From: Kalle Valo <kvalo@codeaurora.org>
To: Wen Gong <wgong@codeaurora.org>
Cc: johannes@sipsolutions.net, linux-wireless@vger.kernel.org,
ath10k@lists.infradead.org
Subject: Re: [PATCH v2 2/2] ath10k: Set sk_pacing_shift to 6 for 11AC WiFi chips
Date: Thu, 23 Apr 2020 06:31:21 +0000 (UTC) [thread overview]
Message-ID: <20200423063121.38039C432C2@smtp.codeaurora.org> (raw)
In-Reply-To: <1533724802-30944-3-git-send-email-wgong@codeaurora.org>
Wen Gong <wgong@codeaurora.org> wrote:
> Upstream kernel has an interface to help adjust sk_pacing_shift to help
> improve TCP UL throughput.
> The sk_pacing_shift is 8 in mac80211, this is based on test with 11N
> WiFi chips with ath9k. For QCA6174/QCA9377 PCI 11AC chips, the 11AC
> VHT80 TCP UL throughput testing result shows 6 is the optimal.
> Overwrite the sk_pacing_shift to 6 in ath10k driver for QCA6174/9377 PCI.
>
> Tested with QCA6174 PCI with firmware
> WLAN.RM.4.4.1-00109-QCARMSWPZ-1, but this will also affect QCA9377 PCI.
> It's not a regression with new firmware releases.
>
> There have 2 test result of different settings:
>
> ARM CPU based device with QCA6174A PCI with different
> sk_pacing_shift:
>
> sk_pacing_shift throughput(Mbps) CPU utilization
> 6 500(-P5) ~75% idle, Focus on CPU1: ~14%idle
> 7 454(-P5) ~80% idle, Focus on CPU1: ~4%idle
> 8 288 ~90% idle, Focus on CPU1: ~35%idle
> 9 ~200 ~92% idle, Focus on CPU1: ~50%idle
>
> 5G TCP UL VTH80 on X86 platform with QCA6174A PCI with sk_packing_shift
> set to 6:
>
> tcp_limit_output_bytes throughput(Mbps)
> default(262144)+1 Stream 336
> default(262144)+2 Streams 558
> default(262144)+3 Streams 584
> default(262144)+4 Streams 602
> default(262144)+5 Streams 598
> changed(2621440)+1 Stream 598
> changed(2621440)+2 Streams 601
>
> Signed-off-by: Wen Gong <wgong@codeaurora.org>
The final result of this patch is unclear so I'm dropping this. Please
resend if the issue still exists.
Patch set to Changes Requested.
--
https://patchwork.kernel.org/patch/10559733/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
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next prev parent reply other threads:[~2020-04-23 6:31 UTC|newest]
Thread overview: 97+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-08 10:40 [PATCH v2 0/2] Change sk_pacing_shift in ieee80211_hw for best tx throughput Wen Gong
2018-08-08 10:40 ` Wen Gong
2018-08-08 10:40 ` [PATCH v2 1/2] mac80211: Change sk_pacing_shift saved to ieee80211_hw Wen Gong
2018-08-08 10:40 ` Wen Gong
2018-08-08 10:40 ` [PATCH v2 2/2] ath10k: Set sk_pacing_shift to 6 for 11AC WiFi chips Wen Gong
2018-08-08 10:40 ` Wen Gong
2018-08-08 10:43 ` Toke Høiland-Jørgensen
2018-08-08 10:43 ` Toke Høiland-Jørgensen
2018-08-10 8:05 ` Wen Gong
2018-08-10 8:05 ` Wen Gong
2018-08-10 13:17 ` Toke Høiland-Jørgensen
2018-08-10 13:17 ` Toke Høiland-Jørgensen
2018-08-13 5:37 ` Wen Gong
2018-08-13 5:37 ` Wen Gong
2018-08-13 11:18 ` Toke Høiland-Jørgensen
2018-08-13 11:18 ` Toke Høiland-Jørgensen
2018-08-14 5:55 ` Wen Gong
2018-08-14 5:55 ` Wen Gong
2018-08-17 11:32 ` Toke Høiland-Jørgensen
2018-08-17 11:32 ` Toke Høiland-Jørgensen
2018-08-30 23:25 ` Peter Oh
2018-08-30 23:25 ` Peter Oh
2018-08-31 15:36 ` Toke Høiland-Jørgensen
2018-08-31 15:36 ` Toke Høiland-Jørgensen
2018-08-30 23:32 ` Grant Grundler
2018-09-03 9:38 ` Johannes Berg
2018-09-03 9:38 ` Johannes Berg
2018-09-03 11:11 ` Toke Høiland-Jørgensen
2018-09-03 11:11 ` Toke Høiland-Jørgensen
2018-09-03 11:47 ` Johannes Berg
2018-09-03 11:47 ` Johannes Berg
2018-09-03 13:35 ` Toke Høiland-Jørgensen
2018-09-03 13:35 ` Toke Høiland-Jørgensen
2018-09-03 14:57 ` Dave Taht
2018-09-03 14:57 ` Dave Taht
2018-09-03 15:35 ` Dave Taht
2018-09-03 15:35 ` Dave Taht
2018-09-04 23:43 ` Grant Grundler
2018-09-04 23:43 ` Grant Grundler
2018-09-05 7:23 ` Wen Gong
2018-09-05 7:23 ` Wen Gong
2018-09-06 10:18 ` Toke Høiland-Jørgensen
2018-09-06 10:18 ` Toke Høiland-Jørgensen
2019-02-20 19:15 ` Grant Grundler
2019-02-20 19:15 ` Grant Grundler
2019-02-21 4:39 ` Kalle Valo
2019-02-21 4:39 ` Kalle Valo
2019-02-21 15:42 ` Toke Høiland-Jørgensen
2019-02-21 15:42 ` Toke Høiland-Jørgensen
2019-02-21 16:10 ` Kalle Valo
2019-02-21 16:10 ` Kalle Valo
2019-02-21 16:22 ` Ben Greear
2019-02-21 16:22 ` Ben Greear
2019-02-21 16:37 ` Toke Høiland-Jørgensen
2019-02-21 16:37 ` Toke Høiland-Jørgensen
2019-02-21 16:57 ` Ben Greear
2019-02-21 16:57 ` Ben Greear
2019-02-21 17:15 ` Toke Høiland-Jørgensen
2019-02-21 17:15 ` Toke Høiland-Jørgensen
2019-02-21 17:29 ` [PATCH] mac80211: Change default tx_sk_pacing_shift to 7 Toke Høiland-Jørgensen
2019-02-21 17:29 ` Toke Høiland-Jørgensen
2019-02-22 12:29 ` Johannes Berg
2019-02-22 13:06 ` Toke Høiland-Jørgensen
2019-02-22 13:06 ` Toke Høiland-Jørgensen
2019-02-22 13:07 ` Johannes Berg
2019-02-22 13:07 ` Johannes Berg
2019-02-22 13:40 ` Toke Høiland-Jørgensen
2019-02-22 13:40 ` Toke Høiland-Jørgensen
2019-02-22 19:10 ` Johannes Berg
2019-02-22 19:10 ` Johannes Berg
2019-02-23 11:49 ` Toke Høiland-Jørgensen
2019-02-23 11:49 ` Toke Høiland-Jørgensen
2019-02-21 17:29 ` [PATCH v2 2/2] ath10k: Set sk_pacing_shift to 6 for 11AC WiFi chips Ben Greear
2019-02-21 17:29 ` Ben Greear
2019-02-21 22:50 ` Toke Høiland-Jørgensen
2019-02-21 22:50 ` Toke Høiland-Jørgensen
2019-02-21 16:28 ` Toke Høiland-Jørgensen
2019-02-21 16:28 ` Toke Høiland-Jørgensen
2020-04-23 6:31 ` Kalle Valo [this message]
2020-04-23 6:31 ` Kalle Valo
2018-08-08 19:00 ` [PATCH v2 0/2] Change sk_pacing_shift in ieee80211_hw for best tx throughput Peter Oh
2018-08-08 19:00 ` Peter Oh
2018-08-09 9:32 ` Arend van Spriel
2018-08-09 9:32 ` Arend van Spriel
2018-08-10 13:20 ` Toke Høiland-Jørgensen
2018-08-10 13:20 ` Toke Høiland-Jørgensen
2018-08-10 19:28 ` Arend van Spriel
2018-08-10 19:28 ` Arend van Spriel
2018-08-10 19:52 ` Ben Greear
2018-08-10 19:52 ` Ben Greear
2018-08-11 19:21 ` Arend van Spriel
2018-08-11 19:21 ` Arend van Spriel
2018-08-20 12:46 ` Toke Høiland-Jørgensen
2018-08-20 12:46 ` Toke Høiland-Jørgensen
2018-08-20 15:14 ` Ben Greear
2018-08-20 15:14 ` Ben Greear
2018-09-03 18:36 [PATCH v2 2/2] ath10k: Set sk_pacing_shift to 6 for 11AC WiFi chips Kan Yan
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