Freeing a cpu for ftracing

1 files changed, 8 insertions, 1 deletions

diff --git a/litmus/Kconfig b/litmus/Kconfig
index d629a2843584..20610fdf9a54 100644
--- a/litmus/Kconfig
+++ b/litmus/Kconfig
@@ -83,8 +83,15 @@ config PLUGIN_MC_REDIRECT
          Allow processors to send work involving global state to the
          release-master cpu in order to avoid excess overheads during
          partitioned decisions.
-endmenu
 
+config FTRACE_CPU
+       int "CPU for Tracing"
+       depends on PLUGIN_MC
+       default -1
+       help
+         Keep one CPU free for the tasks which trace and flush
+         scheduling and overhead data.
+endmenu
 endmenu
 
 menu "Real-Time Synchronization"