On 6/19/15 7:00 AM, Daniel Wagner wrote:
BPF offers another way to generate latency histograms. We attach kprobes at trace_preempt_off and trace_preempt_on and calculate the time it takes to from seeing the off/on transition.
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Signed-off-by: Daniel Wagner <daniel.wag...@bmw-carit.de>
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With the rebase on net-next no additinal patches are needed and this thing here runs fine.
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samples/bpf/Makefile | 4 ++ samples/bpf/lathist_kern.c | 99 +++++++++++++++++++++++++++++++++++++++++++ samples/bpf/lathist_user.c | 103 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 206 insertions(+) create mode 100644 samples/bpf/lathist_kern.c create mode 100644 samples/bpf/lathist_user.c
Thanks. That's a useful example. Acked-by: Alexei Starovoitov <a...@plumgrid.com> Dave, this patch is for net-next and I hope it's not too late for this merge window. -- To unsubscribe from this list: send the line "unsubscribe netdev" in
