}
return ((usec * TICKS_PER_SECOND) / 1000000);
-#elif defined(HAVE_CLOCK_GETTIME) && defined (_POSIX_THREAD_CPUTIME) && defined(CLOCK_THREAD_CPUTIME_ID) && defined(HAVE_SYSCONF)
+#elif !defined(BE_CONSERVATIVE) && defined(HAVE_CLOCK_GETTIME) && defined (_POSIX_THREAD_CPUTIME) && defined(CLOCK_THREAD_CPUTIME_ID) && defined(HAVE_SYSCONF)
if (sysconf(_POSIX_THREAD_CPUTIME) != -1) {
// clock_gettime() gives us per-thread CPU time. It isn't
// reliable on Linux, but it's the best we have.