Re: [PATCH] v3 rudimentary tracing for Classic RCU

[Paul E. McKenney]

On Wed, Oct 29, 2008 at 09:31:39AM +0800, Lai Jiangshan wrote:
> Paul E. McKenney wrote:
> 
> > Ported to 2.6.27 to ease testing, and fixed up the formatting a bit.
> > I remember quickly scanning through one-line-per-CPU data to find
> > problems with rcutree.c, but the expanded names are quite nice -- I
> > had to brutally abbreviate to fit each CPU on a single line.
> > And I agree that seqfile does work nicely for this.
> > 
> > I am strongly tempted to suggest CSV format output with headers to
> > allow the data to be pulled into gnumeric or oocalc -- this would
> > make handling large numbers of CPUs much easier.  (Quickly donning
> > the asbestos suit with titanium pinstripes...)
> 
> Hi, Paul,
> 	My patch is like an example, you do not need keep the
> codes that I have wrote. you can rewrite all of it. these files
> are only accessed by RCU guys, not users. and some file in /proc
> is very simple but easy to be read: /proc/stat, /proc/loadavg.

Hello, Jiangshan,

Good point -- I do very much appreciate the seqfile tutorial!!!

						Thanx, Paul
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