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From: kennethesills@gmail.com
Subject: Re: Optimizing Ada
Date: Wed, 2 Oct 2013 07:43:15 -0700 (PDT)
Date: 2013-10-02T07:43:15-07:00	[thread overview]
Message-ID: <f26a32d5-bfec-44b7-99ae-f586ba61f133@googlegroups.com> (raw)
In-Reply-To: <lyvc1gta6l.fsf@pushface.org>

> I wonder whether your performance problem is caused by using a function?
> The internal Word_Map is, I think, going to be copied to the destination
> and then finalized. Could you use an out parameter? (remembering to 
> clear it before adding ne new content).

That was exactly it, actually. As per Jacob's suggestion - I used an extended return and it dropped down to 2900ns.

Another suggestion was that Rust uses a faster hash function (SipHash 2-4). 

  reply	other threads:[~2013-10-02 14:43 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-02  2:58 Optimizing Ada kennethesills
2013-10-02  3:47 ` Jeffrey Carter
2013-10-02  3:53   ` kennethesills
2013-10-02  4:13     ` Jeffrey Carter
2013-10-02  4:24       ` kennethesills
2013-10-02  8:11         ` Jacob Sparre Andersen
2013-10-02 10:32           ` Marius Amado-Alves
2013-10-02 14:24           ` kennethesills
2013-10-02 16:41         ` Jeffrey Carter
2013-10-02 18:58       ` John B. Matthews
2013-10-02  7:01 ` Egil H H
2013-10-02  7:16 ` Simon Wright
2013-10-02 14:43   ` kennethesills [this message]
2013-10-02 10:24 ` Marius Amado-Alves
2013-10-02 14:29   ` kennethesills
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