Hans de GoedeandKieran Bingham
6e53e72e96
Make the storage used to accumulate the RGB sums and the Y histogram value a vector of SwIspStats objects instead of a single object so that when using multi-threading every thread can use its own storage to collect intermediate stats to avoid cache-line bouncing. Benchmarking with the GPU-ISP which does separate swstats benchmarking, on the Arduino Uno-Q which has a weak CPU which is good for performance testing, shows 20ms to generate stats for a 3272x2464 frame both before and after this change. Reviewed-by: Milan Zamazal <mzamazal@redhat.com> Signed-off-by: Hans de Goede <johannes.goede@oss.qualcomm.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>