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Re: [PATCH v2 2/2] ath10k: Set sk_pacing_shift to 6 for 11AC WiFi chips

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Grant Grundler <grundler@xxxxxxxxxx> writes:

> On Thu, Sep 6, 2018 at 3:18 AM Toke Høiland-Jørgensen <toke@xxxxxxx> wrote:
>>
>> Grant Grundler <grundler@xxxxxxxxxx> writes:
>>
>> >> And, well, Grant's data is from a single test in a noisy
>> >> environment where the time series graph shows that throughput is all over
>> >> the place for the duration of the test; so it's hard to draw solid
>> >> conclusions from (for instance, for the 5-stream test, the average
>> >> throughput for 6 is 331 and 379 Mbps for the two repetitions, and for 7
>> >> it's 326 and 371 Mbps) . Unfortunately I don't have the same hardware
>> >> used in this test, so I can't go verify it myself; so the only thing I
>> >> can do is grumble about it here... :)
>> >
>> > It's a fair complaint and I agree with it. My counter argument is the
>> > opposite is true too: most ideal benchmarks don't measure what most
>> > users see. While the data wgong provided are way more noisy than I
>> > like, my overall "confidence" in the "conclusion" I offered is still
>> > positive.
>>
>> Right. I guess I would just prefer a slightly more comprehensive
>> evaluation to base a 4x increase in buffer size on...
>
> Kalle, is this why you didn't accept this patch? Other reasons?

Just for reference, here are patchwork links:

https://patchwork.kernel.org/cover/10559729/
https://patchwork.kernel.org/patch/10559731/
https://patchwork.kernel.org/patch/10559733/

The mac80211 patch is accepted and the ath10k patch is deferred. IIRC I
put it deferred as I didn't see a real consensus about the patch and was
supposed to look at it later, but haven't done yet. I don't have any
issues with the patch, except maybe removing the duplicate define for
9377 (which I can easily fix in the pending branch).

-- 
Kalle Valo




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