From: Philippe Gerum <rpm@xenomai.org>
To: smannori@domain.hid
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] XenoPPC :-> 2.6.13.4-ipipe :)
Date: Sat, 15 Oct 2005 13:12:23 +0200 [thread overview]
Message-ID: <4350E417.7080809@domain.hid> (raw)
In-Reply-To: <34086.193.52.24.125.1129373726.squirrel@domain.hid>
smannori@domain.hid wrote:
> Hi:
>
> - Apple PowerBook 1.67
> - Mandriva Limited 2005 (Mandrake 10.2) for PPC
> - Linux 2.6.13.4
> - Adeos patch x ppc (32bit - G4) (www.adeos.org) (Thanks Philippe :) )
> - Xenomai: configured with NO FPU SUPPORT (Thanks Gilles :) )
>
> Everything works perfect (for the internal test). CPU pushed steady to 99%
> with glxgear (NO DRI, software emululation only by Mesa): 350 fps
>
> Max latency = 44 us
> Overrun = zero nil nada zip.
>
> I think that the save/restore functions of xenomai must be aware of the
> presence of Altivec. If I disable Altivec the X11 server (x.org) shipped
> with mandriva ppc does not start.
>
> This is a very good impruvement. If you use thread in the user space, the
> FPU support is not a must.
Still, FPU must be supported properly, user-space and kernel-space wise. But
that's good news that the I-pipe patch gives decent results right now.
Alex, could you kick the ass of Xeno (SVN head, 2.6.13-ipipe, FPU on, Altivec
off, pervasive RT support off + klatency then on + latency) over your platform
and let me know of the outcome, please.
--
Philippe.
prev parent reply other threads:[~2005-10-15 11:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-15 10:55 [Xenomai-help] XenoPPC :-> 2.6.13.4-ipipe :) smannori
2005-10-15 11:05 ` Gilles Chanteperdrix
2005-10-15 11:12 ` Philippe Gerum [this message]
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