--- a/src/formats/writelog.rs	Sun Feb 07 18:50:49 2016 +0000
+++ b/src/formats/writelog.rs	Sun Feb 07 19:01:53 2016 +0000
@@ -153,7 +153,7 @@
         fs::OpenOptions::new()
             .read(true)
             .open(file)
-            .map(move |f| WriteLogReader::new(Box::new(f)))
+            .map(move |f| WriteLogReader::new(Box::new(io::BufReader::with_capacity(1024 * 1024, f))))
     }
 
     /// Opens all files from a directory which end in suffix, and chains them together.
@@ -176,7 +176,7 @@
                         println!("Error opening {:?}: {}", name, e);
                         continue;
                     }
-                    Ok(f) => reader = Box::new(reader.chain(f)),
+                    Ok(f) => reader = Box::new(reader.chain(io::BufReader::with_capacity(1024 * 1024, f))),
                 }
             }
         }