Work on pma spec and speed up key compare

git-svn-id: file:///svn/tokudb@47 c7de825b-a66e-492c-adef-691d508d4ae1

loadsome/Makefile

+CFLAGS = -W -Wall -O2
+serial.%.50K: makedata-serial
+	./makedata-serial $(patsubst serial.%.50K, %, $@) 50000 > $@
+
+serial.%.300K: makedata-serial
+	./makedata-serial $(patsubst serial.%.300K, %, $@) 300000 > $@
+
+random.1.300K:
+	./makedata-random 1000 600000 1 > random.1.300K
+
+random.2.300K:
+	./makedata-random 1000 900000 2 > random.2.300K
+
+random.9.300K:
+	./makedata-random 1000 3000000 9 > random.9.300K
+
+random.19.300K:
+	./makedata-random 1000 6000000 19 > random.19.300K

newbrt/Makefile

 # GCOV_FLAGS = -fprofile-arcs -ftest-coverage
 # PROF_FLAGS = -pg
-#OPTFLAGS = -O2
+OPTFLAGS = -O2
 CFLAGS = -Wall -W $(OPTFLAGS) -g $(GCOV_FLAGS) $(PROF_FLAGS) -Werror -fPIC
 LDFLAGS = $(OPTFLAGS) -g $(GCOV_FLAGS) $(PROF_FLAGS) 
 

newbrt/key.c

@@ -2,7 +2,24 @@
 #include <assert.h>
 #include <string.h>
 
-int keycompare (bytevec key1, ITEMLEN key1len, bytevec key2, ITEMLEN key2len) {
+int keycompare (bytevec key1b, ITEMLEN key1len, bytevec key2b, ITEMLEN key2len) {
+    const unsigned char *key1 = key1b;
+    const unsigned char *key2 = key2b;
+    while (key1len > 0 && key2len > 0) {
+	unsigned char b1 = key1[0];
+	unsigned char b2 = key2[0];
+	if (b1<b2) return -1;
+	if (b1>b2) return 1;
+	key1len--; key1++;
+	key2len--; key2++;
+    }
+    if (key1len<key2len) return -1;
+    if (key1len>key2len) return 1;
+    return 0;
+}
+
+#if 0
+int oldkeycompare (bytevec key1, ITEMLEN key1len, bytevec key2, ITEMLEN key2len) {
     if (key1len==key2len) {
 	return memcmp(key1,key2,key1len);
     } else if (key1len<key2len) {
@@ -13,6 +30,7 @@ int keycompare (bytevec key1, ITEMLEN key1len, bytevec key2, ITEMLEN key2len) {
 	return -keycompare(key2,key2len,key1,key1len);
     }
 }
+#endif
 
 void test_keycompare (void) {
     assert(keycompare("a",1, "a",1)==0);