%CPU utilization is a lie(brendanlong.com)
396 points by BrendanLong | 135 comments
Blog post by Brendan Long arguing that %CPU utilization reported by tools like top misrepresents how close servers are to their actual capacity limits.
#performance-monitoring on Hacker News
2 stories tagged performance-monitoring, newest first.
Show HN: Xcapture-BPF – like Linux top, but with Xray vision(0x.tools)
421 points by tanelpoder | 38 comments
Homepage for 0x.tools by Tanel Poder, open-source Linux utilities for always-on thread-level profiling, featuring the xcapture-bpf eBPF tool.