==== Agenda ====

  * Introduction
  * Callouts at fast level
  * Callouts at slow level
  * Callouts and locking
  * Stopping callouts
  * Draining callouts w/o locks
  * Draining callouts w/ locks
  * Callout drain async
  * Interaction with «struct thread»
  * About projects/hps_head
  * Questions / Discussion

==== Relevant links ====

[[https://reviews.freebsd.org/D3521]]

==== Documents ====

{{devsummit/201510/callout/callout2015.pdf?linkonly|callout2015.pdf}}

==== Attendees ====

^ Name ^ Username / Affiliation ^ Topics of Interest ^ Notes ^
| [[/HansPetterSelasky|HansPetterSelasky]] | hps |  | Session host |
| [[/FabienThomas|FabienThomas]] | fabient |  |  |