#20287
89%

Ran 20 May 2026 03:38PM UTC

Jobs 1

Files 658

Run time 2min

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Committed 20 May 2026 03:19PM UTC coverage: 88.846% (-0.02%) from 88.862%

Build # #20287

Build Type

push

github

Committed by

ejona86

Commit Message

xds: Reduce per-endpoint memory from CDS

The locality name is long, so we don't want a different copy for each
endpoint. The PathChains can use a similar amount of memory, so we also
want to share them.

The code no longer re-creates the EAG and Attributes, reducing garbage;
that isn't as important as we're more concerned about retained memory in
steady-state. But there was little reason for the waste, thus the
cleanup.

This fixes a bug for PathChains longer than 2 entries, which was never
triggered as our PathChains are always 2 entries long. Previously the
code would discard all but the first and last entry, with the same
pathChain.next being repeatedly overwritten.

Noticed the memory use when investigating b/507652503.

Coverage Stats

36466 of 41044 relevant lines covered (88.85%)

0.89 hits per line

Coverage Regressions

Lines	Coverage	∆	File
5	69.83	-4.31%	../servlet/src/main/java/io/grpc/servlet/ServletServerStream.java
4	92.95	0.05%	../xds/src/main/java/io/grpc/xds/CdsLoadBalancer2.java
3	90.21	-1.05%	../core/src/main/java/io/grpc/internal/DelayedClientCall.java
1	96.57	-0.57%	../core/src/main/java/io/grpc/internal/DelayedClientTransport.java
1	87.6	-0.83%	../rls/src/main/java/io/grpc/rls/LinkedHashLruCache.java

Jobs

ID	Job ID	Ran	Files	Coverage
1	#20287.1	20 May 2026 03:38PM UTC	658	88.85

grpc / grpc-java / #20287
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