From: "Lennart Sorensen" <lsorense@csclub.uwaterloo.ca>
To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai] NVIDIA Drivers w/ Xenomai
Date: Tue, 22 Dec 2015 10:54:29 -0500 [thread overview]
Message-ID: <20151222155429.GS25177@csclub.uwaterloo.ca> (raw)
In-Reply-To: <20151222073037.GC29679@hermes.click-hack.org>
On Tue, Dec 22, 2015 at 08:30:37AM +0100, Gilles Chanteperdrix wrote:
> Last time I looked, NVIDIA drivers used some glue code to adapt to
> the particular kernel for which they were compiled. This glue made
> use of the standard macro local_irq_save/spin_lock_irqsave, etc...
> So, compiling the NVIDIA driver with an I-pipe kernel worked, and so
> did running Xenomai programs along side graphic applications. But
> that was a long time ago. In any case, running the latency test
> while your image processing program is running on the GPU should
> allow you to find whether the driver is generating large latencies.
OK, maybe it isn't as bad as I was led to believe in the past then.
I suppose one could hope there are no interrupt disable calls in the
nvidia binary blob directly.
--
Len Sorensen
next prev parent reply other threads:[~2015-12-22 15:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-22 0:22 [Xenomai] NVIDIA Drivers w/ Xenomai Eric Huang
2015-12-22 2:43 ` Lennart Sorensen
2015-12-22 7:30 ` Gilles Chanteperdrix
2015-12-22 15:54 ` Lennart Sorensen [this message]
2015-12-22 17:33 ` Jeff Webb
2015-12-23 12:48 ` Gilles Chanteperdrix
2015-12-22 7:37 ` Gilles Chanteperdrix
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20151222155429.GS25177@csclub.uwaterloo.ca \
--to=lsorense@csclub.uwaterloo.ca \
--cc=gilles.chanteperdrix@xenomai.org \
--cc=xenomai@xenomai.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.