Comment 0 for bug 1328016
Revision history for this message
| Yingying Zhao (yingying-zhao) wrote [Feature] Enable Cache QoS Monitoring | #0 |
© 2004
Canonical Ltd.
•
Terms of use
•
Data privacy
•
Contact Launchpad Support
•
Blog
•
Careers
•
System status
•
bbfa235
(Get the code!)
Cache QoS Monitoring is a new CPU feature found in the Haswell Server family. It provides a mechanism for monitoring cache occupancy usage of tasks running on the CPUs.
Prior to Haswell, there was no mechanism to tell how much of the cache was in use by a task/process, just that a process either caused a cache miss or a cache hit.
This feature can be useful for customers who want to better manage their processing resources. If a user can identify processes that are large consumers of the cache, those processes can either be moved to another system, or the process itself can be investigated for optimizations.
Upstream Schedule:
Kernel:target 3.17
Xen: target 4.5
Target Ubuntu Release: Ubuntu 14.10