Merge pull request #12 from marshallpierce/smaller-types

Reduce memory footprint per histogram.

Author: jonhoo

Cargo.toml

@@ -27,6 +27,9 @@ benchmark = [] # for crates.io publication
 num = "0.1"
 #criterion = { git = "https://github.com/japaric/criterion.rs.git", optional = true }
 
+[dev-dependencies]
+rand = "0.3.15"
+
 [lib]
 path = "src/lib.rs"
 

benchmarks/busy.rs

@@ -2,7 +2,7 @@ extern crate hdrsample;
 use hdrsample::Histogram;
 
 const TRACKABLE_MAX: u64 = 3600 * 1000 * 1000; // e.g. for 1 hr in usec units
-const SIGFIG: u32 = 3;
+const SIGFIG: u8 = 3;
 const TEST_VALUE_LEVEL: u64 = 12340;
 
 fn main() {