Re: [PATCH 0/7] rcu: optimize RCU trace on the huge platform

From: Paul E. McKenney
Date: Fri Sep 28 2012 - 13:54:04 EST


On Thu, Sep 20, 2012 at 08:51:01AM +0800, Michael Wang wrote:
> This patch set optimize the RCU trace to make it perform better on the
> platform with thousands of cpus.
>
> The optimization including:
> -- the cpu info will be separated by each flavor of rcu.
> -- implement the 'cpu units sequence reading' to avoid losing data.
>
> Michael Wang (7):
> [PATCH 1/7] rcu: create directory for each flavor of rcu
> [PATCH 2/7] rcu: fundamental facility for 'cpu units sequence reading'
> [PATCH 3/7] rcu: optimize the 'rcudata' for RCU trace
> [PATCH 4/7] rcu: optimize the 'rcudata.csv' for RCU trace
> [PATCH 5/7] rcu: optimize the 'rcu_pending' for RCU trace
> [PATCH 6/7] rcu: replace the old interface with the new one
> [PATCH 7/7] rcu: remove the interface "rcudata.csv"
>
> Signed-off-by: Michael Wang <wangyun@xxxxxxxxxxxxxxxxxx>
> ---
> b/kernel/rcutree_trace.c | 8 +
> kernel/rcutree_trace.c | 368 ++++++++++++++++++++---------------------------
> 2 files changed, 170 insertions(+), 206 deletions(-)

Queued for 3.8, thank you Michael!

Thanx, Paul

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