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Altera_Forum's avatar
Altera_Forum
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15 years ago

Soft realtime with PREEMPT-RT for NIOS II

Dear all, We have made an effort to port PREEMPT-RT on NIOS II. It is possible to use PREEMPT-RT for NIOS II (with MMU) under Linux. PREEMPT-RT is a soft realtime extension for Linux. ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

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Thus while improving the hard realtime capability (max latency) of the Kernel, the "soft" realtime capability (average latency) will be worse.

This it would be perfect to have a switch in the Kernel/System "make" procedure to select either option.

-Michael

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Hi Michael,

There is an interesting discussion on soft vs hard realtime at this time on the RT mailing list.

hard or soft realtime defines in fact a QoS that you offer to your system according to its needs.

Patrice