Why is tuned using /dev/cpu_dma_latency for the throughput-performance profile?

Solution Verified - Updated -

Issue

Why has tuned opened /dev/cpu_dma_latency as seen in the output of lsof?
What is tuned writing to /dev/cpu_dma_latency?

Environment

Red Hat Enterprise Linux 7

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.

Current Customers and Partners

Log in for full access

Log In