On Tue, 18 Nov 2025 17:11:47 +0900
Masami Hiramatsu (Google) [off-list ref] wrote:

quoted

quoted

echo "perf:my_counter=pmu/config=M,config1=N" >> /sys/kernel/tracing/trigger  

Still need a way to add an identifier list. Currently, if the size of
the type identifier is one byte, then it can only support up to 256 events.  

Yes, so if user adds more than that, it will return -ENOSPC.

The issue is that the ids are defined by what is possible, not by what the
user enables.

-- Steve