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Subject[PATCH 0/3] reduce latency of synchronize_rcu()
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Here is a small series that tends to reduce a waiting time of
synchronize_rcu() call. Please note, this is only limited to
a "normal" version.

As for performance figures, i used real test cases and a synthetic.
For example
- camera app launch time on our Android device is reduced by 9-13 percent;
- loading 100 kernel modules also get improved by 10-12 percent;
- synthetic gives 30 and higher percentage of boost.

Uladzislau Rezki (Sony) (3):
rcu: Reduce synchronize_rcu() waiting time
rcu: Add a trace event for synchronize_rcu_normal()
doc: Add rcutree.rcu_normal_wake_from_gp to kernel-parameters.txt

.../admin-guide/kernel-parameters.txt | 12 ++
include/trace/events/rcu.h | 27 ++++
kernel/rcu/tree.c | 152 +++++++++++++++++-
kernel/rcu/tree_exp.h | 2 +-
4 files changed, 191 insertions(+), 2 deletions(-)

--
2.30.2

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