Re: [PATCH 0/4] [GIT PULL] memory saving ring buffer fortip/tracing/ftrace

[Pierre Ossman]

On Wed, 11 Mar 2009 22:37:20 -0400
Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:

> Ingo,
> 
> This patch series implements a better memory management by the
> ring buffer. It only allocates the buffers for the online CPUS, as well
> as keeps the buffers to a minimum size until they are used.
> 
> Please pull the latest tip/tracing/ftrace tree, which can be found at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace.git
> tip/tracing/ftrace
> 
> 
> Steven Rostedt (4):
>       tracing: keep ring buffer to minimum size till used
>       tracing: expand the ring buffers when an event is activated
>       tracing: fix trace_wait to know to wait on all cpus or just one
>       ring-buffer: only allocate buffers for online cpus
> 

How difficult is it to apply this to 2.6.27? Fedora is still on that
kernel and it would be nice if I could get my memory back on a
distribution kernel. :)

Rgds
-- 
     -- Pierre Ossman

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