Zygo Blaxell e78e05e212 readahead: inject more sanity at the foundation of an insane architecture ...

This solves a third bad problem with bees reads:

3.  The architecture above the read operations will issue read requests
for the same physical blocks over and over in a short period of time.

Fixing that properly requires rewriting the upper-level code, but a
simple small table of recent read requests can reduce the effect of the
problem by orders of magnitude.

Signed-off-by: Zygo Blaxell <bees@furryterror.org>

2024-11-30 23:30:33 -05:00

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