n> to profile.</li>
        <li>A <dfn data-cite="!ECMA-262#realm">realm</dfn> to profile.</li>
        <li>A <dfn data-cite="!HR-TIME-2#dfn-time-origin">time origin</dfn> that samples' timestamps are measured relative to.</li>
        <li>A <dfn>sample buffer size limit</dfn>.</li>
        <li>A <a>ProfilerTrace</a> storing captured <a>samples</a>.</li>
      </ol>
      <p>
      Multiple profiling sessions on the same page SHOULD be supported.
      </p>
      <section>
        <h2>States</h2>
        <p