lpar plugin: Document why comsumed ticks may be larger than entitled ticks.

diff --git a/src/lpar.c b/src/lpar.c
index 2f40691..113dff9 100644 (file)
--- a/src/lpar.c
+++ b/src/lpar.c
@@ -156,6 +156,8 @@ static int lpar_read_shared_partition (const perfstat_partition_total_t *data)
                idle_diff = idle - idle_old;
                consumed_ticks = user_diff + syst_diff + wait_diff + idle_diff;
 
+               /* "uncapped" partitions are allowed to consume more ticks than
+                * they are entitled to. */
                if (entitled_ticks >= consumed_ticks)
                        unav_diff = entitled_ticks - consumed_ticks;
                else