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From: Andi Kleen <andi@firstfloor.org>
To: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Andi Kleen <andi@firstfloor.org>,
	akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
	"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [PATCH] Scheduler Profiling - Use Immediate Values
Date: Wed, 12 Sep 2007 16:32:23 +0200	[thread overview]
Message-ID: <20070912143223.GB2287@one.firstfloor.org> (raw)
In-Reply-To: <20070912141947.GA7313@Krystal>

> The idea is not to hide the unlikely, but to leave the opportunity to
> make this primitive evolve in something that won't depend on a load
> immediate and only require patching of a jump, given the appropriate gcc
> support (yet to come).

If that ever happens the code can be still changed. But i don't think
it's a good idea to uglify the code for something that if it 
ever exists will be a long time away.

Besides if gcc supports it I assume the gcc support could 
also be written in a way that makes it possible to hide it inside
a standard if ()

-Andi

  reply	other threads:[~2007-09-12 14:32 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-06 20:05 [PATCH] Scheduler Profiling - Use Immediate Values Mathieu Desnoyers
2007-09-06 20:55 ` Randy Dunlap
2007-09-07 12:14   ` Mathieu Desnoyers
2007-09-08 16:12 ` Andi Kleen
2007-09-12 14:19   ` Mathieu Desnoyers
2007-09-12 14:32     ` Andi Kleen [this message]
  -- strict thread matches above, loose matches on Subject: below --
2007-12-06  2:14 Mathieu Desnoyers

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