System shows swap usage even though "smaps" are empty

Solution Unverified - Updated -

Issue

  • System shows swap usage even though there are no "smaps" for any running applications.
  • After swap flush(swapoff/swapon) there is no increase in memory usage ? What data was swap holding?
  • After swap flush why did the system did not swapin all the anonymous pages ?

Environment

  • Red Hat Enterprise Linux

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content