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| author | Stephen Rothwell <sfr@canb.auug.org.au> | 2017-02-17 12:55:52 +1100 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2017-02-17 12:55:56 +1100 |
| commit | 2bf88e1cb7b556a34f750e3dff95b03e8ae83606 (patch) | |
| tree | a4d1d02b35b33994322ad917a11e2527891ec1bd /Documentation/scheduler/sched-rt-group.txt | |
| parent | 4923ffc1ba3a1a8fe30418aff905194dee483c15 (diff) | |
| parent | 1098ea741fc4168264185b6782135d029dce435c (diff) | |
Merge remote-tracking branch 'tip/auto-latest'
Diffstat (limited to 'Documentation/scheduler/sched-rt-group.txt')
| -rw-r--r-- | Documentation/scheduler/sched-rt-group.txt | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/scheduler/sched-rt-group.txt b/Documentation/scheduler/sched-rt-group.txt index a03f0d944fe6..d8fce3e78457 100644 --- a/Documentation/scheduler/sched-rt-group.txt +++ b/Documentation/scheduler/sched-rt-group.txt @@ -158,11 +158,11 @@ as its prone to starvation without deadline scheduling. Consider two sibling groups A and B; both have 50% bandwidth, but A's period is twice the length of B's. -* group A: period=100000us, runtime=10000us - - this runs for 0.01s once every 0.1s +* group A: period=100000us, runtime=50000us + - this runs for 0.05s once every 0.1s -* group B: period= 50000us, runtime=10000us - - this runs for 0.01s twice every 0.1s (or once every 0.05 sec). +* group B: period= 50000us, runtime=25000us + - this runs for 0.025s twice every 0.1s (or once every 0.05 sec). This means that currently a while (1) loop in A will run for the full period of B and can starve B's tasks (assuming they are of lower priority) for a whole |