COK CLEAR CACHE and RECICLE KERNEL

Hi,

by press button  CLEAR CACHE and  RECICLE KERNEL there were log below, please could expalin me more...?  ..what is the meanning of rows below each action

Corrective Actions:

CLEAR CACHE: This will clear internal tools caches for this process. This should reduce the memory footprint of the process and may cause some performance impact until these caches are rebuilt.

RECICLE KERNEL:This will set the pending recycle time to now for this kernel process and will then follow all JDE.INI defined recycling rules when recycling this kernel process. The currently logged-in users in this kernel can continue their work but will not be notified.