RE: [LINUX PATCH] dma-mapping: Control memset operation using gfp flags

2019-09-17 Thread Dylan Yip
Please ignore, sent to wrong list. > -Original Message- > From: Dylan Yip > Sent: Tuesday, September 17, 2019 1:21 PM > To: linux-media@vger.kernel.org; Satish Kumar Nagireddy > > Cc: Dylan Yip > Subject: [LINUX PATCH] dma-mapping: Control memset operation usin

[LINUX PATCH] dma-mapping: Control memset operation using gfp flags

2019-09-17 Thread Dylan Yip
In case of 4k video buffer, the allocation from a reserved memory is taking a long time, ~500ms. This is root caused to the memset() operations on the allocated memory which is consuming more cpu cycles. Due to this delay, we see that initial frames are being dropped. To fix this, we have wrapped