From: Anders Fugmann <anders@fugmann.net>
To: William Le Ferrand <William.Le-Ferrand@polytechnique.edu>
Cc: caml users <caml-list@inria.fr>
Subject: Re: [Caml-list] Storing ocaml values outside ocaml's heap
Date: Thu, 08 Dec 2011 10:29:52 +0100 [thread overview]
Message-ID: <4EE08390.7090203@fugmann.net> (raw)
In-Reply-To: <CAGS5m-nYMnR13XFvJHzs=Z0y4qJJ7nOKpJfwrpnYOsSbG8rqMg@mail.gmail.com>
On 12/08/2011 09:56 AM, William Le Ferrand wrote:
> Hi Anders!
>
> How're you doing ?
>
> Thanks for the suggestion. We actually have a solution in production
> right now (www.besport.com <http://www.besport.com>) that relies on
> netshm. Unfortunately, the serialization / deserialization is killing
> the performance : about 200ms for a full request against 7ms for a
> simple Hashtbl lookup on our hardware.
200 ms seems too much - Nothing takes 200ms on modern hardware. not even
on AWS :-)
Maybe the system was swapping or some other noise polluted your
statistics. Which serialization format did you use? ocaml's standard
marshaling, or did your write your own?
> ocaml-everlasting did solve this performance bottleneck but we get
> unacceptable segmentation faults, and before debugging this library I'd
> rather learn about other approaches :)
What type of performance do you get with ocaml-everlasting?
Regards
Anders
next prev parent reply other threads:[~2011-12-08 9:30 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-08 4:35 William Le Ferrand
2011-12-08 6:04 ` Stéphane Glondu
2011-12-08 8:19 ` William Le Ferrand
2011-12-08 9:04 ` Anil Madhavapeddy
2011-12-08 9:07 ` William Le Ferrand
2011-12-08 11:03 ` oliver
2011-12-08 17:02 ` Goswin von Brederlow
2011-12-08 9:40 ` Gaius Hammond
2011-12-08 8:49 ` Anders Fugmann
2011-12-08 8:56 ` William Le Ferrand
2011-12-08 9:29 ` Anders Fugmann [this message]
2011-12-08 9:12 ` Gerd Stolpmann
2011-12-08 10:33 ` Goswin von Brederlow
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