Optimizing Linux Memory Management for Low-latency / High-throughput Databases
Optimizing Linux Memory Management for Low-latency / High-throughput Databases Co-author: Cuong Tran Table of Contents Introduction Setting up the context Reproducing and understanding Linux's zone reclaim behavior NUMA memory rebalancing also triggers direct page scans Lessons learned Introduction GraphDB is the storage layer of LinkedIn's real-time distributed social graph service. Our service h
Tuning Java Garbage Collection for Web Services
Since I've been declared the local Java Garbage collection guru[1], I've found myself answering the same kinds of questions over and over. "Why am I getting frequent GC pauses?", "How do I avoid long GC pauses?", "Concurrent mode failure - how bad is that?" In the spirit of teaching people to fish, I thought I'd get together a blog post on how you (yes, you!) can tune the garbage collector for som
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