From: Xavier Leroy <Xavier.Leroy@inria.fr>
To: Michel Schinz <Michel.Schinz@epfl.ch>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Performance of threaded interpreter on hyper-threaded CPU
Date: Tue, 18 Apr 2006 10:33:48 +0200 [thread overview]
Message-ID: <4444A46C.5000102@inria.fr> (raw)
In-Reply-To: <m2psjfpavt.fsf@torre.local>
> When the ratio given in the last column is greater than 1, then
> threaded code is faster than the switch-based solution. As you can
> see, this is only true in my case for non-hyper-threaded
> architectures.
Which version(s) of gcc do you use for compiling the bytecode
interpreter? Is it the same version on all machines?
The reason I'm asking is that some versions of gcc are known to
generate poor code for threaded interpreters, e.g. gcc 3.2 generates
inferior code compared to gcc 2.95. For more info, google for
"Anton Ertl gcc".
- Xavier Leroy
next prev parent reply other threads:[~2006-04-18 8:33 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-18 8:04 Michel Schinz
2006-04-18 8:33 ` Xavier Leroy [this message]
2006-04-18 10:27 ` Michel Schinz
2006-04-18 11:40 ` [Caml-list] " Till Varoquaux
2006-04-18 11:59 ` Michel Schinz
2006-04-18 12:56 ` Stefan Monnier
2006-04-18 16:18 ` [Caml-list] " Xavier Leroy
2006-04-18 16:42 ` gang chen
2006-04-19 8:24 ` Michel Schinz
2006-04-25 22:52 ` [Caml-list] " Joaquin Cuenca Abela
2006-04-27 11:42 ` Joaquin Cuenca Abela
2006-04-18 8:34 ` [Caml-list] " Christophe TROESTLER
2006-04-18 8:46 ` Jonathan Roewen
2006-04-18 8:57 ` Christophe TROESTLER
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