[PATCH v10-mte 2/7] lib/test_bitmap: add tests for bitmap_{read,write}()

Yury Norov yury.norov at gmail.com
Thu Dec 14 11:50:33 PST 2023


On Thu, Dec 14, 2023 at 12:06:34PM +0100, Alexander Potapenko wrote:
> Add basic tests ensuring that values can be added at arbitrary positions
> of the bitmap, including those spanning into the adjacent unsigned
> longs.
> 
> Two new performance tests, test_bitmap_read_perf() and
> test_bitmap_write_perf(), can be used to assess future performance
> improvements of bitmap_read() and bitmap_write():
> 
> [    0.431119][    T1] test_bitmap: Time spent in test_bitmap_read_perf:	615253
> [    0.433197][    T1] test_bitmap: Time spent in test_bitmap_write_perf:	916313
> 
> (numbers from a Intel(R) Xeon(R) Gold 6154 CPU @ 3.00GHz machine running
> QEMU).
> 
> Signed-off-by: Alexander Potapenko <glider at google.com>
> Reviewed-by: Andy Shevchenko <andriy.shevchenko at linux.intel.com>
 
Acked-by: Yury Norov <yury.norov at gmail.com>



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