TechHacker Newsabout 3 hours ago
How Do I Profile eBPF Code?
1 min read
A C test harness measures file open performance by invoking syscall(SYS_openat) directly, discarding the first 10% of samples as warmup. Perf tool with JIT symbols enabled identifies bottlenecks like bpf_lsm_file_open and its tail calls for optimization.
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