#define abs(x) ((x < 0)? -x : x)
#define usecdiff(now, last) (((((now)->tv_sec * 1000000ULL) + (now)->tv_usec) - (((last)->tv_sec * 1000000ULL) + (last)->tv_usec)))
+extern void netdata_fix_chart_id(char *s);
+extern void netdata_fix_chart_name(char *s);
+
extern uint32_t simple_hash(const char *name);
extern void strreverse(char* begin, char* end);
extern char *mystrsep(char **ptr, char *s);
extern int enable_ksm;
/* Number of ticks per second */
-#define HZ myhz
extern unsigned int hz;
extern void get_HZ(void);