Which block I/O scheduler is the best? We asked eBPF Putting Linux kernel block I/O schedulers under the eBPF microscope eBPF tracing is a broad and deep subject, and can be a bit daunting at first sight. However, when Brendan Gregg issued the dictum “Perhaps you’d like a new year’s resolution: learn eBPF!”, I figured it was as good a time as any to do something fun with it. Here at Circonus, we’v