Tweak memory maps on darwin.

Namely, don't automatically pick memory maps on darwin, ever. They appear slower than standard read calls. Closes BurntSushi#36.
amsharma91 · Sep 20, 2016 · e0077d4 · e0077d4
1 parent 7687e40
commit e0077d4
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/args.rs b/src/args.rs
@@ -292,6 +292,9 @@ impl RawArgs {
             } else if cfg!(windows) {
                 // On Windows, memory maps appear faster than read calls. Neat.
                 true
+            } else if cfg!(darwin) {
+                // On Mac, memory maps appear to suck. Neat.
+                false
             } else {
                 // If we're only searching a few paths and all of them are
                 // files, then memory maps are probably faster.