I think we can derive quite a few insights from here:

http://lh3lh3.users.sourceforge.net/udb.shtml


Andrei

On Tuesday, 10 April 2012 at 01:34:30 UTC, Andrei Alexandrescu wrote:
> I think we can derive quite a few insights from here:
>
> http://lh3lh3.users.sourceforge.net/udb.shtml
>
>
> Andrei

You probably already came accross this benchmark by John-Mark Gurney
http://attractivechaos.wordpress.com/2008/08/28/comparison-of-hash-table-libraries/
who also happens to be the author of these C libraries:
http://attractivechaos.awardspace.com/
(from which Heng Li derived his own optimized implementation)
and a fan of D.

On another matter, Heng Li publishes this regex benchmark:
http://lh3lh3.users.sourceforge.net/reb.shtml
Surprisingly (or maybe not), egrep is faster than everything else by a very large margin.

On 10.04.2012 7:14, SomeDude wrote:
> On Tuesday, 10 April 2012 at 01:34:30 UTC, Andrei Alexandrescu wrote:
>> I think we can derive quite a few insights from here:
>>
>> http://lh3lh3.users.sourceforge.net/udb.shtml
>>
>>
>> Andrei
>
> You probably already came accross this benchmark by John-Mark Gurney
> http://attractivechaos.wordpress.com/2008/08/28/comparison-of-hash-table-libraries/
>
> who also happens to be the author of these C libraries:
> http://attractivechaos.awardspace.com/
> (from which Heng Li derived his own optimized implementation)
> and a fan of D.
>


> On another matter, Heng Li publishes this regex benchmark:
> http://lh3lh3.users.sourceforge.net/reb.shtml
> Surprisingly (or maybe not), egrep is faster than everything else by a
> very large margin.

>Another possible reason that egrep is fast may be because it does not >keep track of grouping.

Being in the know I tell you that fogetting about groups lets you to make "bare bones" automation which is an order of magnituide faster then.

BTW it's been years since I see this benchmark. Still no D listed tough (is he a fan of D?). For one thing the date pattern is exceptionally fast with new std.regex.

-- 
Dmitry Olshansky

Le 10/04/2012 09:07, Dmitry Olshansky a écrit :
> On 10.04.2012 7:14, SomeDude wrote:
>> On Tuesday, 10 April 2012 at 01:34:30 UTC, Andrei Alexandrescu wrote:
>>> I think we can derive quite a few insights from here:
>>>
>>> http://lh3lh3.users.sourceforge.net/udb.shtml
>>>
>>>
>>> Andrei
>>
>> You probably already came accross this benchmark by John-Mark Gurney http://attractivechaos.wordpress.com/2008/08/28/comparison-of-hash-table-libraries/
>>
>>
>> who also happens to be the author of these C libraries:
>> http://attractivechaos.awardspace.com/
>> (from which Heng Li derived his own optimized implementation)
>> and a fan of D.
>>
> 
> 
>> On another matter, Heng Li publishes this regex benchmark:
>> http://lh3lh3.users.sourceforge.net/reb.shtml
>> Surprisingly (or maybe not), egrep is faster than everything else by a
>> very large margin.
> 
>>Another possible reason that egrep is fast may be because it does not keep track of grouping.
> 
> Being in the know I tell you that fogetting about groups lets you to make "bare bones" automation which is an order of magnituide faster then.
> 
> BTW it's been years since I see this benchmark. Still no D listed tough (is he a fan of D?). For one thing the date pattern is exceptionally fast with new std.regex.
> 
Given he has been following the language for years, I tend to think so http://attractivechaos.wordpress.com/

(and he wrote somewhere that D was the language he was most interested in)