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Subject[PATCH 3/6] perf, tools: Support sorting by in_tx, abort branch flags v3
Date
From: Andi Kleen <ak@linux.intel.com>

Extend the perf branch sorting code to support sorting by in_tx
or abort_tx qualifiers. Also print out those qualifiers.

This also fixes up some of the existing sort key documentation.

We do not support no_tx here, because it's simply not showing
the in_tx flag.

v2: Readd flags to man pages
v3: Rename intx
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/Documentation/perf-report.txt | 4 ++-
tools/perf/Documentation/perf-top.txt | 3 +-
tools/perf/builtin-report.c | 2 +-
tools/perf/builtin-top.c | 3 +-
tools/perf/perf.h | 4 ++-
tools/perf/util/hist.h | 2 ++
tools/perf/util/sort.c | 51 ++++++++++++++++++++++++++++++++
tools/perf/util/sort.h | 2 ++
8 files changed, 66 insertions(+), 5 deletions(-)

diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 2b8097e..ae337e3 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -71,7 +71,7 @@ OPTIONS
entries are displayed as "[other]".
- cpu: cpu number the task ran at the time of sample
- srcline: filename and line number executed at the time of sample. The
- DWARF debuggin info must be provided.
+ DWARF debugging info must be provided.

By default, comm, dso and symbol keys are used.
(i.e. --sort comm,dso,symbol)
@@ -85,6 +85,8 @@ OPTIONS
- symbol_from: name of function branched from
- symbol_to: name of function branched to
- mispredict: "N" for predicted branch, "Y" for mispredicted branch
+ - in_tx: branch in TSX transaction
+ - abort: TSX transaction abort.

And default sort keys are changed to comm, dso_from, symbol_from, dso_to
and symbol_to, see '--branch-stack'.
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index 58d6598..f852eb5 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -112,7 +112,8 @@ Default is to monitor all CPUS.

-s::
--sort::
- Sort by key(s): pid, comm, dso, symbol, parent, srcline, weight, local_weight.
+ Sort by key(s): pid, comm, dso, symbol, parent, srcline, weight,
+ local_weight, abort, in_tx

-n::
--show-nr-samples::
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 8e50d8d..1e84103 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -786,7 +786,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
"sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline,"
" dso_to, dso_from, symbol_to, symbol_from, mispredict,"
" weight, local_weight, mem, symbol_daddr, dso_daddr, tlb, "
- "snoop, locked"),
+ "snoop, locked, abort, in_tx"),
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 2122141..6534a37 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1103,7 +1103,8 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show counter open errors, etc)"),
OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
- "sort by key(s): pid, comm, dso, symbol, parent, weight, local_weight"),
+ "sort by key(s): pid, comm, dso, symbol, parent, weight, local_weight,"
+ " abort, in_tx"),
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.record_opts,
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index cf20187..acf3d66 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -182,7 +182,9 @@ struct ip_callchain {
struct branch_flags {
u64 mispred:1;
u64 predicted:1;
- u64 reserved:62;
+ u64 in_tx:1;
+ u64 abort:1;
+ u64 reserved:60;
};

struct branch_entry {
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 1329b6b..f743e96 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -45,6 +45,8 @@ enum hist_column {
HISTC_CPU,
HISTC_SRCLINE,
HISTC_MISPREDICT,
+ HISTC_IN_TX,
+ HISTC_ABORT,
HISTC_SYMBOL_FROM,
HISTC_SYMBOL_TO,
HISTC_DSO_FROM,
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 5f118a0..1771566 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -858,6 +858,55 @@ struct sort_entry sort_mem_snoop = {
.se_width_idx = HISTC_MEM_SNOOP,
};

+static int64_t
+sort__abort_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+ return left->branch_info->flags.abort !=
+ right->branch_info->flags.abort;
+}
+
+static int hist_entry__abort_snprintf(struct hist_entry *self, char *bf,
+ size_t size, unsigned int width)
+{
+ static const char *out = ".";
+
+ if (self->branch_info->flags.abort)
+ out = "A";
+ return repsep_snprintf(bf, size, "%-*s", width, out);
+}
+
+struct sort_entry sort_abort = {
+ .se_header = "Transaction abort",
+ .se_cmp = sort__abort_cmp,
+ .se_snprintf = hist_entry__abort_snprintf,
+ .se_width_idx = HISTC_ABORT,
+};
+
+static int64_t
+sort__in_tx_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+ return left->branch_info->flags.in_tx !=
+ right->branch_info->flags.in_tx;
+}
+
+static int hist_entry__in_tx_snprintf(struct hist_entry *self, char *bf,
+ size_t size, unsigned int width)
+{
+ static const char *out = ".";
+
+ if (self->branch_info->flags.in_tx)
+ out = "T";
+
+ return repsep_snprintf(bf, size, "%-*s", width, out);
+}
+
+struct sort_entry sort_in_tx = {
+ .se_header = "Branch in transaction",
+ .se_cmp = sort__in_tx_cmp,
+ .se_snprintf = hist_entry__in_tx_snprintf,
+ .se_width_idx = HISTC_IN_TX,
+};
+
struct sort_dimension {
const char *name;
struct sort_entry *entry;
@@ -888,6 +937,8 @@ static struct sort_dimension bstack_sort_dimensions[] = {
DIM(SORT_SYM_FROM, "symbol_from", sort_sym_from),
DIM(SORT_SYM_TO, "symbol_to", sort_sym_to),
DIM(SORT_MISPREDICT, "mispredict", sort_mispredict),
+ DIM(SORT_IN_TX, "in_tx", sort_in_tx),
+ DIM(SORT_ABORT, "abort", sort_abort),
};

#undef DIM
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 4e80dbd..9dad3a0 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -153,6 +153,8 @@ enum sort_type {
SORT_SYM_FROM,
SORT_SYM_TO,
SORT_MISPREDICT,
+ SORT_ABORT,
+ SORT_IN_TX,

/* memory mode specific sort keys */
__SORT_MEMORY_MODE,
--
1.8.3.1


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