From: "David S. Miller" <davem@redhat.com>
To: levon@movementarian.org
Cc: weigand@immd1.informatik.uni-erlangen.de, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] [8/7] oprofile - dcookies need to use u32
Date: Wed, 16 Oct 2002 17:55:15 -0700 (PDT) [thread overview]
Message-ID: <20021016.175515.21904896.davem@redhat.com> (raw)
In-Reply-To: <20021017005728.GA8267@compsoc.man.ac.uk>
From: John Levon <levon@movementarian.org>
Date: Thu, 17 Oct 2002 01:57:28 +0100
The oprofile event buffer is unsigned long [], and stores cookie values.
Surely that would require us to use u64 there too, doubling the buffer
sizes on 32-bit machines ?
I suppose we could do so magic to spread the cookie value across two
buffer entries if necessary, but that's ugly...
True.
What if you could query the cookie size at runtime?
Would that help?
Really, if you make it long it's going to be impossible
to support this in 32/64 environments (ppc/sparc/mips/x86_64/
ia64/etc.)
next prev parent reply other threads:[~2002-10-17 0:57 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-16 1:56 [PATCH] [8/7] oprofile - dcookies need to use u32 Ulrich Weigand
2002-10-16 2:00 ` David S. Miller
2002-10-16 16:40 ` John Levon
2002-10-16 18:29 ` Jeff Garzik
2002-10-16 21:38 ` David S. Miller
2002-10-17 0:57 ` John Levon
2002-10-17 0:55 ` David S. Miller [this message]
2002-10-17 1:16 ` John Levon
2002-10-17 1:12 ` David S. Miller
2002-10-19 0:26 ` John Levon
2002-10-19 0:23 ` David S. Miller
2002-10-19 0:34 ` John Levon
2002-10-19 0:31 ` David S. Miller
2002-10-19 0:40 ` John Levon
2002-10-19 0:35 ` David S. Miller
2002-11-01 4:33 ` John Levon
2002-11-01 10:27 ` David S. Miller
-- strict thread matches above, loose matches on Subject: below --
2002-10-15 22:32 [PATCH] [2/7] oprofile - dcookies John Levon
2002-10-15 23:37 ` David S. Miller
2002-10-16 0:06 ` [PATCH] [8/7] oprofile - dcookies need to use u32 John Levon
2002-10-16 0:01 ` David S. Miller
2002-10-16 1:33 ` Linus Torvalds
2002-10-16 1:35 ` John Levon
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