Messages in this thread | | | From | Wang Nan <> | Subject | [RFC PATCH 0/7] perf tools: Config BPF maps through perf cmdline | Date | Sat, 17 Oct 2015 10:48:23 +0000 |
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This patch set is based on commit d2f820885d8e ("perf tools: Pass available CPU number to clang compiler") in my git tree [1]. It replaces the old four patches in the git tree with improved solution.
In these 7 patches:
1. perf is able to put values into map: # perf record -e mybpf.c/maps.values.value=1234/ ...
2. perf is able to control different slots in a map separately: # perf record -e mybpf.c/maps.values.value[1,4-6]=1234,maps.values.value[0,2-3]=5678/ ...
3. The second syntax can be applied to perf event also: # perf record -v -a -e evt=cycles -e mybpf.c/maps.pmu_map.event[0]=evt/ ...
4. Compatible with the old syntax: # perf record -v -a -e evt=cycles -e mybpf.c/maps.pmu_map.event=evt/ ...
[1] git://git.kernel.org/pub/scm/linux/kernel/git/pi3orama/linux.git perf/ebpf
He Kuang (1): perf record: Apply config to BPF objects before recording
Wang Nan (6): perf tools: Add API to config maps in bpf object perf tools: Add API to apply config to BPF map perf tools: Enable BPF object configure syntax perf tools: Support setting different slots in a BPF map separately perf tools: Enable indics setting syntax for BPF maps perf tools: Enable passing event to BPF object
tools/perf/builtin-record.c | 11 + tools/perf/util/bpf-loader.c | 515 +++++++++++++++++++++++++++++++++++++++++ tools/perf/util/bpf-loader.h | 42 ++++ tools/perf/util/parse-events.c | 60 ++++- tools/perf/util/parse-events.h | 5 +- tools/perf/util/parse-events.l | 11 + tools/perf/util/parse-events.y | 113 ++++++++- 7 files changed, 748 insertions(+), 9 deletions(-)
-- 1.8.3.4
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