[RFC PATCH 0/7] perf tools: Config BPF maps through perf cmdline
From: Wang Nan
Date: Sat Oct 17 2015 - 06:51:01 EST
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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/