Andreas Mohr wrote:
An entirely different way would be to store the stack base value in a
global variable and update that on each context switch, but it would
increase
context switch overhead and have >= 2 cycles access time for L1 cache
(which
would be the best memory access case!), which would most likely be more
combined overhead than an AGI stall (I was mistaken in declaring the
stall
a pipeline flush - it's only a stall for a couple cycles, not a full
flush
wasting ~ 15 cycles).
That wouldn't work on SMP. You'd need per-cpu variables, which are
likely even slower.
[One way around that would be to use a segment register for the per-cpu
areas]
--
error compiling committee.c: too many arguments to function
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