xnu-7195.101.1.tar.gz

[apple/xnu.git] / tests / vm / perf_helpers.c

diff --git a/tests/vm/perf_helpers.c b/tests/vm/perf_helpers.c
deleted file mode 100644 (file)
index b4dea31..0000000
--- a/tests/vm/perf_helpers.c
+++ /dev/null
@@ -1,69 +0,0 @@
-#include <assert.h>
-#include <errno.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <sys/mman.h>
-
-#include "vm/perf_helpers.h"
-
-#define K_CTIME_BUFFER_LEN  26
-void
-benchmark_log(bool verbose, const char *restrict fmt, ...)
-{
-       time_t now;
-       char time_buffer[K_CTIME_BUFFER_LEN];
-       struct tm local_time;
-       va_list args;
-       if (verbose) {
-               strncpy(time_buffer, "UNKNOWN", K_CTIME_BUFFER_LEN);
-
-               now = time(NULL);
-               if (now != -1) {
-                       struct tm* ret = localtime_r(&now, &local_time);
-                       if (ret == &local_time) {
-                               snprintf(time_buffer, K_CTIME_BUFFER_LEN,
-                                   "%.2d/%.2d/%.2d %.2d:%.2d:%.2d",
-                                   local_time.tm_mon + 1, local_time.tm_mday,
-                                   local_time.tm_year + 1900,
-                                   local_time.tm_hour, local_time.tm_min,
-                                   local_time.tm_sec);
-                       }
-               }
-
-               printf("%s: ", time_buffer);
-               va_start(args, fmt);
-               vprintf(fmt, args);
-               fflush(stdout);
-       }
-}
-
-uint64_t
-timespec_difference_us(const struct timespec* a, const struct timespec* b)
-{
-       assert(a->tv_sec >= b->tv_sec || a->tv_nsec >= b->tv_nsec);
-       long seconds_elapsed = a->tv_sec - b->tv_sec;
-       uint64_t nsec_elapsed;
-       if (b->tv_nsec > a->tv_nsec) {
-               seconds_elapsed--;
-               nsec_elapsed = kNumNanosecondsInSecond - (uint64_t) (b->tv_nsec - a->tv_nsec);
-       } else {
-               nsec_elapsed = (uint64_t) (a->tv_nsec - b->tv_nsec);
-       }
-       return (uint64_t) seconds_elapsed * kNumMicrosecondsInSecond + nsec_elapsed / kNumNanosecondsInMicrosecond;
-}
-
-unsigned char *
-mmap_buffer(size_t memsize)
-{
-       int fd = -1;
-       unsigned char* addr = (unsigned char *)mmap(NULL, memsize, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE,
-           fd, 0);
-       if ((void*) addr == MAP_FAILED) {
-               fprintf(stderr, "Unable to mmap a memory object: %s\n", strerror(errno));
-               exit(2);
-       }
-       return addr;
-}