Re: Scheduling between threads of a same process
Juergen Beisert <jbeisert@xxxxxxxxxxxx> wrote:
Your precision is much appreciated, as is the explanation, which matched
what I understood. But I had under estimated the cost of changing the
memory map on a schedule. Have you any pointers to those costs? Any
timings?
For example ARM (here PXA family): Switching between threads: ~100us,
between processes: 550us. But ARM is very special here (cache at the
virtual address bus, needs flush on vm change).
I'm sure you are right, but hadn't realised the context switch figures
were that high, even on an ARM. Are those timings with the newer CFS?
.
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