mariadb/newbrt/trace_mem.c

40 lines
1 KiB
C
Raw Normal View History

#include <stdio.h>
#include "../include/rdtsc.h"
// customize this as required
#define NTRACE 1000
#if NTRACE
static struct toku_trace {
const char *str;
int n;
unsigned long long ts;
} toku_trace[NTRACE];
static int toku_next_trace = 0;
#endif
void toku_add_trace_mem(const char *str, int n) __attribute__((__visibility__("default")));
void toku_add_trace_mem(const char *str __attribute__((unused)),
int n __attribute__((unused))) {
#if USE_RDTSC && NTRACE
int i = toku_next_trace++;
if (toku_next_trace >= NTRACE) toku_next_trace = 0;
toku_trace[i].ts = rdtsc();
toku_trace[i].str = str;
toku_trace[i].n = n;
#endif
}
void toku_print_trace_mem() __attribute__((__visibility__("default")));
void toku_print_trace_mem() {
#if NTRACE
int i = toku_next_trace;
do {
if (toku_trace[i].str)
printf("%llu %s:%d\n", toku_trace[i].ts, toku_trace[i].str, toku_trace[i].n);
i++;
if (i >= NTRACE) i = 0;
} while (i != toku_next_trace);
#endif
}