Actually i meant the original sel4 branch. Does it work the same?
On Aug 13, 2016 4:54 PM, Gernot.Heiser@data61.csiro.au wrote:
On 14 Aug 2016, at 9:09 , Norrathep Rattanavipanon nrattana@uci.edu
wrote:
Thanks for the responds.
I have played around a bit with the priority values and just want to
confirm the following:
It seems to be the case that a thread can decrease its own priority
value (assuming it has a capability to do so)
but cannot increase its priority.
I assume you are you using the RT branch?
A thread has an MCP (maximum controlled prio) parameter. It cannot raise any thread’s prio (own or other) higher than its MCP, but it can always decrease. Your thread may have an MCP of zero, which is what most threads should have.
Gernot