Hi,
On Wed, Aug 17, 2011 at 11:03:40AM +0200, Per Forlin wrote:
From: Per Forlin per.forlin@linaro.org
Skip the use of work queue and call musb_dma_completion() directly from DMA callback context.
Here follows measurements on a Snowball board with ondemand governor active.
Performance using work queue: (105 MB) copied, 6.23758 s, 16.8 MB/s (105 MB) copied, 5.7151 s, 18.3 MB/s (105 MB) copied, 5.83583 s, 18.0 MB/s (105 MB) copied, 5.93611 s, 17.7 MB/s
Performance without work queue (105 MB) copied, 5.62173 s, 18.7 MB/s (105 MB) copied, 5.61811 s, 18.7 MB/s (105 MB) copied, 5.57817 s, 18.8 MB/s (105 MB) copied, 5.58549 s, 18.8 MB/s
Signed-off-by: Per Forlin per.forlin@linaro.org Acked-by: Mian Yousaf Kaukab mian.yousaf.kaukab@stericsson.com
thanks a lot :-) applied.