Re: [PATCH V3] x86, UV: BAU performance and error recovery

From: Cliff Wickman
Date: Mon May 31 2010 - 15:48:41 EST



On Fri, May 28, 2010 at 05:05:26PM -0700, Greg KH wrote:
> On Fri, May 28, 2010 at 06:36:23PM -0500, Cliff Wickman wrote:
> > /proc/sgi_uv/bau_tunables would be a read/write file to display and change
> > nine threshold and delay values for tuning the BAU driver.
> >
> > I like debugfs, except that a distro may not build the kernel with it
> > configured on. The tunables should be available as administrative
> > options on a customer kernel, not just as a development tool.
>
> All distros have debugfs turned on now, and mounted, due to the perf
> interface there, as well as a lot of other good debug information that
> is present.
>
> So you don't have to worry about that.

Good to hear. That makes the choice simple.
>
...
>
> So please, just put it in debugfs.
>
> thanks,
>
> greg k-h

Okay. I moved the file to debugfs, and will re-submit the patch
momentarily.

-Cliff
--
Cliff Wickman
SGI
cpw@xxxxxxx
(651) 683-3824
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