Changeset 1905 in kBuild

Timestamp:

Oct 21, 2008 5:13:12 AM (16 years ago)

Author:

bird

Message:

strcache2: benchmarked strcache2_case_sensitive_hash_1 against return_STRING_N_HASH_1, finding it 18% faster.

File:

• trunk/src/kmk/strcache2.c (modified) (1 diff)

trunk/src/kmk/strcache2.c

@@ -105 +105 @@
 strcache2_case_sensitive_hash_1 (const char *str, unsigned int len)
 {
+  /* Note! This implementation is 18% faster than return_STRING_N_HASH_1
+           when running the two 100 times over typical kBuild strings that
+           end up here (did a fprintf here and built kBuild).
+           Compiler was 32-bit gcc 4.0.1, darwin, with -O2. */
+
   unsigned int hash = 0;
   if (MY_PREDICT_TRUE(len >= 2))