From: Andi Kleen <a...@linux.intel.com>
Add histogram support for the transaction flags. Each flags instance becomes
a separate histogram. Support sorting and displaying the flags in report
and top.
The patch is fairly large, but it's really mostly just plumbing to pass the
flags around.
v2: Increase column. Fix flags decoding. Use longer strings for flags
to be more user friendly.
Signed-off-by: Andi Kleen <a...@linux.intel.com>
---
tools/perf/builtin-annotate.c | 2 +-
tools/perf/builtin-diff.c | 8 +++--
tools/perf/builtin-report.c | 4 +-
tools/perf/builtin-top.c | 4 +-
tools/perf/util/hist.c | 3 +-
tools/perf/util/hist.h | 3 +-
tools/perf/util/sort.c | 59 +++++++++++++++++++++++++++++++++++++++++
tools/perf/util/sort.h | 2 +
8 files changed, 75 insertions(+), 10 deletions(-)
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 0b9cd0f..5a27016 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -62,7 +62,7 @@ static int perf_evsel__add_sample(struct perf_evsel *evsel,
return 0;
}
- he = __hists__add_entry(&evsel->hists, al, NULL, 1, 1);
+ he = __hists__add_entry(&evsel->hists, al, NULL, 1, 1, 0);
if (he == NULL)
return -ENOMEM;
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 84cdbd1..aebff56 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -249,9 +249,10 @@ int perf_diff__formula(char *buf, size_t size, struct
hist_entry *he)
static int hists__add_entry(struct hists *self,
struct addr_location *al, u64 period,
- u64 weight)
+ u64 weight, u64 transaction)
{
- if (__hists__add_entry(self, al, NULL, period, weight) != NULL)
+ if (__hists__add_entry(self, al, NULL, period, weight, transaction)
+ != NULL)
return 0;
return -ENOMEM;
}
@@ -273,7 +274,8 @@ static int diff__process_sample_event(struct perf_tool
*tool __maybe_unused,
if (al.filtered)
return 0;
- if (hists__add_entry(&evsel->hists, &al, sample->period,
sample->weight)) {
+ if (hists__add_entry(&evsel->hists, &al, sample->period, sample->weight,
+ sample->transaction)) {
pr_warning("problem incrementing symbol period, skipping
event\n");
return -1;
}
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index bd7bb66..c3d3fb7 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -147,7 +147,7 @@ static int perf_evsel__add_hist_entry(struct perf_evsel
*evsel,
}
he = __hists__add_entry(&evsel->hists, al, parent, sample->period,
- sample->weight);
+ sample->weight, sample->transaction);
if (he == NULL)
return -ENOMEM;
@@ -597,7 +597,7 @@ int cmd_report(int argc, const char **argv, const char
*prefix __maybe_unused)
OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
"sort by key(s): pid, comm, dso, symbol, parent, dso_to,"
" dso_from, symbol_to, symbol_from, mispredict, srcline,"
- " abort, intx, weight, local_weight"),
+ " abort, intx, weight, local_weight, transaction"),
OPT_BOOLEAN(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
"Show sample percentage for different cpu modes"),
OPT_STRING('p', "parent", &parent_pattern, "regex",
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index eb4ba1d5..0d2a33d 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -272,7 +272,7 @@ static struct hist_entry *perf_evsel__add_hist_entry(struct
perf_evsel *evsel,
struct hist_entry *he;
he = __hists__add_entry(&evsel->hists, al, NULL, sample->period,
- sample->weight);
+ sample->weight, sample->transaction);
if (he == NULL)
return NULL;
@@ -1229,7 +1229,7 @@ int cmd_top(int argc, const char **argv, const char
*prefix __maybe_unused)
OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
"sort by key(s): pid, comm, dso, symbol, parent, dso_to,"
" dso_from, symbol_to, symbol_from, mispredict, srcline,"
- " abort, intx, weight, local_weight"),
+ " abort, intx, weight, local_weight, transaction"),
OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
"Show a column with the number of samples"),
OPT_CALLBACK_DEFAULT('G', "call-graph", &top, "output_type,min_percent,
call_order",
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index cbedba7..df79b9f 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -359,7 +359,7 @@ struct hist_entry *__hists__add_branch_entry(struct hists
*self,
struct hist_entry *__hists__add_entry(struct hists *self,
struct addr_location *al,
struct symbol *sym_parent, u64 period,
- u64 weight)
+ u64 weight, u64 transaction)
{
struct hist_entry entry = {
.thread = al->thread,
@@ -377,6 +377,7 @@ struct hist_entry *__hists__add_entry(struct hists *self,
.parent = sym_parent,
.filtered = symbol__parent_filter(sym_parent),
.hists = self,
+ .transaction = transaction,
};
return add_hist_entry(self, &entry, al, period, weight);
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index f8b4bca..e70a58e 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -52,6 +52,7 @@ enum hist_column {
HISTC_SRCLINE,
HISTC_WEIGHT,
HISTC_GLOBAL_WEIGHT,
+ HISTC_TRANSACTION,
HISTC_NR_COLS, /* Last entry */
};
@@ -77,7 +78,7 @@ struct hists {
struct hist_entry *__hists__add_entry(struct hists *self,
struct addr_location *al,
struct symbol *parent, u64 period,
- u64 weight);
+ u64 weight, u64 transaction);
int64_t hist_entry__cmp(struct hist_entry *left, struct hist_entry *right);
int64_t hist_entry__collapse(struct hist_entry *left, struct hist_entry
*right);
int hist_entry__sort_snprintf(struct hist_entry *self, char *bf, size_t size,
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index a7a9691..5d20e11 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -568,6 +568,64 @@ struct sort_entry sort_global_weight = {
.se_width_idx = HISTC_GLOBAL_WEIGHT,
};
+static int64_t
+sort__transaction_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+ return left->transaction - right->transaction;
+}
+
+static inline char *add_str(char *p, const char *str)
+{
+ strcpy(p, str);
+ return p + strlen(str);
+}
+
+static struct txbit {
+ unsigned flag;
+ char *name;
+} txbits[] = {
+ { PERF_SAMPLE_TXN_ELISION, "EL " },
+ { PERF_SAMPLE_TXN_TRANSACTION, "TX " },
+ { PERF_SAMPLE_TXN_SYNC, "SYNC " },
+ { PERF_SAMPLE_TXN_ASYNC, "ASYNC " },
+ { PERF_SAMPLE_TXN_RETRY, "RETRY " },
+ { PERF_SAMPLE_TXN_CONFLICT, "CON " },
+ { PERF_SAMPLE_TXN_CAPACITY, "CAP " },
+ { PERF_SAMPLE_TXN_MEMORY, "MEM " },
+ { PERF_SAMPLE_TXN_MISC, "MISC " },
+ {}
+};
+
+static int hist_entry__transaction_snprintf(struct hist_entry *self, char *bf,
+ size_t size, unsigned int width)
+{
+ u64 t = self->transaction;
+ char buf[128];
+ char *p = buf;
+ int i;
+
+ for (i = 0; txbits[i].name; i++)
+ if (txbits[i].flag & t)
+ p = add_str(p, txbits[i].name);
+ if (t && !(t & (PERF_SAMPLE_TXN_SYNC|PERF_SAMPLE_TXN_ASYNC)))
+ p = add_str(p, "NEITHER ");
+ if (t & PERF_SAMPLE_TXN_ABORT_MASK) {
+ sprintf(p, ":%" PRIx64,
+ (t & PERF_SAMPLE_TXN_ABORT_MASK) >>
+ PERF_SAMPLE_TXN_ABORT_SHIFT);
+ p += strlen(p);
+ }
+
+ return repsep_snprintf(bf, size, "%-*s", width, buf);
+}
+
+struct sort_entry sort_transaction = {
+ .se_header = "Transaction ",
+ .se_cmp = sort__transaction_cmp,
+ .se_snprintf = hist_entry__transaction_snprintf,
+ .se_width_idx = HISTC_TRANSACTION,
+};
+
struct sort_dimension {
const char *name;
struct sort_entry *entry;
@@ -593,6 +651,7 @@ static struct sort_dimension sort_dimensions[] = {
DIM(SORT_INTX, "intx", sort_intx),
DIM(SORT_LOCAL_WEIGHT, "local_weight", sort_local_weight),
DIM(SORT_GLOBAL_WEIGHT, "weight", sort_global_weight),
+ DIM(SORT_TRANSACTION, "transaction", sort_transaction),
};
int sort_dimension__add(const char *tok)
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 6628b42..cbcc354 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -82,6 +82,7 @@ struct hist_entry {
struct map_symbol ms;
struct thread *thread;
u64 ip;
+ u64 transaction;
s32 cpu;
struct hist_entry_diff diff;
@@ -123,6 +124,7 @@ enum sort_type {
SORT_INTX,
SORT_LOCAL_WEIGHT,
SORT_GLOBAL_WEIGHT,
+ SORT_TRANSACTION,
};
/*
--
1.7.7.6
--
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