The shootout site has benchmarks comparing different languages. It
includes C# Mono vs Java but not C# .NET vs Java. So I went through
all the benchmark on the site ... http://kingrazi.blogspot.com/2008/05...enchmarks.html
Just to keep the post on topic for my friends at comp.lang.c++, how do
I play default windows sounds with C++?
Jun 27 '08
318  10952 
On Tue, 03 Jun 2008 19:37:57 +0100, Jon Harrop <jo*@ffconsulta ncy.com>
wrote:
>But still 2x slower than everything else and now 2x more bloated as well:
The FastMath class can be separated and used instead of java's Math in
all cases. The bloat is ZERO.
Razii wrote:
On Tue, 03 Jun 2008 19:48:16 +0100, Jon Harrop <jo*@ffconsulta ncy.com>
wrote:
>>Yes. Mono is extremely slow. Almost as slow as Java on this benchmark. As
we have seen, .NET is much faster...
That was a typo. I don't have Mono. I get that with .NET.
Java is 2x slower than .NET on my AMD64 for this benchmark. What CPU are you
using?
--
Dr Jon D Harrop, Flying Frog Consultancy http://www.ffconsultancy.com/products/?u
Razii wrote:
On Tue, 03 Jun 2008 19:37:57 +0100, Jon Harrop <jo*@ffconsulta ncy.com>
wrote:
>>But still 2x slower than everything else and now 2x more bloated as well:
The FastMath class can be separated and used instead of java's Math in
all cases. The bloat is ZERO.
So having to write your own basic trig functions in Java so that you can be
only 2x slower than other languages doesn't bother you?
--
Dr Jon D Harrop, Flying Frog Consultancy http://www.ffconsultancy.com/products/?u
On Tue, 3 Jun 2008 20:27:19 +0100, Jon Skeet [C# MVP]
<sk***@pobox.co mwrote:
>That looks very much like Unix output rather than Windows. Are you
running under cygwin or something similar?
Yes, I am running cygwin.
On Tue, 03 Jun 2008 20:03:49 +0100, Jon Harrop <jo*@ffconsulta ncy.com>
wrote:
>You said ".NET is twice slower in four benchmarks: binarytrees, mandelbrot,
regexdna, sumcol.". I have already corrected two of your results (mandelbrot
and regexdna) and provided two more counter examples where .NET is >2x
faster than Java and explained why binarytrees is flawed.
Yes, you did correct two of them. I added recursive to the list, so
there are 3 more to go.
With FastMath, C# is not much faster in partialsums on my computer.
You haven't posted the other prime benchmark yet so I can't comment on
that.
On Tue, 3 Jun 2008 20:23:08 +0100, Jon Skeet [C# MVP]
<sk***@pobox.co mwrote:
>The mandelbrot one. Look back in the thread from where I first talked
about IO, and you'll see it's the last one referenced.
Yes, that was fixed by Harpo a while ago.
>Which benchmark are you talking about now? sum-file uses BufferedReader
but not StreamTokenizer as far as I can see.
I suspect System.in is already buffered by default.
>1) File IO
2) Conversion from binary to text
3) Splitting a stream of textual data into lines
4) Parsing text into integers
5) Integer addition
6) Writing the result to the console
(1), (2), (4), (5), (6) ?
Razii <kl*****@mail.c omwrote:
That looks very much like Unix output rather than Windows. Are you
running under cygwin or something similar?
Yes, I am running cygwin.
Has it occurred to you that that may have an effect on the results?
The benchmarks would be *much* better in my view if each benchmark
started up a single process and ran with it for a significant amount of
time. After all, that's far more realistic in terms of how almost all
software is actually run in the real world.
--
Jon Skeet - <sk***@pobox.co m>
Web site: http://www.pobox.com/~skeet
Blog: http://www.msmvps.com/jon.skeet
C# in Depth: http://csharpindepth.com
Razii <kl*****@mail.c omwrote:
The mandelbrot one. Look back in the thread from where I first talked
about IO, and you'll see it's the last one referenced.
Yes, that was fixed by Harpo a while ago.
And yet you seem to be completely ignoring my point: a shootout which
has had such a trivial but significant flaw for a significant time is
suspect in its methodology. (Heck, the measurement style is dodgy to
start with. Including the startup cost in the test is pretty crazy.)
Which benchmark are you talking about now? sum-file uses BufferedReader
but not StreamTokenizer as far as I can see.
I suspect System.in is already buffered by default.
In what way does your sentence relate to my two?
1) File IO
2) Conversion from binary to text
3) Splitting a stream of textual data into lines
4) Parsing text into integers
5) Integer addition
6) Writing the result to the console
(1), (2), (4), (5), (6) ?
What is your list of numbers meant to signify?
--
Jon Skeet - <sk***@pobox.co m>
Web site: http://www.pobox.com/~skeet
Blog: http://www.msmvps.com/jon.skeet
C# in Depth: http://csharpindepth.com
Starting new thread, since that thread got too large (same applies to
C++).
On Tue, 03 Jun 2008 20:07:00 +0100, Jon Harrop <jo*@ffconsulta ncy.com>
wrote:
>So having to write your own basic trig functions in Java so that you can be
only 2x slower than other languages doesn't bother you?
It's not 2x slower with my trig function on my computer.
On the other hand, C# results are not accurate for trig functions.
using System;
using System.IO;
class Test
{
static void Main(){
Console.WriteLi ne(Math.Sin (1e15));
}
}
The answer I get from C# is: 0.8582721324763 73
with Java I get 0.8582727931702 359
Checking the answer with maple, I get
0.8582727931702 358355238863908 484066466002034
How are you going to fix C# in this case?
Does it bother you that C# gave wrong answer? This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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