From: Rajkumar Manoharan <rmanohar@codeaurora.org>
To: "Toke Høiland-Jørgensen" <toke@toke.dk>
Cc: linux-wireless@vger.kernel.org, ath10k@lists.infradead.org,
linux-wireless-owner@vger.kernel.org
Subject: Re: [PATCH 3/6] mac80211: Add airtime accounting and scheduling to TXQs
Date: Mon, 29 Oct 2018 16:50:50 -0700 [thread overview]
Message-ID: <5d8415fe50e8505eb62c5a0d1b40bb2a@codeaurora.org> (raw)
In-Reply-To: <8fd3524bfe022ccd2a8b61a3314ed32b@codeaurora.org>
On 2018-10-28 15:01, Rajkumar Manoharan wrote:
> On 2018-10-28 08:48, Toke Høiland-Jørgensen wrote:
>> Rajkumar Manoharan <rmanohar@codeaurora.org> writes:
>>
>>>
>>> 4ms 223 (40%) 214 (40%) 109 (10%) 94 (10%)
>>>
>>> 4ms 337 (90%) 182 (8%) 23 (1%) 30 (1%)
>>
>> So this looks like it's doing *something*, but not like it's
>> succeeding
>> in achieving the set percentages. Did you check if the actual airtime
>> values (in debugfs) corresponds to the configured weights?
>>
> No. Will check that.
>
Toke,
From above results, different airtime for each station is reflecting on
output performance. Unfortunately I don't see such tput difference, when
the tx mode is fixed in push-only. Even low weight station is giving
same
performance. Are you also seeing the same behavior in your setup? Could
you please share your results?
Not sure why low weight station (26us) is consuming more airtime than
higher airtime station. Below result is taken in push-only mode that
means only next_txq() ordering is followed.
cat /sys/kernel/debug/ieee80211/phy0/netdev\:wlan0/stations/*/airtime
RX: 0 us
TX: 980443 us
Weight: 176
Deficit: VO: 256 us VI: 256 us BE: -91 us BK: 256 us
RX: 0 us
TX: 2008512 us
Weight: 26
Deficit: VO: 238 us VI: 256 us BE: 24 us BK: 256 us
RX: 0 us
TX: 513287 us
Weight: 26
Deficit: VO: 256 us VI: 256 us BE: 1 us BK: 256 us
RX: 0 us
TX: 576746 us
Weight: 26
Deficit: VO: 256 us VI: 256 us BE: 10 us BK: 256 us
-Rajkumar
WARNING: multiple messages have this Message-ID (diff)
From: Rajkumar Manoharan <rmanohar@codeaurora.org>
To: "Toke Høiland-Jørgensen" <toke@toke.dk>
Cc: linux-wireless-owner@vger.kernel.org,
linux-wireless@vger.kernel.org, ath10k@lists.infradead.org
Subject: Re: [PATCH 3/6] mac80211: Add airtime accounting and scheduling to TXQs
Date: Mon, 29 Oct 2018 16:50:50 -0700 [thread overview]
Message-ID: <5d8415fe50e8505eb62c5a0d1b40bb2a@codeaurora.org> (raw)
In-Reply-To: <8fd3524bfe022ccd2a8b61a3314ed32b@codeaurora.org>
On 2018-10-28 15:01, Rajkumar Manoharan wrote:
> On 2018-10-28 08:48, Toke Høiland-Jørgensen wrote:
>> Rajkumar Manoharan <rmanohar@codeaurora.org> writes:
>>
>>>
>>> 4ms 223 (40%) 214 (40%) 109 (10%) 94 (10%)
>>>
>>> 4ms 337 (90%) 182 (8%) 23 (1%) 30 (1%)
>>
>> So this looks like it's doing *something*, but not like it's
>> succeeding
>> in achieving the set percentages. Did you check if the actual airtime
>> values (in debugfs) corresponds to the configured weights?
>>
> No. Will check that.
>
Toke,
From above results, different airtime for each station is reflecting on
output performance. Unfortunately I don't see such tput difference, when
the tx mode is fixed in push-only. Even low weight station is giving
same
performance. Are you also seeing the same behavior in your setup? Could
you please share your results?
Not sure why low weight station (26us) is consuming more airtime than
higher airtime station. Below result is taken in push-only mode that
means only next_txq() ordering is followed.
cat /sys/kernel/debug/ieee80211/phy0/netdev\:wlan0/stations/*/airtime
RX: 0 us
TX: 980443 us
Weight: 176
Deficit: VO: 256 us VI: 256 us BE: -91 us BK: 256 us
RX: 0 us
TX: 2008512 us
Weight: 26
Deficit: VO: 238 us VI: 256 us BE: 24 us BK: 256 us
RX: 0 us
TX: 513287 us
Weight: 26
Deficit: VO: 256 us VI: 256 us BE: 1 us BK: 256 us
RX: 0 us
TX: 576746 us
Weight: 26
Deficit: VO: 256 us VI: 256 us BE: 10 us BK: 256 us
-Rajkumar
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next prev parent reply other threads:[~2018-10-29 23:50 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-20 11:05 [PATCH 0/6] Move TXQ scheduling and airtime fairness into mac80211 Rajkumar Manoharan
2018-10-20 11:05 ` Rajkumar Manoharan
2018-10-20 11:05 ` [PATCH 1/6] mac80211: Add TXQ scheduling API Rajkumar Manoharan
2018-10-20 11:05 ` Rajkumar Manoharan
2018-11-09 12:00 ` Johannes Berg
2018-11-09 12:00 ` Johannes Berg
2018-11-09 12:39 ` Toke Høiland-Jørgensen
2018-11-09 12:39 ` Toke Høiland-Jørgensen
2018-10-20 11:05 ` [PATCH 2/6] cfg80211: Add airtime statistics and settings Rajkumar Manoharan
2018-10-20 11:05 ` Rajkumar Manoharan
2018-10-20 11:05 ` [PATCH 3/6] mac80211: Add airtime accounting and scheduling to TXQs Rajkumar Manoharan
2018-10-20 11:05 ` Rajkumar Manoharan
2018-10-26 14:16 ` Toke Høiland-Jørgensen
2018-10-26 14:16 ` Toke Høiland-Jørgensen
2018-10-26 23:04 ` Rajkumar Manoharan
2018-10-26 23:04 ` Rajkumar Manoharan
2018-10-28 15:48 ` Toke Høiland-Jørgensen
2018-10-28 15:48 ` Toke Høiland-Jørgensen
2018-10-28 22:01 ` Rajkumar Manoharan
2018-10-28 22:01 ` Rajkumar Manoharan
2018-10-29 23:50 ` Rajkumar Manoharan [this message]
2018-10-29 23:50 ` Rajkumar Manoharan
2018-11-02 10:30 ` Toke Høiland-Jørgensen
2018-11-02 10:30 ` Toke Høiland-Jørgensen
2018-11-05 8:39 ` Rajkumar Manoharan
2018-11-05 8:39 ` Rajkumar Manoharan
2018-11-07 14:53 ` Toke Høiland-Jørgensen
2018-11-07 14:53 ` Toke Høiland-Jørgensen
2018-11-07 22:35 ` Rajkumar Manoharan
2018-11-07 22:35 ` Rajkumar Manoharan
2018-11-08 13:46 ` Toke Høiland-Jørgensen
2018-11-08 13:46 ` Toke Høiland-Jørgensen
2018-10-31 6:17 ` yiboz
2018-10-31 6:17 ` yiboz
2018-10-20 11:05 ` [PATCH 4/6] ath9k: Switch to mac80211 TXQ scheduling and airtime APIs Rajkumar Manoharan
2018-10-20 11:05 ` Rajkumar Manoharan
2018-10-20 11:05 ` [PATCH 5/6] ath10k: migrate to mac80211 txq scheduling Rajkumar Manoharan
2018-10-20 11:05 ` Rajkumar Manoharan
2018-10-24 8:33 ` Kalle Valo
2018-10-24 8:33 ` Kalle Valo
2018-10-24 18:55 ` Rajkumar Manoharan
2018-10-24 18:55 ` Rajkumar Manoharan
2018-10-20 11:05 ` [PATCH 6/6] ath10k: reporting estimated tx airtime for fairness Rajkumar Manoharan
2018-10-20 11:05 ` Rajkumar Manoharan
2018-10-24 8:35 ` Kalle Valo
2018-10-24 8:35 ` Kalle Valo
2018-10-21 11:27 ` [PATCH 0/6] Move TXQ scheduling and airtime fairness into mac80211 Toke Høiland-Jørgensen
2018-10-21 11:27 ` Toke Høiland-Jørgensen
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