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| author |   Paul E. McKenney <paulmck@kernel.org> | 2022-08-05 15:42:25 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2022-08-31 05:09:22 -0700 |
| commit | d761de8a7dcef8e8e9e20a543f85a2c079ae3d0d (patch) | |
| tree | e2016c6787384500b8f3520c78782dbc3d5b6230 /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | rcutorture: Adjust rcu_poll_need_2gp() for rcu_gp_oldstate field removal (diff) | |
| download | linux-dev-d761de8a7dcef8e8e9e20a543f85a2c079ae3d0d.tar.xz linux-dev-d761de8a7dcef8e8e9e20a543f85a2c079ae3d0d.zip | |
rcu: Make synchronize_rcu() fastpath update only boot-CPU counters
Large systems can have hundreds of rcu_node structures, and updating
counters in each of them might slow down booting. This commit therefore
updates only the counters in those rcu_node structures corresponding
to the boot CPU, up to and including the root rcu_node structure.
The counters for the remaining rcu_node structures are updated by the
rcu_scheduler_starting() function, which executes just before the first
non-boot kthread is spawned.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions