special encoding limits redefined, and all the config options for spe…

…cial encodings added in the example redis.conf file

redis.conf

@@ -377,6 +377,19 @@ glueoutputbuf yes
 hash-max-zipmap-entries 64
 hash-max-zipmap-value 512
 
+# Similarly to hashes, small lists are also encoded in a special way in order
+# to save a lot of space. The special representation is only used when
+# you are under the following limits:
+list-max-ziplist-entries 512
+list-max-ziplist-value 64
+
+# Sets have a special encoding in just one case: when a set is composed
+# of just strings that happens to be integers in radix 10 in the range
+# of 64 bit signed integers.
+# The following configuration setting sets the limit in the size of the
+# set in order to use this special memory saving encoding.
+set-max-intset-entries 512
+
 # Active rehashing uses 1 millisecond every 100 milliseconds of CPU time in
 # order to help rehashing the main Redis hash table (the one mapping top-level
 # keys to values). The hash table implementation redis uses (see dict.c)

src/redis.h

@@ -196,9 +196,9 @@
 /* Zip structure related defaults */
 #define REDIS_HASH_MAX_ZIPMAP_ENTRIES 64
 #define REDIS_HASH_MAX_ZIPMAP_VALUE 512
-#define REDIS_LIST_MAX_ZIPLIST_ENTRIES 1024
-#define REDIS_LIST_MAX_ZIPLIST_VALUE 32
-#define REDIS_SET_MAX_INTSET_ENTRIES 4096
+#define REDIS_LIST_MAX_ZIPLIST_ENTRIES 512
+#define REDIS_LIST_MAX_ZIPLIST_VALUE 64
+#define REDIS_SET_MAX_INTSET_ENTRIES 512
 
 /* Sets operations codes */
 #define REDIS_OP_UNION 0