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martinsumner 61c6269200 Penciller back-pressure - Phase 1
There were issues with how the Penciller behaves under ehavy write
pressure - most particularly where there are a large number of keys per
update (i.e. 2i heavy objects).   Most immediately the attempt to chekc
whether the l0 file was ready slowed down the process of producing the
L0 file - so back-pressure created more back-pressure.

Going forward want to alter this most significantly as also the work
queue can build up unsustainably. there needs to be some pausing
prompted by the bookie on 'returned', and the use of 'returend when the
work queue exceeds a threshold.
2016-11-05 11:22:27 +00:00
include Penciller back-pressure - Phase 1 2016-11-05 11:22:27 +00:00
src Penciller back-pressure - Phase 1 2016-11-05 11:22:27 +00:00
test Speed up query count test 2016-11-04 18:20:00 +00:00
.gitignore Dialyzer changes 2016-09-20 10:17:24 +01:00
LICENSE Initial commit 2015-04-30 09:56:16 +01:00
README.md Initial commit 2015-04-30 09:56:16 +01:00
rebar.lock Dialyzer changes 2016-09-20 10:17:24 +01:00

eleveleddb

Experiment for learning more about LSM trees