[$] BPF tracing performance

On the final day of the 2024Linux Storage,Filesystem, Memory Management, and BPF Summit, the BPF trackopened with a series of sessions on improving the performance andflexibility of probes and other performance-monitoring tools, in the kernel and inuser space. Jiri Olsa led two sessions about different aspects of probes:making the API for BPF programs attached to a probe more flexible, and makinguser-space probes more efficient.