From: Dan Malek <dan@mvista.com>
To: Iain Sandoe <iain@sandoe.co.uk>
Cc: Gabriel Paubert <paubert@iram.es>,
linuxppc-dev@lists.linuxppc.org, Samuel Rydh <samuel@ibrium.se>
Subject: Re: [PATCH] gettimeofday stability
Date: Mon, 16 Apr 2001 18:19:39 -0400 [thread overview]
Message-ID: <3ADB6FFB.C40B3574@mvista.com> (raw)
In-Reply-To: 20010416160035.777CF2F0D3@apollo.valhalla.net
Iain Sandoe wrote:
>
> > I still object strongly to anything touching the timebase, however.
>
> I'd prefer if it wasn't touched too...
As I recall, "touching" the TB simply means reading it and computing
elapsed ticks since the last read. I don't remember anything changing
the value in the timebase registers (which isn't possible outside
of the kernel).
I regularly use the TB for user application event timing, and
haven't seen anything abnormal (other than the code I was testing :-).
-- Dan
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2001-04-16 22:19 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-04-16 16:00 [PATCH] gettimeofday stability Iain Sandoe
2001-04-16 22:19 ` Dan Malek [this message]
-- strict thread matches above, loose matches on Subject: below --
2001-04-11 19:00 Samuel Rydh
2001-04-11 19:42 ` Gabriel Paubert
2001-04-11 20:09 ` Karim Yaghmour
2001-04-11 21:31 ` Benjamin Herrenschmidt
2001-04-12 18:09 ` Gabriel Paubert
2001-04-14 6:49 ` Karim Yaghmour
2001-04-16 11:56 ` Gabriel Paubert
2001-04-16 13:25 ` Benjamin Herrenschmidt
2001-04-16 12:53 ` Gabriel Paubert
2001-04-17 11:22 ` Gabriel Paubert
2001-04-11 23:07 ` Samuel Rydh
2001-04-16 11:25 ` Gabriel Paubert
2001-04-19 20:43 ` Samuel Rydh
2001-04-21 15:21 ` Gabriel Paubert
2001-04-21 18:16 ` Samuel Rydh
2001-04-21 19:37 ` Gabriel Paubert
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