* [9fans] raspberry pi & ethernet performance
@ 2015-02-02 1:24 Steve Simon
2015-02-02 10:55 ` Richard Miller
0 siblings, 1 reply; 4+ messages in thread
From: Steve Simon @ 2015-02-02 1:24 UTC (permalink / raw)
To: 9fans
A while back there was some discussion of the ether performance of the PI
under plan9 being significantly poorer than under linux.
Did anyone get anywhere looking at this issue?
-Steve
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [9fans] raspberry pi & ethernet performance
2015-02-02 1:24 [9fans] raspberry pi & ethernet performance Steve Simon
@ 2015-02-02 10:55 ` Richard Miller
2015-02-02 14:16 ` erik quanstrom
0 siblings, 1 reply; 4+ messages in thread
From: Richard Miller @ 2015-02-02 10:55 UTC (permalink / raw)
To: 9fans
Ethernet performance was improved quite a bit by the introduction
of the etherusb kernel driver - before that, packets were going between
usb and ether queues via a user space process.
Any further improvement will probably be bounded by the simple synchronous
i/o model of usb in Plan 9 (built for comfort, not for speed).
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [9fans] raspberry pi & ethernet performance
2015-02-02 10:55 ` Richard Miller
@ 2015-02-02 14:16 ` erik quanstrom
2015-02-02 17:29 ` Richard Miller
0 siblings, 1 reply; 4+ messages in thread
From: erik quanstrom @ 2015-02-02 14:16 UTC (permalink / raw)
To: 9fans
On Mon Feb 2 03:13:54 PST 2015, 9fans@hamnavoe.com wrote:
> Ethernet performance was improved quite a bit by the introduction
> of the etherusb kernel driver - before that, packets were going between
> usb and ether queues via a user space process.
>
> Any further improvement will probably be bounded by the simple synchronous
> i/o model of usb in Plan 9 (built for comfort, not for speed).
any suggestions on a more performant model?
- erik
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [9fans] raspberry pi & ethernet performance
2015-02-02 14:16 ` erik quanstrom
@ 2015-02-02 17:29 ` Richard Miller
0 siblings, 0 replies; 4+ messages in thread
From: Richard Miller @ 2015-02-02 17:29 UTC (permalink / raw)
To: 9fans
>> Any further improvement will probably be bounded by the simple synchronous
>> i/o model of usb in Plan 9 (built for comfort, not for speed).
>
> any suggestions on a more performant model?
More asynchrony => fill more frames with packets.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2015-02-02 17:29 UTC | newest]
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2015-02-02 1:24 [9fans] raspberry pi & ethernet performance Steve Simon
2015-02-02 10:55 ` Richard Miller
2015-02-02 14:16 ` erik quanstrom
2015-02-02 17:29 ` Richard Miller
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