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| author | Luca Abeni <luca.abeni@santannapisa.it> | 2017-05-18 23:13:29 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-06-08 11:31:49 +0300 |
| commit | 209a0cbda7a01d2ea32a8b631d35e873bee498e9 (patch) | |
| tree | 68e22c41537d48bb1d1f26e5e26c59f7a4bb2013 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | e36d8677bfa55054e4194ec3683189b882a538f6 (diff) | |
| download | linux-209a0cbda7a01d2ea32a8b631d35e873bee498e9.tar.xz | |
sched/deadline: Improve the tracking of active utilization
This patch implements a more theoretically sound algorithm for
tracking active utilization: instead of decreasing it when a
task blocks, use a timer (the "inactive timer", named after the
"Inactive" task state of the GRUB algorithm) to decrease the
active utilization at the so called "0-lag time".
Tested-by: Claudio Scordino <claudio@evidence.eu.com>
Tested-by: Daniel Bristot de Oliveira <bristot@redhat.com>
Signed-off-by: Luca Abeni <luca.abeni@santannapisa.it>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tommaso Cucinotta <tommaso.cucinotta@sssup.it>
Link: http://lkml.kernel.org/r/1495138417-6203-3-git-send-email-luca.abeni@santannapisa.it
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions