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From: Ingo Molnar <mingo@elte.hu>
To: Alok Kataria <akataria@vmware.com>
Cc: Arjan van de Ven <arjan@infradead.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	LKML <linux-kernel@vger.kernel.org>,
	Daniel Hecht <dhecht@vmware.com>, Tim Mann <mann@vmware.com>,
	Zach Amsden <zach@vmware.com>, Sahil Rihan <srihan@vmware.com>
Subject: Re: [RFC PATCH] x86:Use cpu_khz for loops_per_jiffy calculation
Date: Tue, 24 Jun 2008 01:47:28 +0200	[thread overview]
Message-ID: <20080623234728.GA17297@elte.hu> (raw)
In-Reply-To: <1214264070.3882.22.camel@promb-2n-dhcp368.eng.vmware.com>


* Alok Kataria <akataria@vmware.com> wrote:

> > but there's another problem as well: why are generic files 
> > (init/calibrate.c and include/linux/delay.h) using something that is 
> > named in an x86-specific way - lpj_tsc ? (TSC is an x86 concept)
> 
> calibrate_delay_direct was using some variables with "tsc" as the 
> prefix (tsc_rate_min/max) ...so i thought of using lpj_tsc. And also 
> IMO, lpj_tsc explains how is this variable initialized. But thinking 
> about it, maybe we should rename it to "lpj_timer" ?

ok. But instead of 'lpj_timer' i'd suggest to use something like 
'lpj_fine' - as this really is about finegrained measurements.

I'd suggest a delta patch against tip/master that renames all those 
tsc_* variables to fine_*. So tsc_rate_min would become fine_rate_min, 
etc.

	Ingo

  reply	other threads:[~2008-06-23 23:47 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-04  0:41 [RFC PATCH] x86:Use cpu_khz for loops_per_jiffy calculation Alok Kataria
2008-06-04  1:20 ` Arjan van de Ven
2008-06-04  4:01   ` Alok kataria
2008-06-04 13:16     ` Arjan van de Ven
2008-06-05 18:37       ` Alok Kataria
2008-06-20  1:22       ` Alok Kataria
2008-06-20 11:39         ` Ingo Molnar
2008-06-20 22:06           ` Alok Kataria
2008-06-23 20:54             ` Ingo Molnar
2008-06-23 23:21             ` Ingo Molnar
2008-06-23 23:34               ` Alok Kataria
2008-06-23 23:47                 ` Ingo Molnar [this message]
2008-06-24  1:21                   ` Alok Kataria
2008-06-24 11:54                     ` Ingo Molnar
2008-06-24 17:57             ` Pavel Machek
2008-06-26 17:20               ` Alok Kataria
2008-06-26 17:35                 ` Pavel Machek
2008-06-26 18:10                   ` Alok Kataria
2008-06-26 22:16                     ` Pavel Machek
2008-06-26 23:10                       ` Alok Kataria
2008-06-27  8:12                         ` Pavel Machek
2008-06-04 14:17 ` Pavel Machek
2008-06-09 13:11 ` Ingo Molnar
2008-06-09 17:55   ` Alok Kataria

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