[PATCH 10/12] perf script: Add support for PERF_SAMPLE_CODE_PAGE_SIZE

kan.liang
2020-11-17T19:58:03Z

From: Stephane Eranian <eranian@google.com>

Display sampled code page sizes when PERF_SAMPLE_CODE_PAGE_SIZE was set.

For example,
perf script --fields comm,event,ip,code_page_size
dtlb mem-loads:uP: 445777 4K
dtlb mem-loads:uP: 40f724 4K
dtlb mem-loads:uP: 474926 4K
dtlb mem-loads:uP: 401075 4K
dtlb mem-loads:uP: 401095 4K
dtlb mem-loads:uP: 401095 4K
dtlb mem-loads:uP: 4010cc 4K
dtlb mem-loads:uP: 440b6f 4K

Signed-off-by: Stephane Eranian <eranian@google.com>
---
tools/perf/Documentation/perf-script.txt | 2 +-
tools/perf/builtin-script.c | 13 +++++++++++--
tools/perf/util/session.c | 3 +++
3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index ac4755727ca1..714b901f9d50 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -118,7 +118,7 @@ OPTIONS
comm, tid, pid, time, cpu, event, trace, ip, sym, dso, addr, symoff,
srcline, period, iregs, uregs, brstack, brstacksym, flags, bpf-output,
brstackinsn, brstackoff, callindent, insn, insnlen, synth, phys_addr,
- metric, misc, srccode, ipc, data_page_size.
+ metric, misc, srccode, ipc, data_page_size, code_page_size.
Field list can be prepended with the type, trace, sw or hw,
to indicate to which event type the field list applies.
e.g., -F sw:comm,tid,time,ip,sym and -F trace:time,cpu,trace
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index a02a820398d7..24839b050afb 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -117,6 +117,7 @@ enum perf_output_field {
PERF_OUTPUT_IPC = 1ULL << 31,
PERF_OUTPUT_TOD = 1ULL << 32,
PERF_OUTPUT_DATA_PAGE_SIZE = 1ULL << 33,
+ PERF_OUTPUT_CODE_PAGE_SIZE = 1ULL << 34,
};

struct perf_script {
@@ -182,6 +183,7 @@ struct output_option {
{.str = "ipc", .field = PERF_OUTPUT_IPC},
{.str = "tod", .field = PERF_OUTPUT_TOD},
{.str = "data_page_size", .field = PERF_OUTPUT_DATA_PAGE_SIZE},
+ {.str = "code_page_size", .field = PERF_OUTPUT_CODE_PAGE_SIZE},
};

enum {
@@ -255,7 +257,7 @@ static struct {
PERF_OUTPUT_DSO | PERF_OUTPUT_PERIOD |
PERF_OUTPUT_ADDR | PERF_OUTPUT_DATA_SRC |
PERF_OUTPUT_WEIGHT | PERF_OUTPUT_PHYS_ADDR |
- PERF_OUTPUT_DATA_PAGE_SIZE,
+ PERF_OUTPUT_DATA_PAGE_SIZE | PERF_OUTPUT_CODE_PAGE_SIZE,

.invalid_fields = PERF_OUTPUT_TRACE | PERF_OUTPUT_BPF_OUTPUT,
},
@@ -507,6 +509,10 @@ static int evsel__check_attr(struct evsel *evsel, struct perf_session *session)
evsel__check_stype(evsel, PERF_SAMPLE_DATA_PAGE_SIZE, "DATA_PAGE_SIZE", PERF_OUTPUT_DATA_PAGE_SIZE))
return -EINVAL;

+ if (PRINT_FIELD(CODE_PAGE_SIZE) &&
+ evsel__check_stype(evsel, PERF_SAMPLE_CODE_PAGE_SIZE, "CODE_PAGE_SIZE", PERF_OUTPUT_CODE_PAGE_SIZE))
+ return -EINVAL;
+
return 0;
}

@@ -2020,6 +2026,9 @@ static void process_event(struct perf_script *script,
if (PRINT_FIELD(DATA_PAGE_SIZE))
fprintf(fp, " %s", get_page_size_name(sample->data_page_size, str));

+ if (PRINT_FIELD(CODE_PAGE_SIZE))
+ fprintf(fp, " %s", get_page_size_name(sample->code_page_size, str));
+
perf_sample__fprintf_ipc(sample, attr, fp);

fprintf(fp, "\n");
@@ -3519,7 +3528,7 @@ int cmd_script(int argc, const char **argv)
"addr,symoff,srcline,period,iregs,uregs,brstack,"
"brstacksym,flags,bpf-output,brstackinsn,brstackoff,"
"callindent,insn,insnlen,synth,phys_addr,metric,misc,ipc,tod,"
- "data_page_size",
+ "data_page_size,code_page_size",
parse_output_fields),
OPT_BOOLEAN('a', "all-cpus", &system_wide,
"system-wide collection from all CPUs"),
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 6335deda28f6..fa6ffa6e0d66 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1307,6 +1307,9 @@ static void dump_sample(struct evsel *evsel, union perf_event *event,
if (sample_type & PERF_SAMPLE_DATA_PAGE_SIZE)
printf(" .. data page size: %s\n", get_page_size_name(sample->data_page_size, str));

+ if (sample_type & PERF_SAMPLE_CODE_PAGE_SIZE)
+ printf(" .. code page size: %s\n", get_page_size_name(sample->code_page_size, str));
+
if (sample_type & PERF_SAMPLE_TRANSACTION)
printf("... transaction: %" PRIx64 "\n", sample->transaction);

--
2.17.1