Update changelog.

This commit is contained in:
Mike Perry 2010-06-08 01:18:18 -07:00
parent c96206090e
commit 473f0c3ebb

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Timeout learning to use the weighted average of the top N=3 modes. This
should improve the timeout calculation in some cases, and prevent
extremely high timeout values. Bug 1335, bugfix on 0.2.2.2-alpha.
- Implement a filtering step to recompute synthetic build times every time
the timeout changes. Additionally, place a lower cap on synthetic build
times, and allow this cap to be controlled by the consensus. This should
also improve the build time calculations, and should eliminate a case
where Tor was allocating an excessive amount of temporary memory during
timeout calculation. Bugs 1335 and 1245, bugfix on 0.2.2.2-alpha.
- Alter calculation of Pareto distribution parameter 'Alpha' to use a
right censored distribution model. This allows us to remove the synthetic
timeout generation and instead calculate build timeouts using truncated
times. Bugs 1245+1335, bugfix on 0.2.2.2-alpha.
- Keep circuits open (but do not use them) after the circuit timeout for
up until the time corresponding to the 95th percentile on the Pareto CDF
or 60 seconds, whichever is greater. This is done to provide better data
for the new Pareto model. This percentile can be controlled by the
consensus.
o Minor bugfixes:
- Eliminate a case where a circuit build time warning was displayed after
network connectivity resumed.
network connectivity resumed. Bugfix on 0.2.2.2-alpha.
o Minor features:
- Add a TIMEOUT_RATE keyword to the BUILDTIMEOUT_SET control port event,