[Flaky test][testbed] memory over budget in Trace10kSPS/SAPM-gzip & Trace10kSPSJaegerGRPC

[songy23]

Component(s)

testbed

Describe the issue you're reporting

Trace10kSPS/SAPM-gzip & Trace10kSPSJaegerGRPC keep failing in the load-test. E.g. http://github.com/open-telemetry/opentelemetry-collector-contrib/actions/runs/15442556554/job/43465506584

Test                                    |Result|Duration|CPU Avg%|CPU Max%|CPU Limit|RAM Avg MiB|RAM Max MiB|RAM Limit MiB|Sent Items|Received Items|
----------------------------------------|------|-------:|-------:|-------:|--------:|----------:|----------:|------------:|---------:|-------------:|
Trace10kSPS/OpenCensus                  |PASS  |     15s|    25.9|    27.0|     0.0|         81|         95|          0|    150100|        150100|
Trace10kSPS/OTLP-gRPC                   |PASS  |     15s|    16.4|    18.0|     0.0|         69|         99|          0|    150100|        150100|
Trace10kSPS/OTLP-gRPC-gzip              |PASS  |     15s|    23.1|    24.7|     0.0|         69|         99|          0|    150100|        150100|
Trace10kSPS/OTLP-HTTP                   |PASS  |     15s|     9.1|    11.7|     0.0|         63|         90|          0|    150100|        150100|
Trace10kSPS/OTLP-HTTP-gzip              |PASS  |     15s|    17.3|    19.3|     0.0|         66|         95|          0|    150100|        150100|
Trace10kSPS/OTLP-HTTP-zstd              |PASS  |     15s|    10.3|    13.3|     0.0|         77|        111|          0|    150100|        150100|
Trace10kSPS/SAPM                        |PASS  |     15s|    16.5|    18.3|     0.0|         67|         95|          0|    150100|        150100|
Trace10kSPS/SAPM-gzip                   |FAIL  |     25s|    23.3|    25.3|     0.0|         76|        111|          0|    149300|        149200|RAM consumption is 111 MiB, max expected is 110 MiB
Trace10kSPS/SAPM-zstd                   |PASS  |     15s|    15.9|    19.0|     0.0|        147|        249|          0|    150100|        150100|
Trace10kSPS/Zipkin                      |PASS  |     15s|    55.1|    56.7|     0.0|         68|        100|          0|    150100|        150100|
Trace10kSPSJaegerGRPC                   |FAIL  |     32s|    23.8|    26.0|     0.0|         65|        101|          0|    119400|        119200|RAM consumption is 101 MiB, max expected is 100 MiB

[github-actions]

Pinging code owners:

• testbed: @open-telemetry/collector-approvers

See Adding Labels via Comments if you do not have permissions to add labels yourself.