Messages in this thread | | | Date | Sat, 8 Nov 2014 16:51:24 -0800 | From | "Paul E. McKenney" <> | Subject | Re: [PATCH] ACPI/osl: speedup grace period in acpi_os_map_cleanup |
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On Sun, Nov 09, 2014 at 03:24:34AM +0400, Alexander Monakov wrote: > On Sun, Nov 9, 2014 at 1:13 AM, Paul E. McKenney > <paulmck@linux.vnet.ibm.com> wrote: > > > > Did anyone try replacing the synchronize_rcu() with > > synchronize_rcu_expedited()? That should provide substantial speedups > > over synchronize_rcu(). > > I've just briefly tested it on my laptop, and it also helps to avoid the issue.
OK, good.
In the past, synchronize_rcu_expedited() has been a bit unfriendly to battery-powered platforms and to real-time and HPC workloads, but recent changes for the most part fix this.
Thanx, Paul
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