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53461e4d94
The introduction of buffer_wq[] in thread_ctx pushed a few fields around
and the cache line alignment is less satisfying. And more importantly, even
before this, all the lists in the local parts were 8-aligned, with the first
one split across two cache lines.
We can do better:
- sched_profile_entry is not atomic at all, the data it points to is
atomic so it doesn't need to be in the atomic-only region, and it can
fill the 8-hole before the lists
- the align(2*void) that was only before tasklets[] moves before all
lists (and it's a nop for now)
This now makes the lists and buffer_wq[] start on a cache line boundary,
leaves 48 bytes after the lists before the atomic-only cache line, and
leaves a full cache line at the end for 128-alignment. This way we still
have plenty of room in both parts with better aligned fields.
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