Wiping the cache partition

"On devices that support seamless updates [Google Pixels], Android basically slipstreams OTAs as it writes the updated partitions, meaning that it can merge in changes without first creating copies. An advantage of this system is that it does away with the need for a dedicated /cache partition. It does not exist on the new Pixel phones and isn't likely to appear on future devices supporting seamless updates."

From post #11

http://forums.androidcentral.com/google-pixel-pixel-xl/737964-wipe-cache-pixel-xl.html#post5581145
 
There is no /cache partition on Pixels. If you're talking about application cache when your apps misbehave, that can be cleared in Settings - Storage - Cached Data - Clear.
No, I meant cache partition. I hadn't heard that there isn't one on the Pixel. Thanks!