CLOCK_MONOTONIC_PRECISE
case CLOCK_MONOTONIC_PRECISE:
case CLOCK_MONOTONIC_PRECISE:
case CLOCK_MONOTONIC_PRECISE:
clock_gettime(CLOCK_MONOTONIC_PRECISE, &ts);
clock_gettime(CLOCK_MONOTONIC_PRECISE, &start);
clock_gettime(CLOCK_MONOTONIC_PRECISE, &end);
clock_gettime(CLOCK_MONOTONIC_PRECISE, &ctx->t_start);
clock_gettime(CLOCK_MONOTONIC_PRECISE,
clock_gettime(CLOCK_MONOTONIC_PRECISE, &ctx->t_end);
clock_gettime(CLOCK_MONOTONIC_PRECISE, &tv);