[mythtv-users] PUNDIT High-CPU watching TV - Fixed
rozman at fri.uni-lj.si
Sat Mar 20 03:48:44 EST 2004
----- Original Message -----
From: "Paul Volkaerts" <paul.volkaerts at lineone.net>
To: "Discussion about mythtv" <mythtv-users at mythtv.org>
Sent: Wednesday, February 18, 2004 12:25 AM
Subject: RE: [mythtv-users] PUNDIT High-CPU watching TV - Fixed
> Attached. I have quite a good CPU (P4 2.6G with 512M memory). Its also
> worth tweaking some of the BIOS settings for shared memory size etc, that
> made a small but noticeable difference to the performance. Two tools
> checking out are "x11perf -shmput500" and "xvtest".
> I now get x11perf showing 262 repetitions/second and xvtest showing 2100
I'm having problems with high cpu when using xv for playback. I'm under Suse
9.0, have upgraded to xfree 4.4 tried every single advice on net but no
success. Could you please be so kind and explain yours BIOS settings - this
is the last cause of my problems I can think of...
I have quite good x11perf result but lousy xvtest (200 FPS). All logs and
xvinfo shows no apparent warnings. MTRR is enabled by default under Suse -
so I'm running out of options here....
> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org
> [mailto:mythtv-users-bounces at mythtv.org]On Behalf Of hpoley at dds.nl
> Sent: 15 February 2004 21:03
> To: Discussion about mythtv
> Subject: RE: [mythtv-users] PUNDIT High-CPU watching TV - Fixed
> Citeren Paul Volkaerts <paul.volkaerts at lineone.net>:
> > From: mythtv-users-bounces at mythtv.org
> >> Paul Volkaerts wrote:
> >>> Just for reference, I fixed the high-CPU problem; or should I say
> >>> Winischhofer did!
> >>> Enabling MTRR in the kernel took the CPU used by XFree86 down from 50%
> >>> less than 1% whilst watching recordings.
> >> What is MTRR and how did you enable it?
> > Enable it my building the kernel with the option in.
> > So: run make menuconfig to configure your linux kernel and under
> > Type" there is an option called MTRR (Memory Type Range Register); which
> > defaults to OFF at least on Debian installs.
> > Hitting HELP here defines MTRR as ... "allows bus transfers to be
> > into a large transfer before bursting over the PCI/AGP bus".
> I've got MTRRs enabled. So could you give some more hints? I've also got a
> Pundit, but X runs at 7-8% (@ 720x576). Which seemed good to me, but now I
> it might explain the slight playback problems I have.
> Maybe you could mail your XF86Config and kernel .config?
> Henk Poley <><
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> mythtv-users at mythtv.org
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