Is there a way to diagnose unexpected flushes of pagecache in RHEL 5?
Issue
- My system is building up pagecache during backups or other operations and then it is suddenly being flushed, causing performance problems.
- What is causing the kernel to suddenly flush page cache?
- My cluster node is experiencing sudden cache flushes which leads to increased CPU usage by
glock_workqueue
Environment
- Red Hat Enterprise Linux (RHEL) 5
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.
Close
Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.