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From: Oliver Neukum <oneukum@suse.com>
To: Francesco Dolcini <francesco@dolcini.it>,
	Oliver Neukum <oneukum@suse.com>
Cc: "Hiago De Franco" <hiagofranco@gmail.com>,
	"Maciej Żenczykowski" <maze@google.com>,
	davem@davemloft.net, edumazet@google.com,
	hiago.franco@toradex.com, kuba@kernel.org,
	linux-usb@vger.kernel.org, pabeni@redhat.com
Subject: Re: Question regarding CDC NCM and VNC performance issue
Date: Thu, 7 Dec 2023 12:07:25 +0100	[thread overview]
Message-ID: <604fb326-61d5-4d67-b009-649ece32a1e9@suse.com> (raw)
In-Reply-To: <ZXGYgfFhVhlprqco@francesco-nb.int.toradex.com>



On 07.12.23 11:03, Francesco Dolcini wrote:
> Hello Oliver and Maciej
> 
> On Thu, Dec 07, 2023 at 10:41:51AM +0100, Oliver Neukum wrote:

>> OK, you are using Linux on _both_ sides. Interesting, far from obvious, though.
>> (Putting Maciej into CC)
> 
> One more data point. If the USB host side is Windows and not Linux it
> works fine.

That suggests, but does not prove that the issue is on the host side.
Could you post the result of "ethtool -S" after a test run? We should
get statistics on the reasons for transmissions that way.

	Regards
		Oliver


  reply	other threads:[~2023-12-07 11:07 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-04 18:37 Question regarding CDC NCM and VNC performance issue Hiago De Franco
2023-12-05  9:50 ` Oliver Neukum
2023-12-05 12:22   ` Hiago De Franco
2023-12-05 12:38     ` Oliver Neukum
2023-12-05 12:55       ` Hiago De Franco
2023-12-05 20:14       ` Hiago De Franco
2023-12-06 12:21         ` Oliver Neukum
2023-12-06 16:23           ` Hiago De Franco
2023-12-07  9:41             ` Oliver Neukum
2023-12-07 10:03               ` Francesco Dolcini
2023-12-07 11:07                 ` Oliver Neukum [this message]
2023-12-07 11:38                   ` Maciej Żenczykowski
2023-12-07 18:57                     ` Hiago De Franco
2023-12-07 19:37                       ` Maciej Żenczykowski
2023-12-11 20:28                         ` Hiago De Franco
2023-12-11 20:44                           ` Maciej Żenczykowski
2023-12-12  9:48                             ` Oliver Neukum
2023-12-12 20:32                               ` Hiago De Franco
2023-12-12 21:21                                 ` Oliver Neukum
2023-12-13  1:11                                   ` Maciej Żenczykowski
2023-12-15 21:20                                     ` Hiago De Franco
2023-12-15 21:44                                       ` Maciej Żenczykowski
2023-12-18 14:34                                         ` Oliver Neukum
2023-12-18 20:59                                           ` Hiago De Franco
2023-12-18 23:00                                             ` Maciej Żenczykowski
2023-12-19  8:45                                               ` Oliver Neukum
2023-12-19 12:19                                                 ` Maciej Żenczykowski
2023-12-19 13:24                                                   ` Oliver Neukum
2023-12-19 16:25                                                     ` Maciej Żenczykowski

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