and Buffering</strong>. Mixer is designed to accumulate a large amount of transient ephemeral state.</p>
</li>
</ul>
<p>The sidecar proxies that sit next to each service instance in the mesh must necessarily be frugal in terms of memory consumption, which constrains the possible amount of local caching and buffering. Mixer, however, lives independently and can use considerably larger caches and output buffers. Mixer thus acts as a highly-scaled and highly-available second-level cache for the sidecars.</p>
<