From: Michael Grzeschik <mgr@pengutronix.de>
To: Dan Vacura <w36195@motorola.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
linux-usb@vger.kernel.org, balbi@kernel.org,
paul.elder@ideasonboard.com, kernel@pengutronix.de,
nicolas@ndufresne.ca, kieran.bingham@ideasonboard.com
Subject: Re: [PATCH 3/5] usb: gadget: uvc: increase worker prio to WQ_HIGHPRI
Date: Mon, 2 May 2022 11:00:03 +0200 [thread overview]
Message-ID: <20220502090003.GH7671@pengutronix.de> (raw)
In-Reply-To: <20220429200137.GE7671@pengutronix.de>
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Hi Dan,
On Fri, Apr 29, 2022 at 10:01:37PM +0200, Michael Grzeschik wrote:
>On Fri, Apr 29, 2022 at 01:51:48PM -0500, Dan Vacura wrote:
>>Thanks for this change it improves the performance with the DWC3
>>controller on QCOM chips in an Android 5.10 kernel. I haven't tested the
>>scatter/gather path, so memcpy was used here via
>>uvc_video_encode_isoc(). I was able to get around 30% improvement (fps
>>on host side). I did modify the alloc to only set the WQ_HIGHPRI flag.
I missed to ask you to try the WQ_CPU_INTENSIVE flag. It would be
interesting if you can see further improvement.
Regards,
Michael
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next prev parent reply other threads:[~2022-05-02 9:00 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-02 23:39 [PATCH 0/5] usb: gadget: uvc: fixes and improvements Michael Grzeschik
2022-04-02 23:39 ` [PATCH 1/5] usb: gadget: uvc: reset bytesused on queue cancel Michael Grzeschik
2022-04-05 8:43 ` Sergey Shtylyov
2022-04-05 15:01 ` Dan Vacura
2022-04-06 8:26 ` Michael Grzeschik
2022-04-02 23:39 ` [PATCH 2/5] usb: gadget: uvc: calculate the number of request depending on framesize Michael Grzeschik
2022-04-19 20:46 ` Laurent Pinchart
2022-05-08 22:48 ` Michael Grzeschik
2022-04-02 23:39 ` [PATCH 3/5] usb: gadget: uvc: increase worker prio to WQ_HIGHPRI Michael Grzeschik
2022-04-19 20:46 ` Laurent Pinchart
2022-04-29 18:51 ` Dan Vacura
2022-04-29 20:01 ` Michael Grzeschik
2022-05-02 9:00 ` Michael Grzeschik [this message]
2022-05-06 21:49 ` Dan Vacura
2022-09-28 20:12 ` Laurent Pinchart
2022-04-02 23:39 ` [PATCH 4/5] usb: gadget: uvc: call uvc uvcg_warn on completed status instead of uvcg_info Michael Grzeschik
2022-04-19 20:47 ` Laurent Pinchart
2022-04-02 23:39 ` [PATCH 5/5] usb: gadget: uvc: stop the pump on more conditions Michael Grzeschik
2022-04-04 11:30 ` kernel test robot
2022-04-04 13:07 ` Michael Grzeschik
2022-04-19 14:21 ` Greg KH
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