diff options
| -rw-r--r-- | nova/scheduler/least_cost.py | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/nova/scheduler/least_cost.py b/nova/scheduler/least_cost.py index 71db730cb..bccdd0a4f 100644 --- a/nova/scheduler/least_cost.py +++ b/nova/scheduler/least_cost.py @@ -79,8 +79,13 @@ def noop_cost_fn(host_state, weighing_properties): def compute_fill_first_cost_fn(host_state, weighing_properties): - """More free ram = higher weight. So servers will less free - ram will be preferred.""" + """More free ram = higher weight. So servers with less free + ram will be preferred. + + Note: the weight for this function in default configuration + is -1.0. With a -1.0 this function runs in reverse, so systems + with the most free memory will be preferred. + """ return host_state.free_ram_mb |