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From: "Iñaki Pascual" <ipascual@cttc.cat>
To: ath10k@lists.infradead.org
Subject: high RTT in 40 MHz channel width
Date: Fri, 29 Apr 2016 19:12:43 +0200	[thread overview]
Message-ID: <5723960B.9040404@cttc.cat> (raw)

Hi,

I am measuring TCP and UDP latency (actually RTT) and I am getting too 
high values when working with channels with 40MHz (also with 80MHz) width.

I am using hping3 for testing and these are the RTT avg values:

BW 20 MHz: TCP 0.9 UDP 1.1
BW 40 MHz: TCP 7.7 UDP 1.3
BW 80 MHz: TCP 3.5 UDP 1.3

I have tried different channels with similar results. According hping 
there are no packet loss and with wireshark I don't see any retransmission.

I am using:
driver: ath10k_pci
version: 4.2.0+
firmware-version: 10.1.467-ct-com-full-014-96d543

Any ideas?

Bests,

Iñaki

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             reply	other threads:[~2016-04-29 17:13 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-29 17:12 Iñaki Pascual [this message]
2016-04-30 16:39 ` high RTT in 40 MHz channel width Jose Núñez-Martínez (CTTC)
2016-04-30 16:50   ` Ben Greear
2016-05-05 10:36     ` Iñaki Pascual
2016-05-05 10:47 ` Michal Kazior
2016-05-05 11:05   ` Iñaki Pascual

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