examples/vm_power: allow managing idle cores

[dpdk.git] / examples / vm_power_manager / oob_monitor_x86.c

diff --git a/examples/vm_power_manager/oob_monitor_x86.c b/examples/vm_power_manager/oob_monitor_x86.c
index 3c51447..a5b1c16 100644 (file)
--- a/examples/vm_power_manager/oob_monitor_x86.c
+++ b/examples/vm_power_manager/oob_monitor_x86.c
@@ -96,12 +96,12 @@ apply_policy(int core)
        g_branch_misses = miss_diff;
 
        if (hits_diff < (INTERVAL*100)) {
-               /* Likely no workload running on this core. Skip. */
-               return -1.0;
+               /* Likely no workload running on this core. */
+               ratio = 0.0;
+       } else {
+               ratio = (float)miss_diff * (float)100 / (float)hits_diff;
        }
 
-       ratio = (float)miss_diff * (float)100 / (float)hits_diff;
-
        /*
         * Store the last few directions that the ratio indicates
         * we should take. If there's on 'up', then we scale up