From: tmoran@acm.org
Subject: Gnat 3.15p & Windows & Hyperthreading Q
Date: Fri, 25 Mar 2005 18:28:23 -0600
Date: 2005-03-25T18:28:23-06:00 [thread overview]
Message-ID: <1IOdnWpX0_s6MdnfRVn-3A@comcast.com> (raw)
I'm told that a multitask program compiled with Gnat 3.15p and run
under Windows XP Pro on a hyperthreaded machine, runs in the same total
time as the same program using a single task. OTOH, when compiled with
GNAT 5.02a1 and run on a dual-processor 400 MHz Celeron running Mandrake
Linux 8.2, it runs about 50% faster with two rather than one tasks.
Is the problem "hyperthreading", Windows, or Gnat 3.15p?
next reply other threads:[~2005-03-26 0:28 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-26 0:28 tmoran [this message]
2005-03-26 4:45 ` Gnat 3.15p & Windows & Hyperthreading Q Steve
2005-03-26 9:41 ` Pascal Obry
2005-03-26 13:53 ` Marin David Condic
2005-03-26 18:36 ` tmoran
2005-03-28 13:16 ` Marin David Condic
2005-03-27 11:27 ` Simon Wright
2005-03-29 18:33 ` Wiljan Derks
2005-03-30 8:48 ` Adrien Plisson
2005-04-01 7:09 ` tmoran
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