From: Brendan J Simon <Brendan.Simon@ctam.com.au>
To: Dvir Oren <dviro@lucidvon.com>
Cc: MTD <mtd@infradead.org>
Subject: Re: Hardware RO & delays [DOC2000]
Date: Fri, 07 Jan 2000 13:01:47 +1100 [thread overview]
Message-ID: <3875490A.1078B54B@ctam.com.au> (raw)
In-Reply-To: E126NIB-0005it-00@infradead.org
Dvir Oren wrote:
> 2. Does the driver block the system? I'm experience delays in
> sending udp packets over ethernet for periods of 50-300
> miliseconds. I have a function that is supposed to send every
> several miliseconds a packets, and when going over the logs, I
> once in a while see a packet that is delayed for several tens of
> miliseconds, which is not acceptable by me. Any ideas?
>
> David, does the driver block the system?
Are you sure it is the DOC drivers ? Could it be something else ?
Highly loaded ethernet network with lots of collisions which forces the
ethernet card to back off it's transmissions ?
If you are not using a Real Time Operating System (like RT-Linux or
KURT) then you are not guaranteed to have processes run with any
determinism.
Brendan Simon.
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next prev parent reply other threads:[~2000-01-07 2:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-01-04 21:45 Hardware RO & delays [DOC2000] Dvir Oren
2000-01-07 2:01 ` Brendan J Simon [this message]
2000-01-07 15:55 ` Dvir Oren
2000-01-07 9:15 ` David Woodhouse
2000-01-07 15:55 ` Dvir Oren
2000-01-07 16:10 ` David Woodhouse
2000-01-14 1:37 ` i hope to write open source's firmware jyllyj
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