what = percentile.replace("_", ".") + "th percentile"
configinfo = \
-"""graph_title Tahoe Server '%(operation)s' Latency
+"""graph_title Tahoe Server '%(operation)s' Latency (%(what)s)
graph_vlabel seconds
graph_category tahoe
graph_info This graph shows how long '%(operation)s' operations took on the storage server, the %(what)s delay between message receipt and response generation, calculated over the last thousand operations.