diff options
Diffstat (limited to 'litmus/Kconfig')
-rw-r--r-- | litmus/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/litmus/Kconfig b/litmus/Kconfig index 651b66a77c65..e7376a165be3 100644 --- a/litmus/Kconfig +++ b/litmus/Kconfig | |||
@@ -52,6 +52,19 @@ config CPU_SCHED_BIAS | |||
52 | Only bias towards previously used CPU is currently implemented. In the | 52 | Only bias towards previously used CPU is currently implemented. In the |
53 | future: bias on CPU topology. | 53 | future: bias on CPU topology. |
54 | 54 | ||
55 | config DONT_PREEMPT_ON_TIE | ||
56 | bool "Don't preempt a task on priority tie." | ||
57 | default n | ||
58 | help | ||
59 | Don't preempt a scheduled task to schedule another if the two tasks | ||
60 | have equal priority. Preformance is improved through the reduction | ||
61 | of preemptions. Only tasks with periods that share a common factor | ||
62 | will likely see any gains. | ||
63 | |||
64 | WARNING: Schedulability analysis that depends upon specific | ||
65 | tie-breaking rules, such as tie-break on task-id/PID (the default | ||
66 | LITMUS behavior), may break. | ||
67 | |||
55 | endmenu | 68 | endmenu |
56 | 69 | ||
57 | menu "Real-Time Synchronization" | 70 | menu "Real-Time Synchronization" |