James Mills wrote:
$ ./bench.py -m latency -t 10 -f 100
Setting up latency Test...
Latency: 1.52 ms
Latency: 0.78 ms
Latency: 0.76 ms
Latency: 0.76 ms
Latency: 0.77 ms
Latency: 0.77 ms
Latency: 0.76 ms
Latency: 0.76 ms
Latency: 0.76 ms
Latency: 0.77 ms
Interesting. Can you do something to
On 10/7/08, James Mills <[EMAIL PROTECTED]> wrote:
> I shall do some latency benchmarks ok :)
Out of curiosity I modifed my bench marking tool
for my event/component library (pymills) and here
are the results:
~/pymills/examples/event
$ ./bench.py -m latency -t 10
Setting up latency Test...
Late
Am 08.10.2008 um 06:59 schrieb Hendrik van Rooyen:
"Blubaugh, David A." wrote:
I have done some additional research into the possibility of
utilizing
Python for hard real time development. I have seen on various
websites
where this has been discussed before on the internet. However, I was
On Tue, Oct 7, 2008 at 7:27 PM, Kurt Mueller <[EMAIL PROTECTED]> wrote:
> To be more helpful, we should know what you mean by "HARD REAL TIME".
> Do you mean:
> - Handle at least 70 interrupt per second("SPEED")
> - If one fails, this is catastrophic for the application ("HARD")
On Tue, Oct 7, 2008 at 6:42 PM, <[EMAIL PROTECTED]> wrote:
> AFAIK, the requirement for hard real time, is that response time have
> to be predictable, rather than
> generally 'fast'.
> Very high level languages like python use many features which are by
> their nature unpredictable or
> difficult
"Blubaugh, David A." wrote:
>I have done some additional research into the possibility of utilizing
>Python for hard real time development. I have seen on various websites
>where this has been discussed before on the internet. However, I was
>wondering as to how successful anyone has truly be
>> I've done this using RTAI + ctypes. Of course the hard realtime
>> tasks are
>> written in C - but only the absolutely minimal core.
>> Works like a charm.
>
> (Btw, what is this application like)
It's for a robot with 8 motors, with a industrial PIII-based PC on board,
running RTAI Linux 2.6.
Am 07.10.2008 um 11:44 schrieb Diez B. Roggisch:
Kurt Mueller wrote:
David,
As others mentioned before, python is not the right tool for "HARD
REAL TIME".
But: Maybe you can isolate the part of your application that needs
"HARD REAL TIME".
Then implement this part in an approriate Environment
Kurt Mueller wrote:
> David,
>
>
> Am 07.10.2008 um 01:25 schrieb Blubaugh, David A.:
>> I have done some additional research into the possibility of utilizing
>> Python for hard real time development. I have seen on various
>> websites
>> where this has been discussed before on the internet.
David,
Am 07.10.2008 um 01:25 schrieb Blubaugh, David A.:
I have done some additional research into the possibility of utilizing
Python for hard real time development. I have seen on various
websites
where this has been discussed before on the internet. However, I was
wondering as to how s
On 7 Ott, 01:25, "Blubaugh, David A." <[EMAIL PROTECTED]> wrote:
> To All,
>
> I have done some additional research into the possibility of utilizing
> Python for hard real time development. I have seen on various websites
> where this has been discussed before on the internet. However, I was
> w
On Tue, 7 Oct 2008 12:10:44 +1000, James Mills <[EMAIL PROTECTED]> wrote:
On Tue, Oct 7, 2008 at 11:48 AM, Jean-Paul Calderone <[EMAIL PROTECTED]> wrote:
Indeed, this looks wrong - or at least inconclusive. The benchmark
above demonstrates throughput, not minimum (or maximum, or average,
or any
On Tue, Oct 7, 2008 at 11:48 AM, Jean-Paul Calderone <[EMAIL PROTECTED]> wrote:
> Indeed, this looks wrong - or at least inconclusive. The benchmark
> above demonstrates throughput, not minimum (or maximum, or average,
> or any other statistic) response latency, which is what the OP was
> really a
On Tue, 7 Oct 2008 09:32:37 +1000, James Mills <[EMAIL PROTECTED]> wrote:
On Tue, Oct 7, 2008 at 9:25 AM, Blubaugh, David A. <[EMAIL PROTECTED]> wrote:
close to real time constraints? For example is it possible to develop a
python program that can address an interrupt or execute an operation
wit
On Tue, Oct 7, 2008 at 9:25 AM, Blubaugh, David A. <[EMAIL PROTECTED]> wrote:
> close to real time constraints? For example is it possible to develop a
> python program that can address an interrupt or execute an operation
> within 70 Hz or less?? Are there any additional considerations that I
> sh
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