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Subject[PATCH] find_bit_benchmark: align test_find_next_and_bit with others
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In contrary to other tests, the test_find_next_and_bit uses tab
formatting in output and get_cycles() instead of ktime_get().
get_cycles() is not supported by some arches, so ktime_get()
fits better in generic code.

Fix it and minor style issues, so the output looks like this:

Start testing find_bit() with random-filled bitmap
find_next_bit: 7142816 ns, 163282 iterations
find_next_zero_bit: 8545712 ns, 164399 iterations
find_last_bit: 6332032 ns, 163282 iterations
find_first_bit: 20509424 ns, 16606 iterations
find_next_and_bit: 4060016 ns, 73424 iterations

Start testing find_bit() with sparse bitmap
find_next_bit: 55984 ns, 656 iterations
find_next_zero_bit: 19197536 ns, 327025 iterations
find_last_bit: 65088 ns, 656 iterations
find_first_bit: 5923712 ns, 656 iterations
find_next_and_bit: 29088 ns, 1 iterations

Signed-off-by: Yury Norov <ynorov@caviumnetworks.com>
---
lib/find_bit_benchmark.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/lib/find_bit_benchmark.c b/lib/find_bit_benchmark.c
index 5367ffa5c18f..f0e394dd2beb 100644
--- a/lib/find_bit_benchmark.c
+++ b/lib/find_bit_benchmark.c
@@ -108,14 +108,13 @@ static int __init test_find_next_and_bit(const void *bitmap,
const void *bitmap2, unsigned long len)
{
unsigned long i, cnt;
- cycles_t cycles;
+ ktime_t time;

- cycles = get_cycles();
+ time = ktime_get();
for (cnt = i = 0; i < BITMAP_LEN; cnt++)
- i = find_next_and_bit(bitmap, bitmap2, BITMAP_LEN, i+1);
- cycles = get_cycles() - cycles;
- pr_err("find_next_and_bit:\t\t%llu cycles, %ld iterations\n",
- (u64)cycles, cnt);
+ i = find_next_and_bit(bitmap, bitmap2, BITMAP_LEN, i + 1);
+ time = ktime_get() - time;
+ pr_err("find_next_and_bit: %18llu ns, %6ld iterations\n", time, cnt);

return 0;
}
--
2.17.1
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