bpftrace performance question

[the-prachi]

Hi Team - After running some performance tests on bpftrace, it looks like bpftrace process consumes 150 MB of RES memory and 300 MB of VIRT memory in ubuntu 20. Is there a way to optimize the RES memory for smaller machines. I am just running tcp connect.

[danobi]

Hi, stay tuned for AoT bpftrace:

• Proof of concept for AOT #2918
• https://dxuuu.xyz/aot-bpftrace.html

It'll help reduce resource requirements as well as improve startup time

[the-prachi]

Sure, What is the expected completion time for this initiative? How much % memory consumption we expect this will reduce?

[danobi]

Arthur is looking at finishing up the prototype. That should be relatively quick (on the order of months). The long tail is supporting all of bpftrace's features. A lot of features will need to be examined and reworked to support AOT. We plan on prioritizing based on community feedback.

Not sure about exact numbers for memory savings but it should be significant. AOT binaries will not be running LLVM.