Re: [PATCH 9/9] mac80211: rc80211_minstrel: remove variance / stddev calculation

2018-10-06 Thread Dave Taht
On Sat, Oct 6, 2018 at 11:18 AM Felix Fietkau wrote: > > On 2018-10-06 19:59, Dave Taht wrote: > > On Sat, Oct 6, 2018 at 10:37 AM Felix Fietkau wrote: > >> > >> When there are few packets (e.g. for sampling attempts), the exponentially > >> weighted variance is usually vastly overestimated,

Re: [PATCH 9/9] mac80211: rc80211_minstrel: remove variance / stddev calculation

2018-10-06 Thread Felix Fietkau
On 2018-10-06 19:59, Dave Taht wrote: > On Sat, Oct 6, 2018 at 10:37 AM Felix Fietkau wrote: >> >> When there are few packets (e.g. for sampling attempts), the exponentially >> weighted variance is usually vastly overestimated, making the resulting data >> essentially useless. As far as I know,

Re: [PATCH 9/9] mac80211: rc80211_minstrel: remove variance / stddev calculation

2018-10-06 Thread Dave Taht
On Sat, Oct 6, 2018 at 10:37 AM Felix Fietkau wrote: > > When there are few packets (e.g. for sampling attempts), the exponentially > weighted variance is usually vastly overestimated, making the resulting data > essentially useless. As far as I know, there has not been any practical use > for

[PATCH 9/9] mac80211: rc80211_minstrel: remove variance / stddev calculation

2018-10-06 Thread Felix Fietkau
When there are few packets (e.g. for sampling attempts), the exponentially weighted variance is usually vastly overestimated, making the resulting data essentially useless. As far as I know, there has not been any practical use for this, so let's not waste any cycles on it. Signed-off-by: Felix