[PATCH 1/5] perf tools: Count filtered entries to total period also

From: Namhyung Kim
Date: Wed Jan 22 2014 - 18:29:20 EST

Currently if a sample was filtered by command line option, it just
dropped. But this affects final output in that the percentage can be
different since the filtered entries were not included to the total.

But user might want to see the original percentages when filter
applied so change the behavior depends on a new symbol_conf.filter_
relative value in order to be controlled by user later.

Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
---
tools/perf/builtin-report.c | 2 +-
tools/perf/util/event.c | 18 ++++++++----------
tools/perf/util/hist.c | 12 +++---------
tools/perf/util/hist.h | 7 +++++++
tools/perf/util/symbol.c | 1 +
tools/perf/util/symbol.h | 5 +++--
6 files changed, 23 insertions(+), 22 deletions(-)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 3c53ec268fbc..dddacb0056e3 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -229,7 +229,7 @@ static int process_sample_event(struct perf_tool *tool,
return -1;
}

- if (al.filtered || (rep->hide_unresolved && al.sym == NULL))
+ if (rep->hide_unresolved && al.sym == NULL)
return 0;

if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap))
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 1fc1c2f04772..f5a0bcd6be64 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -3,6 +3,7 @@
#include "debug.h"
#include "machine.h"
#include "sort.h"
+#include "hist.h"
#include "string.h"
#include "strlist.h"
#include "thread.h"
@@ -663,7 +664,7 @@ void thread__find_addr_map(struct thread *thread,
al->thread = thread;
al->addr = addr;
al->cpumode = cpumode;
- al->filtered = false;
+ al->filtered = 0;

if (machine == NULL) {
al->map = NULL;
@@ -750,9 +751,6 @@ int perf_event__preprocess_sample(const union perf_event *event,
if (thread == NULL)
return -1;

- if (thread__is_filtered(thread))
- goto out_filtered;
-
dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid);
/*
* Have we already created the kernel maps for this machine?
@@ -767,6 +765,10 @@ int perf_event__preprocess_sample(const union perf_event *event,

thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION,
sample->ip, al);
+
+ if (thread__is_filtered(thread))
+ al->filtered |= (1 << HIST_FILTER__THREAD);
+
dump_printf(" ...... dso: %s\n",
al->map ? al->map->dso->long_name :
al->level == 'H' ? "[hypervisor]" : "<not found>");
@@ -782,7 +784,7 @@ int perf_event__preprocess_sample(const union perf_event *event,
(dso->short_name != dso->long_name &&
strlist__has_entry(symbol_conf.dso_list,
dso->long_name)))))
- goto out_filtered;
+ al->filtered |= (1 << HIST_FILTER__DSO);

al->sym = map__find_symbol(al->map, al->addr,
machine->symbol_filter);
@@ -791,11 +793,7 @@ int perf_event__preprocess_sample(const union perf_event *event,
if (symbol_conf.sym_list &&
(!al->sym || !strlist__has_entry(symbol_conf.sym_list,
al->sym->name)))
- goto out_filtered;
-
- return 0;
+ al->filtered |= (1 << HIST_FILTER__SYMBOL);

-out_filtered:
- al->filtered = true;
return 0;
}
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index e4e6249b87d4..73b999448932 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -13,13 +13,6 @@ static bool hists__filter_entry_by_thread(struct hists *hists,
static bool hists__filter_entry_by_symbol(struct hists *hists,
struct hist_entry *he);

-enum hist_filter {
- HIST_FILTER__DSO,
- HIST_FILTER__THREAD,
- HIST_FILTER__PARENT,
- HIST_FILTER__SYMBOL,
-};
-
struct callchain_param callchain_param = {
.mode = CHAIN_GRAPH_REL,
.min_percent = 0.5,
@@ -329,8 +322,9 @@ void hists__inc_nr_entries(struct hists *hists, struct hist_entry *h)
if (!h->filtered) {
hists__calc_col_len(hists, h);
++hists->nr_entries;
- hists->stats.total_period += h->stat.period;
}
+ if (!h->filtered || !symbol_conf.filter_relative)
+ hists->stats.total_period += h->stat.period;
}

static u8 symbol__parent_filter(const struct symbol *parent)
@@ -429,7 +423,7 @@ struct hist_entry *__hists__add_entry(struct hists *hists,
.weight = weight,
},
.parent = sym_parent,
- .filtered = symbol__parent_filter(sym_parent),
+ .filtered = symbol__parent_filter(sym_parent) | al->filtered,
.hists = hists,
.branch_info = bi,
.mem_info = mi,
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index a59743fa3ef7..7d1d973d9a39 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -14,6 +14,13 @@ struct hist_entry;
struct addr_location;
struct symbol;

+enum hist_filter {
+ HIST_FILTER__DSO,
+ HIST_FILTER__THREAD,
+ HIST_FILTER__PARENT,
+ HIST_FILTER__SYMBOL,
+};
+
/*
* The kernel collects the number of events it couldn't send in a stretch and
* when possible sends this number in a PERF_RECORD_LOST event. The number of
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 39ce9adbaaf0..ac3d9748993c 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -33,6 +33,7 @@ struct symbol_conf symbol_conf = {
.try_vmlinux_path = true,
.annotate_src = true,
.demangle = true,
+ .filter_relative = true,
.symfs = "",
};

diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index fffe2888a1c7..da779b23469b 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -104,7 +104,8 @@ struct symbol_conf {
annotate_asm_raw,
annotate_src,
event_group,
- demangle;
+ demangle,
+ filter_relative;
const char *vmlinux_name,
*kallsyms_name,
*source_prefix,
@@ -175,7 +176,7 @@ struct addr_location {
struct symbol *sym;
u64 addr;
char level;
- bool filtered;
+ u8 filtered;
u8 cpumode;
s32 cpu;
};
--
1.7.11.7

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