# TraceConfig Object

* `recording_mode` String (optional) - one of "record-until-full" | "record-continuously" | "record-as-much-as-possible" | "trace-to-console". Defaults to "record-until-full".
* `trace_buffer_size_in_kb` number (optional) - maximum size of the trace
  recording buffer in kilobytes. Defaults to 100MB.
* `trace_buffer_size_in_events` number (optional) - maximum size of the trace
  recording buffer in events.
* `enable_argument_filter` boolean (optional) - if true, filter event data
  according to a whitelist of events that have been manually vetted to not
  include any PII. See [the implementation in
  Chromium][trace_event_args_whitelist.cc] for specifics.
* `included_categories` String[] (optional) - a list of tracing categories to
  include. Can include glob-like patterns using `*` at the end of the category
  name. See [tracing categories][] for the list of categories.
* `excluded_categories` String[] (optional) - a list of tracing categories to
  exclude. Can include glob-like patterns using `*` at the end of the category
  name. See [tracing categories][] for the list of categories.
* `included_process_ids` number[] (optional) - a list of process IDs to
  include in the trace. If not specified, trace all processes.
* `histogram_names` String[] (optional) - a list of [histogram][] names to report
  with the trace.
* `memory_dump_config` Object (optional) - if the
  `disabled-by-default-memory-infra` category is enabled, this contains
  optional additional configuration for data collection. See the [Chromium
  memory-infra docs][memory-infra docs] for more information.

An example TraceConfig that roughly matches what Chrome DevTools records:

```js
{
  recording_mode: 'record-until-full',
  included_categories: [
    'devtools.timeline',
    'disabled-by-default-devtools.timeline',
    'disabled-by-default-devtools.timeline.frame',
    'disabled-by-default-devtools.timeline.stack',
    'v8.execute',
    'blink.console',
    'blink.user_timing',
    'latencyInfo',
    'disabled-by-default-v8.cpu_profiler',
    'disabled-by-default-v8.cpu_profiler.hires'
  ],
  excluded_categories: [ '*' ]
}
```

[tracing categories]: https://chromium.googlesource.com/chromium/src/+/master/base/trace_event/builtin_categories.h
[memory-infra docs]: https://chromium.googlesource.com/chromium/src/+/master/docs/memory-infra/memory_infra_startup_tracing.md#the-advanced-way
[trace_event_args_whitelist.cc]: https://chromium.googlesource.com/chromium/src/+/master/services/tracing/public/cpp/trace_event_args_whitelist.cc
[histogram]: https://chromium.googlesource.com/chromium/src.git/+/HEAD/tools/metrics/histograms/README.md