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<== Date ==> | <== Thread ==> |
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Subject: | Re: RT linux |
From: | David Kline <[email protected]> |
To: | Emmanuel Mayssat <[email protected]> |
Cc: | TechTalk EPICS <[email protected]> |
Date: | Mon, 10 Sep 2007 12:24:35 -0500 |
hallo, Emmanuel Mayssat wrote: it's free....Hello, I was wondering what would justify moving to RT linux? using the standard linux kernel with the osadl patch addresses interrupt latency issues. i was particularlyI was actually contemplating doing the move to RT myself, but finally decided against it. All RT-required feedback/acquisition/etc are implemented in hardware/electronics. As a result, my IOCs don't have to react Real-Time. But could you describe a "real" situation where RT is necessary? Maybe if you have an IOC which is connected to a device that generate hardware interrupts, etc. but so far I never encountered such a device. interested in that. on the ebrick, i'm using hardware interrupts from the oms pc78-46 module to signal when a motor is done, and other modules supported by the ebrick. Thanks, -- E On Mon, 2007-09-10 at 05:59 -0500, David Kline wrote:you can use >=2.6.18 linux kernel/w patch from osadl (http://www.osadl.org/). that will give you rt behavior. /david Heinrich du Toit wrote:Hi Did somebody else out there use RTLinux for EPICS? -Heinrich -- +-------------------------------------------------+ David M. Kline [email protected] Beamline Controls and Data Acquisition (BCDA) Argonne National Laboratory, Advanced Photon Source Argonne IL, 60439 630.252.8639 --------------------------------------------- Beamlines R Us +-------------------------------------------------+ |