Commit f87027b9 authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo
Browse files

perf stat: Move shadow stat counters into separate object 



Separating shadow counters code into separate object as a cleanup, but
mainly for upcomming changes, so could use it from script command
context.

Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1433341559-31848-10-git-send-email-jolsa@kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 7a23f57c

tools/perf/builtin-stat.c

+4 −440
Original line number Diff line number Diff line
@@ -102,13 +102,6 @@ static struct target target = { 
	.uid	= UINT_MAX,

};



enum aggr_mode {

	AGGR_NONE,

	AGGR_GLOBAL,

	AGGR_SOCKET,

	AGGR_CORE,

};



static int			run_count			=  1;

static bool			no_inherit			= false;

static bool			scale				=  true;
@@ -234,72 +227,6 @@ out_free: 
	return -1;

}



enum {

	CTX_BIT_USER	= 1 << 0,

	CTX_BIT_KERNEL	= 1 << 1,

	CTX_BIT_HV	= 1 << 2,

	CTX_BIT_HOST	= 1 << 3,

	CTX_BIT_IDLE	= 1 << 4,

	CTX_BIT_MAX	= 1 << 5,

};



#define NUM_CTX CTX_BIT_MAX



static struct stats runtime_nsecs_stats[MAX_NR_CPUS];

static struct stats runtime_cycles_stats[NUM_CTX][MAX_NR_CPUS];

static struct stats runtime_stalled_cycles_front_stats[NUM_CTX][MAX_NR_CPUS];

static struct stats runtime_stalled_cycles_back_stats[NUM_CTX][MAX_NR_CPUS];

static struct stats runtime_branches_stats[NUM_CTX][MAX_NR_CPUS];

static struct stats runtime_cacherefs_stats[NUM_CTX][MAX_NR_CPUS];

static struct stats runtime_l1_dcache_stats[NUM_CTX][MAX_NR_CPUS];

static struct stats runtime_l1_icache_stats[NUM_CTX][MAX_NR_CPUS];

static struct stats runtime_ll_cache_stats[NUM_CTX][MAX_NR_CPUS];

static struct stats runtime_itlb_cache_stats[NUM_CTX][MAX_NR_CPUS];

static struct stats runtime_dtlb_cache_stats[NUM_CTX][MAX_NR_CPUS];

static struct stats runtime_cycles_in_tx_stats[NUM_CTX][MAX_NR_CPUS];

static struct stats walltime_nsecs_stats;

static struct stats runtime_transaction_stats[NUM_CTX][MAX_NR_CPUS];

static struct stats runtime_elision_stats[NUM_CTX][MAX_NR_CPUS];



static int evsel_context(struct perf_evsel *evsel)

{

	int ctx = 0;



	if (evsel->attr.exclude_kernel)

		ctx |= CTX_BIT_KERNEL;

	if (evsel->attr.exclude_user)

		ctx |= CTX_BIT_USER;

	if (evsel->attr.exclude_hv)

		ctx |= CTX_BIT_HV;

	if (evsel->attr.exclude_host)

		ctx |= CTX_BIT_HOST;

	if (evsel->attr.exclude_idle)

		ctx |= CTX_BIT_IDLE;



	return ctx;

}



static void reset_shadow_stats(void)

{

	memset(runtime_nsecs_stats, 0, sizeof(runtime_nsecs_stats));

	memset(runtime_cycles_stats, 0, sizeof(runtime_cycles_stats));

	memset(runtime_stalled_cycles_front_stats, 0, sizeof(runtime_stalled_cycles_front_stats));

	memset(runtime_stalled_cycles_back_stats, 0, sizeof(runtime_stalled_cycles_back_stats));

	memset(runtime_branches_stats, 0, sizeof(runtime_branches_stats));

	memset(runtime_cacherefs_stats, 0, sizeof(runtime_cacherefs_stats));

	memset(runtime_l1_dcache_stats, 0, sizeof(runtime_l1_dcache_stats));

	memset(runtime_l1_icache_stats, 0, sizeof(runtime_l1_icache_stats));

	memset(runtime_ll_cache_stats, 0, sizeof(runtime_ll_cache_stats));

	memset(runtime_itlb_cache_stats, 0, sizeof(runtime_itlb_cache_stats));

	memset(runtime_dtlb_cache_stats, 0, sizeof(runtime_dtlb_cache_stats));

	memset(runtime_cycles_in_tx_stats, 0,

			sizeof(runtime_cycles_in_tx_stats));

	memset(runtime_transaction_stats, 0,

		sizeof(runtime_transaction_stats));

	memset(runtime_elision_stats, 0, sizeof(runtime_elision_stats));

	memset(&walltime_nsecs_stats, 0, sizeof(walltime_nsecs_stats));

}



static void perf_stat__reset_stats(struct perf_evlist *evlist)

{

	struct perf_evsel *evsel;
@@ -309,7 +236,7 @@ static void perf_stat__reset_stats(struct perf_evlist *evlist) 
		perf_evsel__reset_counts(evsel, perf_evsel__nr_cpus(evsel));

	}



	reset_shadow_stats();

	perf_stat__reset_shadow_stats();

}



static int create_perf_stat_counter(struct perf_evsel *evsel)
@@ -346,46 +273,6 @@ static inline int nsec_counter(struct perf_evsel *evsel) 
	return 0;

}



/*

 * Update various tracking values we maintain to print

 * more semantic information such as miss/hit ratios,

 * instruction rates, etc:

 */

static void update_shadow_stats(struct perf_evsel *counter, u64 *count,

				int cpu)

{

	int ctx = evsel_context(counter);



	if (perf_evsel__match(counter, SOFTWARE, SW_TASK_CLOCK))

		update_stats(&runtime_nsecs_stats[cpu], count[0]);

	else if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES))

		update_stats(&runtime_cycles_stats[ctx][cpu], count[0]);

	else if (perf_stat_evsel__is(counter, CYCLES_IN_TX))

		update_stats(&runtime_transaction_stats[ctx][cpu], count[0]);

	else if (perf_stat_evsel__is(counter, TRANSACTION_START))

		update_stats(&runtime_transaction_stats[ctx][cpu], count[0]);

	else if (perf_stat_evsel__is(counter, ELISION_START))

		update_stats(&runtime_elision_stats[ctx][cpu], count[0]);

	else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_FRONTEND))

		update_stats(&runtime_stalled_cycles_front_stats[ctx][cpu], count[0]);

	else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_BACKEND))

		update_stats(&runtime_stalled_cycles_back_stats[ctx][cpu], count[0]);

	else if (perf_evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS))

		update_stats(&runtime_branches_stats[ctx][cpu], count[0]);

	else if (perf_evsel__match(counter, HARDWARE, HW_CACHE_REFERENCES))

		update_stats(&runtime_cacherefs_stats[ctx][cpu], count[0]);

	else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1D))

		update_stats(&runtime_l1_dcache_stats[ctx][cpu], count[0]);

	else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1I))

		update_stats(&runtime_ll_cache_stats[ctx][cpu], count[0]);

	else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_LL))

		update_stats(&runtime_ll_cache_stats[ctx][cpu], count[0]);

	else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_DTLB))

		update_stats(&runtime_dtlb_cache_stats[ctx][cpu], count[0]);

	else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_ITLB))

		update_stats(&runtime_itlb_cache_stats[ctx][cpu], count[0]);

}



static void zero_per_pkg(struct perf_evsel *counter)

{

	if (counter->per_pkg_mask)
@@ -446,7 +333,7 @@ static int read_cb(struct perf_evsel *evsel, int cpu, int thread __maybe_unused, 
		perf_counts_values__scale(count, scale, NULL);

		evsel->counts->cpu[cpu] = *count;

		if (aggr_mode == AGGR_NONE)

			update_shadow_stats(evsel, count->values, cpu);

			perf_stat__update_shadow_stats(evsel, count->values, cpu);

		break;

	case AGGR_GLOBAL:

		aggr->val += count->val;
@@ -494,7 +381,7 @@ static int read_counter_aggr(struct perf_evsel *counter) 
	/*

	 * Save the full runtime - to allow normalization during printout:

	 */

	update_shadow_stats(counter, count, 0);

	perf_stat__update_shadow_stats(counter, count, 0);



	return 0;

}
@@ -872,329 +759,6 @@ static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg) 
		fprintf(output, "                                   ");

}



/* used for get_ratio_color() */

enum grc_type {

	GRC_STALLED_CYCLES_FE,

	GRC_STALLED_CYCLES_BE,

	GRC_CACHE_MISSES,

	GRC_MAX_NR

};



static const char *get_ratio_color(enum grc_type type, double ratio)

{

	static const double grc_table[GRC_MAX_NR][3] = {

		[GRC_STALLED_CYCLES_FE] = { 50.0, 30.0, 10.0 },

		[GRC_STALLED_CYCLES_BE] = { 75.0, 50.0, 20.0 },

		[GRC_CACHE_MISSES] 	= { 20.0, 10.0, 5.0 },

	};

	const char *color = PERF_COLOR_NORMAL;



	if (ratio > grc_table[type][0])

		color = PERF_COLOR_RED;

	else if (ratio > grc_table[type][1])

		color = PERF_COLOR_MAGENTA;

	else if (ratio > grc_table[type][2])

		color = PERF_COLOR_YELLOW;



	return color;

}



static void print_stalled_cycles_frontend(FILE *out, int cpu,

					  struct perf_evsel *evsel

					  __maybe_unused, double avg)

{

	double total, ratio = 0.0;

	const char *color;

	int ctx = evsel_context(evsel);



	total = avg_stats(&runtime_cycles_stats[ctx][cpu]);



	if (total)

		ratio = avg / total * 100.0;



	color = get_ratio_color(GRC_STALLED_CYCLES_FE, ratio);



	fprintf(out, " #  ");

	color_fprintf(out, color, "%6.2f%%", ratio);

	fprintf(out, " frontend cycles idle   ");

}



static void print_stalled_cycles_backend(FILE *out, int cpu,

					 struct perf_evsel *evsel

					 __maybe_unused, double avg)

{

	double total, ratio = 0.0;

	const char *color;

	int ctx = evsel_context(evsel);



	total = avg_stats(&runtime_cycles_stats[ctx][cpu]);



	if (total)

		ratio = avg / total * 100.0;



	color = get_ratio_color(GRC_STALLED_CYCLES_BE, ratio);



	fprintf(out, " #  ");

	color_fprintf(out, color, "%6.2f%%", ratio);

	fprintf(out, " backend  cycles idle   ");

}



static void print_branch_misses(FILE *out, int cpu,

				struct perf_evsel *evsel __maybe_unused,

				double avg)

{

	double total, ratio = 0.0;

	const char *color;

	int ctx = evsel_context(evsel);



	total = avg_stats(&runtime_branches_stats[ctx][cpu]);



	if (total)

		ratio = avg / total * 100.0;



	color = get_ratio_color(GRC_CACHE_MISSES, ratio);



	fprintf(out, " #  ");

	color_fprintf(out, color, "%6.2f%%", ratio);

	fprintf(out, " of all branches        ");

}



static void print_l1_dcache_misses(FILE *out, int cpu,

				   struct perf_evsel *evsel __maybe_unused,

				   double avg)

{

	double total, ratio = 0.0;

	const char *color;

	int ctx = evsel_context(evsel);



	total = avg_stats(&runtime_l1_dcache_stats[ctx][cpu]);



	if (total)

		ratio = avg / total * 100.0;



	color = get_ratio_color(GRC_CACHE_MISSES, ratio);



	fprintf(out, " #  ");

	color_fprintf(out, color, "%6.2f%%", ratio);

	fprintf(out, " of all L1-dcache hits  ");

}



static void print_l1_icache_misses(FILE *out, int cpu,

				   struct perf_evsel *evsel __maybe_unused,

				   double avg)

{

	double total, ratio = 0.0;

	const char *color;

	int ctx = evsel_context(evsel);



	total = avg_stats(&runtime_l1_icache_stats[ctx][cpu]);



	if (total)

		ratio = avg / total * 100.0;



	color = get_ratio_color(GRC_CACHE_MISSES, ratio);



	fprintf(out, " #  ");

	color_fprintf(out, color, "%6.2f%%", ratio);

	fprintf(out, " of all L1-icache hits  ");

}



static void print_dtlb_cache_misses(FILE *out, int cpu,

				    struct perf_evsel *evsel __maybe_unused,

				    double avg)

{

	double total, ratio = 0.0;

	const char *color;

	int ctx = evsel_context(evsel);



	total = avg_stats(&runtime_dtlb_cache_stats[ctx][cpu]);



	if (total)

		ratio = avg / total * 100.0;



	color = get_ratio_color(GRC_CACHE_MISSES, ratio);



	fprintf(out, " #  ");

	color_fprintf(out, color, "%6.2f%%", ratio);

	fprintf(out, " of all dTLB cache hits ");

}



static void print_itlb_cache_misses(FILE *out, int cpu,

				    struct perf_evsel *evsel __maybe_unused,

				    double avg)

{

	double total, ratio = 0.0;

	const char *color;

	int ctx = evsel_context(evsel);



	total = avg_stats(&runtime_itlb_cache_stats[ctx][cpu]);



	if (total)

		ratio = avg / total * 100.0;



	color = get_ratio_color(GRC_CACHE_MISSES, ratio);



	fprintf(out, " #  ");

	color_fprintf(out, color, "%6.2f%%", ratio);

	fprintf(out, " of all iTLB cache hits ");

}



static void print_ll_cache_misses(FILE *out, int cpu,

				  struct perf_evsel *evsel __maybe_unused,

				  double avg)

{

	double total, ratio = 0.0;

	const char *color;

	int ctx = evsel_context(evsel);



	total = avg_stats(&runtime_ll_cache_stats[ctx][cpu]);



	if (total)

		ratio = avg / total * 100.0;



	color = get_ratio_color(GRC_CACHE_MISSES, ratio);



	fprintf(out, " #  ");

	color_fprintf(out, color, "%6.2f%%", ratio);

	fprintf(out, " of all LL-cache hits   ");

}



static void print_shadow_stats(FILE *out, struct perf_evsel *evsel,

			       double avg, int cpu, enum aggr_mode aggr)

{

	double total, ratio = 0.0, total2;

	int ctx = evsel_context(evsel);



	if (perf_evsel__match(evsel, HARDWARE, HW_INSTRUCTIONS)) {

		total = avg_stats(&runtime_cycles_stats[ctx][cpu]);

		if (total) {

			ratio = avg / total;

			fprintf(out, " #   %5.2f  insns per cycle        ", ratio);

		} else {

			fprintf(out, "                                   ");

		}

		total = avg_stats(&runtime_stalled_cycles_front_stats[ctx][cpu]);

		total = max(total, avg_stats(&runtime_stalled_cycles_back_stats[ctx][cpu]));



		if (total && avg) {

			ratio = total / avg;

			fprintf(out, "\n");

			if (aggr == AGGR_NONE)

				fprintf(out, "        ");

			fprintf(out, "                                                  #   %5.2f  stalled cycles per insn", ratio);

		}



	} else if (perf_evsel__match(evsel, HARDWARE, HW_BRANCH_MISSES) &&

			runtime_branches_stats[ctx][cpu].n != 0) {

		print_branch_misses(out, cpu, evsel, avg);

	} else if (

		evsel->attr.type == PERF_TYPE_HW_CACHE &&

		evsel->attr.config ==  ( PERF_COUNT_HW_CACHE_L1D |

					((PERF_COUNT_HW_CACHE_OP_READ) << 8) |

					((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&

			runtime_l1_dcache_stats[ctx][cpu].n != 0) {

		print_l1_dcache_misses(out, cpu, evsel, avg);

	} else if (

		evsel->attr.type == PERF_TYPE_HW_CACHE &&

		evsel->attr.config ==  ( PERF_COUNT_HW_CACHE_L1I |

					((PERF_COUNT_HW_CACHE_OP_READ) << 8) |

					((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&

			runtime_l1_icache_stats[ctx][cpu].n != 0) {

		print_l1_icache_misses(out, cpu, evsel, avg);

	} else if (

		evsel->attr.type == PERF_TYPE_HW_CACHE &&

		evsel->attr.config ==  ( PERF_COUNT_HW_CACHE_DTLB |

					((PERF_COUNT_HW_CACHE_OP_READ) << 8) |

					((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&

			runtime_dtlb_cache_stats[ctx][cpu].n != 0) {

		print_dtlb_cache_misses(out, cpu, evsel, avg);

	} else if (

		evsel->attr.type == PERF_TYPE_HW_CACHE &&

		evsel->attr.config ==  ( PERF_COUNT_HW_CACHE_ITLB |

					((PERF_COUNT_HW_CACHE_OP_READ) << 8) |

					((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&

			runtime_itlb_cache_stats[ctx][cpu].n != 0) {

		print_itlb_cache_misses(out, cpu, evsel, avg);

	} else if (

		evsel->attr.type == PERF_TYPE_HW_CACHE &&

		evsel->attr.config ==  ( PERF_COUNT_HW_CACHE_LL |

					((PERF_COUNT_HW_CACHE_OP_READ) << 8) |

					((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&

			runtime_ll_cache_stats[ctx][cpu].n != 0) {

		print_ll_cache_misses(out, cpu, evsel, avg);

	} else if (perf_evsel__match(evsel, HARDWARE, HW_CACHE_MISSES) &&

			runtime_cacherefs_stats[ctx][cpu].n != 0) {

		total = avg_stats(&runtime_cacherefs_stats[ctx][cpu]);



		if (total)

			ratio = avg * 100 / total;



		fprintf(out, " # %8.3f %% of all cache refs    ", ratio);



	} else if (perf_evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_FRONTEND)) {

		print_stalled_cycles_frontend(out, cpu, evsel, avg);

	} else if (perf_evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_BACKEND)) {

		print_stalled_cycles_backend(out, cpu, evsel, avg);

	} else if (perf_evsel__match(evsel, HARDWARE, HW_CPU_CYCLES)) {

		total = avg_stats(&runtime_nsecs_stats[cpu]);



		if (total) {

			ratio = avg / total;

			fprintf(out, " # %8.3f GHz                    ", ratio);

		} else {

			fprintf(out, "                                   ");

		}

	} else if (perf_stat_evsel__is(evsel, CYCLES_IN_TX)) {

		total = avg_stats(&runtime_cycles_stats[ctx][cpu]);

		if (total)

			fprintf(out,

				" #   %5.2f%% transactional cycles   ",

				100.0 * (avg / total));

	} else if (perf_stat_evsel__is(evsel, CYCLES_IN_TX_CP)) {

		total = avg_stats(&runtime_cycles_stats[ctx][cpu]);

		total2 = avg_stats(&runtime_cycles_in_tx_stats[ctx][cpu]);

		if (total2 < avg)

			total2 = avg;

		if (total)

			fprintf(out,

				" #   %5.2f%% aborted cycles         ",

				100.0 * ((total2-avg) / total));

	} else if (perf_stat_evsel__is(evsel, TRANSACTION_START) &&

		   avg > 0 &&

		   runtime_cycles_in_tx_stats[ctx][cpu].n != 0) {

		total = avg_stats(&runtime_cycles_in_tx_stats[ctx][cpu]);



		if (total)

			ratio = total / avg;



		fprintf(out, " # %8.0f cycles / transaction   ", ratio);

	} else if (perf_stat_evsel__is(evsel, ELISION_START) &&

		   avg > 0 &&

		   runtime_cycles_in_tx_stats[ctx][cpu].n != 0) {

		total = avg_stats(&runtime_cycles_in_tx_stats[ctx][cpu]);



		if (total)

			ratio = total / avg;



		fprintf(out, " # %8.0f cycles / elision       ", ratio);

	} else if (runtime_nsecs_stats[cpu].n != 0) {

		char unit = 'M';



		total = avg_stats(&runtime_nsecs_stats[cpu]);



		if (total)

			ratio = 1000.0 * avg / total;

		if (ratio < 0.001) {

			ratio *= 1000;

			unit = 'K';

		}



		fprintf(out, " # %8.3f %c/sec                  ", ratio, unit);

	} else {

		fprintf(out, "                                   ");

	}

}



static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)

{

	double sc =  evsel->scale;
@@ -1230,7 +794,7 @@ static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg) 
	if (csv_output || interval)

		return;



	print_shadow_stats(output, evsel, avg, cpu, aggr_mode);

	perf_stat__print_shadow_stats(output, evsel, avg, cpu, aggr_mode);

}



static void print_aggr(char *prefix)

tools/perf/util/Build

+1 −0
Original line number Diff line number Diff line
@@ -68,6 +68,7 @@ libperf-y += rblist.o 
libperf-y += intlist.o

libperf-y += vdso.o

libperf-y += stat.o

libperf-y += stat-shadow.o

libperf-y += record.o

libperf-y += srcline.o

libperf-y += data.o

tools/perf/util/stat-shadow.c

0 → 100644
+434 −0

File added.

Preview size limit exceeded, changes collapsed.

tools/perf/util/stat.h

+16 −0
Original line number Diff line number Diff line
@@ -2,6 +2,7 @@ 
#define __PERF_STATS_H



#include <linux/types.h>

#include <stdio.h>



struct stats

{
@@ -23,6 +24,13 @@ struct perf_stat { 
	enum perf_stat_evsel_id	id;

};



enum aggr_mode {

	AGGR_NONE,

	AGGR_GLOBAL,

	AGGR_SOCKET,

	AGGR_CORE,

};



void update_stats(struct stats *stats, u64 val);

double avg_stats(struct stats *stats);

double stddev_stats(struct stats *stats);
@@ -46,4 +54,12 @@ bool __perf_evsel_stat__is(struct perf_evsel *evsel, 


void perf_stat_evsel_id_init(struct perf_evsel *evsel);



extern struct stats walltime_nsecs_stats;



void perf_stat__reset_shadow_stats(void);

void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,

				    int cpu);

void perf_stat__print_shadow_stats(FILE *out, struct perf_evsel *evsel,

				   double avg, int cpu, enum aggr_mode aggr);



#endif

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