# Bucket 0.5 1.0 # -> bucket-latency-foo-0.5_1
# Bucket 1.0 2.0 # -> bucket-latency-foo-1_2
# Bucket 2.0 0 # -> bucket-latency-foo-2_inf
# Bucket 0.5 1.0 # -> bucket-latency-foo-0.5_1
# Bucket 1.0 2.0 # -> bucket-latency-foo-1_2
# Bucket 2.0 0 # -> bucket-latency-foo-2_inf