but I need a quick demo to see the memory profiling or CPU profiling. I hope a blog or a video which is better for me. Thanks.
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Hi jacktby,
PostgreSQL is literally a large and complicated program in C. Thus it
can be profiled as such. E.g. you can use `perf` and build flamegraphs
using `perf record`. Often pgbench is an adequate tool to compare
before and after results.There are many other tools available
depending on what exactly you want to profile - CPU, lock contention,
disk I/O, etc. People write books (plural) on the subject. Personally
I would recommend "System Performance, Enterprise and the Cloud, 2nd
Edition" and "BPF Performance Tools" by Brendan Gregg.
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Best regards,
Aleksander Alekseev