| Message ID | 20230623141546.3751-11-laoar.shao@gmail.com (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | BPF |
| Headers | show |
| Series | bpf: Support ->fill_link_info for kprobe_multi and perf_event links | expand |
2023-06-23 14:15 UTC+0000 ~ Yafang Shao <laoar.shao@gmail.com> > Add new functions and macros to get perf event names. These names are > copied from tool/perf/util/{parse-events,evsel}.c, so that in the future we > will have a good chance to use the same code. > > Suggested-by: Jiri Olsa <olsajiri@gmail.com> > Signed-off-by: Yafang Shao <laoar.shao@gmail.com> > --- > tools/bpf/bpftool/link.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 67 insertions(+) > > diff --git a/tools/bpf/bpftool/link.c b/tools/bpf/bpftool/link.c > index 8461e6d..e5aeee3 100644 > --- a/tools/bpf/bpftool/link.c > +++ b/tools/bpf/bpftool/link.c > @@ -5,6 +5,7 @@ > #include <linux/err.h> > #include <linux/netfilter.h> > #include <linux/netfilter_arp.h> > +#include <linux/perf_event.h> > #include <net/if.h> > #include <stdio.h> > #include <unistd.h> > @@ -19,6 +20,72 @@ > static struct hashmap *link_table; > static struct dump_data dd = {}; > > +static const char *perf_type_name[PERF_TYPE_MAX] = { > + [PERF_TYPE_HARDWARE] = "hardware", > + [PERF_TYPE_SOFTWARE] = "software", > + [PERF_TYPE_TRACEPOINT] = "tracepoint", > + [PERF_TYPE_HW_CACHE] = "hw-cache", > + [PERF_TYPE_RAW] = "raw", > + [PERF_TYPE_BREAKPOINT] = "breakpoint", > +}; These ones (above) are not defined in perf, are they? > + > +const char *event_symbols_hw[PERF_COUNT_HW_MAX] = { > + [PERF_COUNT_HW_CPU_CYCLES] = "cpu-cycles", > + [PERF_COUNT_HW_INSTRUCTIONS] = "instructions", > + [PERF_COUNT_HW_CACHE_REFERENCES] = "cache-references", > + [PERF_COUNT_HW_CACHE_MISSES] = "cache-misses", > + [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = "branch-instructions", > + [PERF_COUNT_HW_BRANCH_MISSES] = "branch-misses", > + [PERF_COUNT_HW_BUS_CYCLES] = "bus-cycles", > + [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = "stalled-cycles-frontend", > + [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = "stalled-cycles-backend", > + [PERF_COUNT_HW_REF_CPU_CYCLES] = "ref-cycles", > +}; > + > +const char *event_symbols_sw[PERF_COUNT_SW_MAX] = { > + [PERF_COUNT_SW_CPU_CLOCK] = "cpu-clock", > + [PERF_COUNT_SW_TASK_CLOCK] = "task-clock", > + [PERF_COUNT_SW_PAGE_FAULTS] = "page-faults", > + [PERF_COUNT_SW_CONTEXT_SWITCHES] = "context-switches", > + [PERF_COUNT_SW_CPU_MIGRATIONS] = "cpu-migrations", > + [PERF_COUNT_SW_PAGE_FAULTS_MIN] = "minor-faults", > + [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = "major-faults", > + [PERF_COUNT_SW_ALIGNMENT_FAULTS] = "alignment-faults", > + [PERF_COUNT_SW_EMULATION_FAULTS] = "emulation-faults", > + [PERF_COUNT_SW_DUMMY] = "dummy", > + [PERF_COUNT_SW_BPF_OUTPUT] = "bpf-output", > + [PERF_COUNT_SW_CGROUP_SWITCHES] = "cgroup-switches", > +}; > + > +const char *evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX] = { > + [PERF_COUNT_HW_CACHE_L1D] = "L1-dcache", > + [PERF_COUNT_HW_CACHE_L1I] = "L1-icache", > + [PERF_COUNT_HW_CACHE_LL] = "LLC", > + [PERF_COUNT_HW_CACHE_DTLB] = "dTLB", > + [PERF_COUNT_HW_CACHE_ITLB] = "iTLB", > + [PERF_COUNT_HW_CACHE_BPU] = "branch", > + [PERF_COUNT_HW_CACHE_NODE] = "node", > +}; > + > +const char *evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX] = { > + [PERF_COUNT_HW_CACHE_OP_READ] = "load", > + [PERF_COUNT_HW_CACHE_OP_WRITE] = "store", > + [PERF_COUNT_HW_CACHE_OP_PREFETCH] = "prefetch", > +}; > + > +const char *evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX] = { > + [PERF_COUNT_HW_CACHE_RESULT_ACCESS] = "refs", > + [PERF_COUNT_HW_CACHE_RESULT_MISS] = "misses", > +}; > + > +#define perf_event_name(array, id) ({ \ > + const char *event_str = NULL; \ > + \ > + if ((id) >= 0 && (id) < ARRAY_SIZE(array)) \ > + event_str = array[id]; \ > + event_str; \ > +}) > + > static int link_parse_fd(int *argc, char ***argv) > { > int fd; Reviewed-by: Quentin Monnet <quentin@isovalent.com>
On Sat, Jun 24, 2023 at 12:49 AM Quentin Monnet <quentin@isovalent.com> wrote: > > 2023-06-23 14:15 UTC+0000 ~ Yafang Shao <laoar.shao@gmail.com> > > Add new functions and macros to get perf event names. These names are > > copied from tool/perf/util/{parse-events,evsel}.c, so that in the future we > > will have a good chance to use the same code. > > > > Suggested-by: Jiri Olsa <olsajiri@gmail.com> > > Signed-off-by: Yafang Shao <laoar.shao@gmail.com> > > --- > > tools/bpf/bpftool/link.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++++ > > 1 file changed, 67 insertions(+) > > > > diff --git a/tools/bpf/bpftool/link.c b/tools/bpf/bpftool/link.c > > index 8461e6d..e5aeee3 100644 > > --- a/tools/bpf/bpftool/link.c > > +++ b/tools/bpf/bpftool/link.c > > @@ -5,6 +5,7 @@ > > #include <linux/err.h> > > #include <linux/netfilter.h> > > #include <linux/netfilter_arp.h> > > +#include <linux/perf_event.h> > > #include <net/if.h> > > #include <stdio.h> > > #include <unistd.h> > > @@ -19,6 +20,72 @@ > > static struct hashmap *link_table; > > static struct dump_data dd = {}; > > > > +static const char *perf_type_name[PERF_TYPE_MAX] = { > > + [PERF_TYPE_HARDWARE] = "hardware", > > + [PERF_TYPE_SOFTWARE] = "software", > > + [PERF_TYPE_TRACEPOINT] = "tracepoint", > > + [PERF_TYPE_HW_CACHE] = "hw-cache", > > + [PERF_TYPE_RAW] = "raw", > > + [PERF_TYPE_BREAKPOINT] = "breakpoint", > > +}; > > These ones (above) are not defined in perf, are they? Right. Will add an explanation in the commit log in the next version. > > > + > > +const char *event_symbols_hw[PERF_COUNT_HW_MAX] = { > > + [PERF_COUNT_HW_CPU_CYCLES] = "cpu-cycles", > > + [PERF_COUNT_HW_INSTRUCTIONS] = "instructions", > > + [PERF_COUNT_HW_CACHE_REFERENCES] = "cache-references", > > + [PERF_COUNT_HW_CACHE_MISSES] = "cache-misses", > > + [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = "branch-instructions", > > + [PERF_COUNT_HW_BRANCH_MISSES] = "branch-misses", > > + [PERF_COUNT_HW_BUS_CYCLES] = "bus-cycles", > > + [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = "stalled-cycles-frontend", > > + [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = "stalled-cycles-backend", > > + [PERF_COUNT_HW_REF_CPU_CYCLES] = "ref-cycles", > > +}; > > + > > +const char *event_symbols_sw[PERF_COUNT_SW_MAX] = { > > + [PERF_COUNT_SW_CPU_CLOCK] = "cpu-clock", > > + [PERF_COUNT_SW_TASK_CLOCK] = "task-clock", > > + [PERF_COUNT_SW_PAGE_FAULTS] = "page-faults", > > + [PERF_COUNT_SW_CONTEXT_SWITCHES] = "context-switches", > > + [PERF_COUNT_SW_CPU_MIGRATIONS] = "cpu-migrations", > > + [PERF_COUNT_SW_PAGE_FAULTS_MIN] = "minor-faults", > > + [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = "major-faults", > > + [PERF_COUNT_SW_ALIGNMENT_FAULTS] = "alignment-faults", > > + [PERF_COUNT_SW_EMULATION_FAULTS] = "emulation-faults", > > + [PERF_COUNT_SW_DUMMY] = "dummy", > > + [PERF_COUNT_SW_BPF_OUTPUT] = "bpf-output", > > + [PERF_COUNT_SW_CGROUP_SWITCHES] = "cgroup-switches", > > +}; > > + > > +const char *evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX] = { > > + [PERF_COUNT_HW_CACHE_L1D] = "L1-dcache", > > + [PERF_COUNT_HW_CACHE_L1I] = "L1-icache", > > + [PERF_COUNT_HW_CACHE_LL] = "LLC", > > + [PERF_COUNT_HW_CACHE_DTLB] = "dTLB", > > + [PERF_COUNT_HW_CACHE_ITLB] = "iTLB", > > + [PERF_COUNT_HW_CACHE_BPU] = "branch", > > + [PERF_COUNT_HW_CACHE_NODE] = "node", > > +}; > > + > > +const char *evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX] = { > > + [PERF_COUNT_HW_CACHE_OP_READ] = "load", > > + [PERF_COUNT_HW_CACHE_OP_WRITE] = "store", > > + [PERF_COUNT_HW_CACHE_OP_PREFETCH] = "prefetch", > > +}; > > + > > +const char *evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX] = { > > + [PERF_COUNT_HW_CACHE_RESULT_ACCESS] = "refs", > > + [PERF_COUNT_HW_CACHE_RESULT_MISS] = "misses", > > +}; > > + > > +#define perf_event_name(array, id) ({ \ > > + const char *event_str = NULL; \ > > + \ > > + if ((id) >= 0 && (id) < ARRAY_SIZE(array)) \ > > + event_str = array[id]; \ > > + event_str; \ > > +}) > > + > > static int link_parse_fd(int *argc, char ***argv) > > { > > int fd; > > Reviewed-by: Quentin Monnet <quentin@isovalent.com>
diff --git a/tools/bpf/bpftool/link.c b/tools/bpf/bpftool/link.c index 8461e6d..e5aeee3 100644 --- a/tools/bpf/bpftool/link.c +++ b/tools/bpf/bpftool/link.c @@ -5,6 +5,7 @@ #include <linux/err.h> #include <linux/netfilter.h> #include <linux/netfilter_arp.h> +#include <linux/perf_event.h> #include <net/if.h> #include <stdio.h> #include <unistd.h> @@ -19,6 +20,72 @@ static struct hashmap *link_table; static struct dump_data dd = {}; +static const char *perf_type_name[PERF_TYPE_MAX] = { + [PERF_TYPE_HARDWARE] = "hardware", + [PERF_TYPE_SOFTWARE] = "software", + [PERF_TYPE_TRACEPOINT] = "tracepoint", + [PERF_TYPE_HW_CACHE] = "hw-cache", + [PERF_TYPE_RAW] = "raw", + [PERF_TYPE_BREAKPOINT] = "breakpoint", +}; + +const char *event_symbols_hw[PERF_COUNT_HW_MAX] = { + [PERF_COUNT_HW_CPU_CYCLES] = "cpu-cycles", + [PERF_COUNT_HW_INSTRUCTIONS] = "instructions", + [PERF_COUNT_HW_CACHE_REFERENCES] = "cache-references", + [PERF_COUNT_HW_CACHE_MISSES] = "cache-misses", + [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = "branch-instructions", + [PERF_COUNT_HW_BRANCH_MISSES] = "branch-misses", + [PERF_COUNT_HW_BUS_CYCLES] = "bus-cycles", + [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = "stalled-cycles-frontend", + [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = "stalled-cycles-backend", + [PERF_COUNT_HW_REF_CPU_CYCLES] = "ref-cycles", +}; + +const char *event_symbols_sw[PERF_COUNT_SW_MAX] = { + [PERF_COUNT_SW_CPU_CLOCK] = "cpu-clock", + [PERF_COUNT_SW_TASK_CLOCK] = "task-clock", + [PERF_COUNT_SW_PAGE_FAULTS] = "page-faults", + [PERF_COUNT_SW_CONTEXT_SWITCHES] = "context-switches", + [PERF_COUNT_SW_CPU_MIGRATIONS] = "cpu-migrations", + [PERF_COUNT_SW_PAGE_FAULTS_MIN] = "minor-faults", + [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = "major-faults", + [PERF_COUNT_SW_ALIGNMENT_FAULTS] = "alignment-faults", + [PERF_COUNT_SW_EMULATION_FAULTS] = "emulation-faults", + [PERF_COUNT_SW_DUMMY] = "dummy", + [PERF_COUNT_SW_BPF_OUTPUT] = "bpf-output", + [PERF_COUNT_SW_CGROUP_SWITCHES] = "cgroup-switches", +}; + +const char *evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX] = { + [PERF_COUNT_HW_CACHE_L1D] = "L1-dcache", + [PERF_COUNT_HW_CACHE_L1I] = "L1-icache", + [PERF_COUNT_HW_CACHE_LL] = "LLC", + [PERF_COUNT_HW_CACHE_DTLB] = "dTLB", + [PERF_COUNT_HW_CACHE_ITLB] = "iTLB", + [PERF_COUNT_HW_CACHE_BPU] = "branch", + [PERF_COUNT_HW_CACHE_NODE] = "node", +}; + +const char *evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX] = { + [PERF_COUNT_HW_CACHE_OP_READ] = "load", + [PERF_COUNT_HW_CACHE_OP_WRITE] = "store", + [PERF_COUNT_HW_CACHE_OP_PREFETCH] = "prefetch", +}; + +const char *evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX] = { + [PERF_COUNT_HW_CACHE_RESULT_ACCESS] = "refs", + [PERF_COUNT_HW_CACHE_RESULT_MISS] = "misses", +}; + +#define perf_event_name(array, id) ({ \ + const char *event_str = NULL; \ + \ + if ((id) >= 0 && (id) < ARRAY_SIZE(array)) \ + event_str = array[id]; \ + event_str; \ +}) + static int link_parse_fd(int *argc, char ***argv) { int fd;
Add new functions and macros to get perf event names. These names are copied from tool/perf/util/{parse-events,evsel}.c, so that in the future we will have a good chance to use the same code. Suggested-by: Jiri Olsa <olsajiri@gmail.com> Signed-off-by: Yafang Shao <laoar.shao@gmail.com> --- tools/bpf/bpftool/link.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+)