Messages in this thread | | | Date | Thu, 21 Apr 2016 13:49:55 -0400 (EDT) | Subject | Re: [PATCH net-next] perf, bpf: minimize the size of perf_trace_() tracepoint handler | From | David Miller <> |
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From: Alexei Starovoitov <ast@fb.com> Date: Mon, 18 Apr 2016 20:11:50 -0700
> move trace_call_bpf() into helper function to minimize the size > of perf_trace_*() tracepoint handlers. > text data bss dec hex filename > 10541679 5526646 2945024 19013349 1221ee5 vmlinux_before > 10509422 5526646 2945024 18981092 121a0e4 vmlinux_after > > It may seem that perf_fetch_caller_regs() can also be moved, > but that is incorrect, since ip/sp will be wrong. > > bpf+tracepoint performance is not affected, since > perf_swevent_put_recursion_context() is now inlined. > export_symbol_gpl can also be dropped. > > No measurable change in normal perf tracepoints. > > Suggested-by: Steven Rostedt <rostedt@goodmis.org> > Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Applied, thanks Alexei.
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