Messages in this thread | | | From | "Uladzislau Rezki (Sony)" <> | Subject | [PATCH 0/3] reduce latency of synchronize_rcu() | Date | Wed, 25 Oct 2023 16:09:12 +0200 |
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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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