinsics.
I think LDC too uses an intrinsic to copy memory of a slice.
This isn't a too much interesting benchmark, there's nothing much
intere
bearophile wrote:
I don't like XML; a small txt table is so easy to process with three lines of
Python... :-)
(Json is fine too).
If you would like to provide me with a script to convert the xml file to
a text table, I'll happily run it and make it available to you. As it is
I'm too lazy to
Oh, on Windows, condition variables were added in Vista, so that code
won't work on XP or earlier.
They're already in druntime for D2, though they haven't been distributed
yet (dunno why). And they can act like they're built in:
class C
{
Mutex m;
Condition c;
this()
{
// make m this object's monitor
m = new Mutex( this );
c = new Condition( m );
Sean Kelly Wrote:
> They're already in druntime for D2, though they haven't been distributed
> yet (dunno why). And they can act like they're built in:
>
> class C
> {
> Mutex m;
> Condition c;
>
> this()
> {
> // make m this object's monitor
> m = new
Jeremie Pelletier wrote:
Sean Kelly Wrote:
They're already in druntime for D2, though they haven't been distributed
yet (dunno why). And they can act like they're built in:
class C
{
Mutex m;
Condition c;
this()
{
// make m this object's monitor
m =
Robert Clipsham Wrote:
> bearophile wrote:
> > I don't like XML; a small txt table is so easy to process with three lines
> > of Python... :-)
> > (Json is fine too).
>
> If you would like to provide me with a script to convert the xml file to
> a text table, I'll happily run it and make it ava
Steve Teale wrote:
What is the recommended way of populating a std.date Date struct from
a d_time value returned by getUTCtime()?
I'm probably being very dense, but it seems to me that at present I
have to convert the d_time value to a formatted date string, and then
parse that. This seems very
Let's say we have A which is in a floatingpoint module, B which is in a
non-floatingpoint module and C which is marked pure in a
non-floatingpoint module:
-
module A(floatingpoint);
void a()
{
set mode;
b();
restore mode;
}
module B;
Following up on a discussion from yesterday, it's become increasingly clear to
me that the current associative array implementation interacts poorly with
conservative garbage collection and D's memory allocator. In the current
design, we have a struct that holds two pointers, the hash, the key and
Walter Bright wrote:
Let's say we have A which is in a floatingpoint module, B which is in a
non-floatingpoint module and C which is marked pure in a
non-floatingpoint module:
-
module A(floatingpoint);
void a()
{
set mode;
b();
restore mode;
}
-
Joel C. Salomon:
> On the 754r mailing list, the HPC crowd was *very* insistent that static
> modes be explicitly in the standard.
Because in technology lot of things aren't determined on technological merits,
but by politics, money and power. Sometimes behind some of the best things you
can fin
Don wrote:
A has called a function in B. B is not a floatingpoint module, so b()
can only be called when the mode is set back to the default. a()
violates this contract, so a() is incorrect. There's nothing wrong with
b() or c(). If a() wants to call b(), it needs to restore the mode
first; or
naryl:
> I think this will suffice:
> $ sed 's/<[^>]*>//g; /^$/d' < data | sed 'N; N; N; N; N; N; s/\n/ /g'
A Python version a little more resilient to changes in that file:
from xml.dom.minidom import parse
results1 = parse("results.xml").getElementsByTagName("results")
results = results1[0].get
Sorry, assuming a "tidy XML file" is silly. Better:
from xml.dom.minidom import parse
r = parse("results.xml").getElementsByTagName("results")
results = r[0].getElementsByTagName("result")
# print field names
fields = [n.localName for n in results[0].childNodes if n.nodeType !=
n.TEXT_NODE]
pri
Sean Kelly Wrote:
> I considered this as well, but it imposes limitations that aren't
> present with the current approach. It's possible to have more than one
> condition associated with a particular mutex, for example, and to plug
> in a shared mutex for interprocess synchronization using 'sy
I don't know if it's really a bug, but the package protection attribute seems
to have a different semantic in the current packages than in nested packages.
For example, say you have the module test which declares the following:
---
module test.Foo;
package uint myVar;
package class MyClass {}
p
bearophile wrote:
> Joel C. Salomon:
>> On the 754r mailing list, the HPC crowd was *very* insistent that static
>> modes be explicitly in the standard.
>
> Because in technology lot of things aren't determined on technological
> merits, but by politics, money and power. Sometimes behind some o
On Sun, 15 Mar 2009 06:27:42 +1300, BCS wrote:
there is no compact form for alias but this
T Foo(T)(T t) { return t; }
is internally identical the the more verbose form:
template Foo(T) { T Foo(T t){ return t; } }
Hi BCS. On this page: http://www.digitalmars.com/d/1.0/template.html
sc
On Sun, Mar 15, 2009 at 5:55 PM, Jeremie Pelletier wrote:
> I don't know if it's really a bug, but the package protection attribute seems
> to have a different semantic in the current packages than in nested packages.
>
> For example, say you have the module test which declares the following:
> -
Robert Clipsham, eventually your site may become like this page (it may be slow
to load, you may need to load it later too):
http://sbcl.boinkor.net/bench/
It's also useful to see how performance evolves across versions, like a brother
of bugzilla, to spot performance bugs.
Bye,
bearophile
Hello Tim,
On Sun, 15 Mar 2009 06:27:42 +1300, BCS wrote:
there is no compact form for alias but this
T Foo(T)(T t) { return t; }
is internally identical the the more verbose form:
template Foo(T) { T Foo(T t){ return t; } }
Hi BCS. On this page: http://www.digitalmars.com/d/1.0/template
Jarrett Billingsley wrote:
> On Sun, Mar 15, 2009 at 5:55 PM, Jeremie Pelletier wrote:
>> I don't know if it's really a bug, but the package protection attribute
>> seems to have a different semantic in the current packages than in nested
>> packages.
>>
>> For example, say you have the module
Sun, 15 Mar 2009 13:50:07 -0700, Walter Bright wrote:
> Don wrote:
>> Something interesting about my proposal is that although it is motivated
>> by the purity problem, that's simply a rule for the compiler -- the
>> rules for programmers do not involve purity at all.(See my other post).
>> Do
On Sun, Mar 15, 2009 at 7:53 PM, Daniel Keep
wrote:
>
>
> Jarrett Billingsley wrote:
>> On Sun, Mar 15, 2009 at 5:55 PM, Jeremie Pelletier
>> wrote:
>>> I don't know if it's really a bug, but the package protection attribute
>>> seems to have a different semantic in the current packages than in
Tomas Lindquist Olsen Wrote:
> On Sun, Mar 15, 2009 at 10:46 AM, Walter Bright
> wrote:
> > ws wrote:
> >>
> >> Ah, finally I found the culprit!
> >> It is the unlocker.exe running in the background, and that crashes windbg
> >> running D windows app consistently when it exits. (does not affect t
There was a LiveJournal post asking about the D Programming language
about a week ago. Interesting to see a fairly neutral discussion on the
interest of the language. Wasn't sure if anyone would want to pitch in
some points.
http://patrick-compsci.livejournal.com/12857.html
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