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Subject: Re: Throughput regression with `tcp: refine TSO autosizing`
From: Eric Dumazet <eric.dumazet@gmail.com>
To: Michal Kazior <michal.kazior@tieto.com>
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On Tue, 2015-02-10 at 11:33 +0100, Michal Kazior wrote:
>                            ath10k_core_napi_dummy_poll, 64);
> +       ewma_init(&ar->tx_delay_us, 16384, 8);


1) 16384 factor might be too big.

2) a weight of 8 seems too low given aggregation values used in wifi.

On 32bit arches, the max range for ewma value would be 262144 usec,
a quarter of a second...

You could use a factor of 64 instead, and a weight of 16.