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@@ -253,7 +253,7 @@ static void ring_buffer_producer(void)
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}
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time = end_tv.tv_sec - start_tv.tv_sec;
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- time *= 1000000;
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+ time *= USEC_PER_SEC;
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time += (long long)((long)end_tv.tv_usec - (long)start_tv.tv_usec);
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entries = ring_buffer_entries(buffer);
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@@ -273,7 +273,8 @@ static void ring_buffer_producer(void)
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pr_info("Missed: %ld\n", missed);
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pr_info("Hit: %ld\n", hit);
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- do_div(time, 1000);
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+ /* Convert time from usecs to millisecs */
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+ do_div(time, USEC_PER_MSEC);
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if (time)
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hit /= (long)time;
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else
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@@ -282,18 +283,19 @@ static void ring_buffer_producer(void)
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pr_info("Entries per millisec: %ld\n", hit);
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if (hit) {
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- avg = 1000000 / hit;
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+ /* Calculate the average time in nanosecs */
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+ avg = NSEC_PER_MSEC / hit;
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pr_info("%ld ns per entry\n", avg);
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}
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-
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if (missed) {
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if (time)
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missed /= (long)time;
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pr_info("Total iterations per millisec: %ld\n", hit + missed);
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- avg = 1000000 / (hit + missed);
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+ /* Caculate the average time in nanosecs */
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+ avg = NSEC_PER_MSEC / (hit + missed);
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pr_info("%ld ns per entry\n", avg);
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}
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}
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