自实现内存池：按大小分桶，8bit跨度，支持释放。

resp协议pipline测试。

memory/alloc_dispatch.c

@@ -0,0 +1,30 @@
+#include "mempool.h"
+#include <stddef.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <jemalloc/jemalloc.h>
+
+mp_pool_t global_mempool;
+
+void *kvs_malloc(size_t size) {
+#if MEMORY_SELECT_MALLOC == MEMORY_USE_DEFAULT
+	return malloc(size);
+#elif MEMORY_SELECT_MALLOC == MEMORY_USE_MYMALLOC
+    return mp_alloc(size);
+#elif MEMORY_SELECT_MALLOC == MEMORY_USE_JEMALLOC
+    return je_malloc(size);
+#endif
+}
+
+void kvs_free(void *ptr) {
+#if MEMORY_SELECT_MALLOC == MEMORY_USE_DEFAULT
+	free(ptr);
+#elif MEMORY_SELECT_MALLOC == MEMORY_USE_MYMALLOC
+    int ret = mp_free(ptr);
+    if(ret == MEMPOOL_DOUBLE_FREE){
+        printf("double free %p\n", ptr);
+    }
+#elif MEMORY_SELECT_MALLOC == MEMORY_USE_JEMALLOC
+    je_free(ptr);
+#endif
+}