vpp_lite: add cpu pinning support (VPP-467)

[vpp.git] / vpp / conf / startup.conf

diff --git a/vpp/conf/startup.conf b/vpp/conf/startup.conf
index 84a0264..bce0020 100644 (file)
--- a/vpp/conf/startup.conf
+++ b/vpp/conf/startup.conf
@@ -14,13 +14,30 @@ api-segment {
 }
 
 cpu {
+       ## In the VPP there is one main thread and optionally the user can create worker(s)
+       ## The main thread and worker thread(s) can be pinned to CPU core(s) manually or automatically
+
+       ## Manual pinning of thread(s) to CPU core(s)
+
        ## Set logical CPU core where main thread runs
        # main-core 1
 
        ## Set logical CPU core(s) where worker threads are running
-       ## by default there is no worker threads started
        # corelist-workers 2-3,18-19
 
+       ## Automatic pinning of thread(s) to CPU core(s)
+
+       ## Sets number of CPU core(s) to be skipped (1 ... N-1)
+       ## Skipped CPU core(s) are not used for pinning main thread and working thread(s).
+       ## The main thread is automatically pinned to the first available CPU core and worker(s)
+       ## are pinned to next free CPU core(s) after core assigned to main thread
+       # skip-cores 4
+
+       ## Specify a number of workers to be created
+       ## Workers are pinned to N consecutive CPU cores while skipping "skip-cores" CPU core(s)
+       ## and main thread's CPU core
+       # workers 2
+
        ## Set scheduling policy and priority of main and worker threads
 
        ## Scheduling policy options are: other (SCHED_OTHER), batch (SCHED_BATCH)