21904
89%

Ran 12 Apr 2021 10:11PM UTC

Jobs 1

Files 442

Run time 49s

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Build # 21904

Build Type

push

travis-ci

Committed by

web-flow

Commit Message

xds: reduce the size of ring for testing pick distributions (#8079)

In the ring hash LB policy, building the ring is computationally heavy. Although using a larger ring can make the RPC distribution closer to the actual weights of hosts, it takes long time to finish the test.

Internally, each test class is expected to finish within 1 minute, while each of the test cases for testing pick distribution takes about 30 sec. By reducing the ring size by a factor of 10, the time spent for those test cases reduce to 1-2 seconds. Now we need larger tolerance for the distribution (three hosts with weights 1:10:100):

- With a ring size of 100000, the 10000 RPCs distribution is close to 91 : 866 : 9043
- With a ring size of 10000, the 10000 RPCs distribution is close to 104 : 808 : 9088

Roughly, this is still acceptable.

Run Details

26980 of 30610 relevant lines covered (88.14%)

0.88 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	21904.1 (GRADLE_OPTS=-Xmx512m LDFLAGS=-L/tmp/protobuf/lib CXXFLAGS=-I/tmp/protobuf/include LD_LIBRARY_PATH=/tmp/protobuf/lib)	12 Apr 2021 10:11PM UTC	0	88.14	Travis Job 21904.1

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