A thorough introduction to bpftrace
Brendan Gregg
AUGUST 18, 2019
The probe specifies what events to instrument, the filter is optional and can filter down the events based on a boolean expression, and the action is the mini program that runs. The probe is BEGIN , a special probe that runs at the beginning of the program (like awk). Here's hello world: # bpftrace -e 'BEGIN { printf("Hello eBPF!n");
68 
Let's personalize your content