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Re: aarch64 pmap tweaks for review
On 01/06/2020 23:42, Andrew Doran wrote:
I made some tweaks to the aarch64 pmap based on lessons learned in the x86
pmap recently. They reduce memory consumption and speed up things like
fork/exec/exit/UBC a little:
Approximate times for kernel build on RK3399 with all 6 cores running at
before 1354.07s real 6092.55s user 1591.35s system
after 1307.90s real 6026.60s user 1432.83s system
From a first pass I'm curious why you don't use the low 12 bits of
pv_va for flags and avoid the "interesting" mutex hack?
From memory the pp_flags in ryo's pmap can be removed fairly easily as
well if required.
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