memory_limiter does not detect configured memory limits when enforcing container memory limig

[gautam-nutalapati]

I am running otel collector as a sidecar in docker containers in EC2 backed ECS.
After setting a container memory limit as 100 MiB, memory_limiter keeps forcing a GC.
memory_limiter configuration is set to "limit_mib": 90 "spike_limit_mib": 75
Using percentage did not work either.

I want to use memory_limiter to limit my otel collector to some meaningful memory, I see in the past, it always used at most 50MiB memory.
Kindly let me know how to ensure memory_limiter detects configured memory limits.
Below are some logs from our otel colelctor which show GC triggered at much lower limit than what is configured.

ADOT Collector version: v0.43.1
Memory limiter configured {"kind": "processor", "name": "memory_limiter", "pipeline": "traces", "limit_mib": 90, "spike_limit_mib": 75, "check_interval": 2}
Metric filter configured {"kind": "processor", "name": "filter/metrics", "pipeline": "metrics", "include match_type": "", "include expressions": [], "include metric names": [], "include metrics with resource attributes": null, "exclude match_type": "strict", "exclude expressions": [], "exclude metric names": ["http_client_duration"], "exclude metrics with resource attributes": null}
Starting aws-otel-collector... {"Version": "v0.43.1", "NumCPU": 2}

...

Memory usage is above soft limit. Forcing a GC. {"kind": "processor", "name": "memory_limiter", "pipeline": "traces", "cur_mem_mib": 21}
Memory usage after GC. {"kind": "processor", "name": "memory_limiter", "pipeline": "traces", "cur_mem_mib": 12}
Memory usage is above soft limit. Forcing a GC. {"kind": "processor", "name": "memory_limiter", "pipeline": "traces", "cur_mem_mib": 25}
Memory usage after GC. {"kind": "processor", "name": "memory_limiter", "pipeline": "traces", "cur_mem_mib": 14}
Memory usage is above soft limit. Forcing a GC. {"kind": "processor", "name": "memory_limiter", "pipeline": "traces", "cur_mem_mib": 24}
Memory usage after GC. {"kind": "processor", "name": "memory_limiter", "pipeline": "traces", "cur_mem_mib": 16}
....