source/common/http/conn_manager_impl.cc (4 lines):
	- line 655: // TODO if there are no filters when starting a filter iteration, the connection manager
	- line 712: // TODO: Need to investigate the following code based on the cached route, as may
	- line 1055: // TODO: Start encoding from the last decoder filter that saw the
	- line 1060: // TODO: Start encoding from the last decoder filter that saw the


source/extensions/stat_sinks/hystrix/hystrix.cc (2 lines):
	- line 50: // TODO: Consider if we better use join here
	- line 386: // TODO (@trabetti) : is it ok to send together with data?


source/common/filesystem/filesystem_impl.cc (1 line):
	- line 167: // TODO PERF: Currently, we use a single cross process lock to serialize all disk writes. This


source/common/http/utility.cc (1 line):
	- line 276: // TODO: GrpcMessage should be percent-encoded


source/common/http/http2/codec_impl.cc (1 line):
	- line 776: // TODO PERF: Can reference count here to avoid copies.


source/common/stream_info/filter_state_impl.cc (1 line):
	- line 11: // this TODO will also require an explicit cast from absl::string_view to


source/common/tracing/http_tracer_impl.cc (1 line):
	- line 67: // TODO PERF: Avoid copy.


source/common/http/http1/codec_impl.cc (1 line):
	- line 207: // TODO PERF: It would be better to allow a split reservation. That will make fill code more


source/common/router/router.cc (1 line):
	- line 215: // TODO: Maybe add a filter API for this.


source/extensions/tracers/datadog/datadog_tracer_impl.cc (1 line):
	- line 118: // TODO: Consider adding retries for failed submissions.


tools/format_python_tools.py (1 line):
	- line 17: # TODO: Add ability to collect a specific file or files.


source/common/router/config_impl.cc (1 line):
	- line 974: // TODO (@rshriram) Match Origin header in WebSocket


source/extensions/filters/network/mongo_proxy/proxy.cc (1 line):
	- line 31: // TODO: Parse out the delete/update operation from the commands


source/common/http/conn_manager_utility.cc (1 line):
	- line 276: // TODO: Optimize client_cert_details based on perf analysis (direct string appending may be more