[PATCH] ath10k: disable wake_tx_queue for older devices

Roman Yeryomin leroi.lists at gmail.com
Thu Aug 4 03:07:00 PDT 2016

On 1 August 2016 at 12:04, Dave Taht <dave.taht at gmail.com> wrote:
> On Mon, Aug 1, 2016 at 1:35 AM, Roman Yeryomin <leroi.lists at gmail.com> wrote:
>> On 7 July 2016 at 19:30, Valo, Kalle <kvalo at qca.qualcomm.com> wrote:
>>> Michal Kazior <michal.kazior at tieto.com> writes:
>>>> Ideally wake_tx_queue should be used regardless as
>>>> it is a requirement for reducing bufferbloat and
>>>> implementing airtime fairness in the future.
>>>> However some setups (typically low-end platforms
>>>> hosting QCA988X) suffer performance regressions
>>>> with the current wake_tx_queue implementation.
>>>> Therefore disable it unless it is really
>>>> beneficial with current codebase (which is when
>>>> firmware supports smart pull-push tx scheduling).
>>>> Signed-off-by: Michal Kazior <michal.kazior at tieto.com>
>>> I think it's too late to send this to 4.7 anymore (and this due to my
>>> vacation). So I'm planning to queue this to 4.8, but if the feedback is
>>> positive we can always send this to a 4.7 stable release.
>> Sorry guys, drowned.
>> So, yes, applying this patch does the job. That is gets me to the
>> results similar to
>> https://lists.openwrt.org/pipermail/openwrt-devel/2016-May/041448.html
>> Going to try latest code on same system...
> Can you try increasing the quantum to 1514, and reducing the codel
> target to 5ms? (without this patch?)

So it was 1514 already...


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