Hi -
In a few contexts, it comes up as to whether it is faster to probe
process syscalls with kprobes or with something higher level such as
utrace. (There are other hypothetical options too (per-syscall
tracepoints) that could be measured this way in the future.)
It was time to check the
Certainly, in general. But in this specific test, only the under-test
system calls occurred in essnetially the whole system, so the overhead
measurements were in a way the bare minimums imposed by the kprobes
vs. utrace callback infrastructure itself.
Yes. That's why I meant to explain how
Frank Ch. Eigler wrote:
Hi -
In a few contexts, it comes up as to whether it is faster to probe
process syscalls with kprobes or with something higher level such as
utrace. (There are other hypothetical options too (per-syscall
tracepoints) that could be measured this way in the future.)
