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Ran 18 Aug 2020 07:19AM UTC

Files 76

Run time 3s

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Committed 18 Aug 2020 06:05AM UTC coverage: 93.03% (-0.3%) from 93.289%

Job # TERM=dumb ORG_GRADLE_PROJECT_checksumFailOn=build_finish ORG_GRADLE_PROJECT_checksumPrint=true ORG_GRADLE_PROJECT_checksumIgnore=false GROUP=tests

Build Type

push

travis-ci

Committed by

ben-manes

Commit Message

Support simulations of large caches in weighted policy types

In weight-based traces the entries have different sizes, e.g. bytes. The
policies that support this characteristic will evict multiple entries
until at its maximum-size contraint. This was an integer setting which
is too small for the Tencent Photo trace.

The setting was increased to a long and the weighted traces updated
accordingly. The other traces use a checked cast to an int value as a
minimal migration to minimize the chance of introducing bugs. The
linked policy was fixed to handle the entry's weight changing on a
cache hit.

The AdaptSize simulator compatibility was reduced to only its trace
reader. That simulator treats the same key with different weights as
distinct entries, rather than an update. The workaround of hashing
the key and weight as the entry's key causes noticable workload skew.
Since other simulators (like LHD from the same group) don't make this
odd choice, its now restricted to just their trace reader.

Coverage Stats

6113 of 6571 relevant lines covered (93.03%)

0.93 hits per line

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