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Commit 7ccf4f90 authored by Namhyung Kim's avatar Namhyung Kim Committed by Arnaldo Carvalho de Melo
Browse files

perf hists: Separate out hist print functions 



Separate out those functions into ui/stdio/hist.c. This is required for
upcoming changes.

Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1345438331-20234-2-git-send-email-namhyung@kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent ed7e2c2e

tools/perf/Makefile

+1 −2
Original line number Diff line number Diff line
@@ -404,11 +404,10 @@ LIB_OBJS += $(OUTPUT)util/target.o 
LIB_OBJS += $(OUTPUT)util/rblist.o

LIB_OBJS += $(OUTPUT)util/intlist.o

LIB_OBJS += $(OUTPUT)ui/helpline.o

LIB_OBJS += $(OUTPUT)ui/stdio/hist.o



BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o



BUILTIN_OBJS += $(OUTPUT)builtin-bench.o



# Benchmark modules

BUILTIN_OBJS += $(OUTPUT)bench/sched-messaging.o

BUILTIN_OBJS += $(OUTPUT)bench/sched-pipe.o

tools/perf/ui/stdio/hist.c

0 → 100644
+648 −0
Original line number Diff line number Diff line 
#include <stdio.h>

#include <math.h>



#include "../../util/util.h"

#include "../../util/hist.h"

#include "../../util/sort.h"





static size_t callchain__fprintf_left_margin(FILE *fp, int left_margin)

{

	int i;

	int ret = fprintf(fp, "            ");



	for (i = 0; i < left_margin; i++)

		ret += fprintf(fp, " ");



	return ret;

}



static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask,

					  int left_margin)

{

	int i;

	size_t ret = callchain__fprintf_left_margin(fp, left_margin);



	for (i = 0; i < depth; i++)

		if (depth_mask & (1 << i))

			ret += fprintf(fp, "|          ");

		else

			ret += fprintf(fp, "           ");



	ret += fprintf(fp, "\n");



	return ret;

}



static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_list *chain,

				     int depth, int depth_mask, int period,

				     u64 total_samples, u64 hits,

				     int left_margin)

{

	int i;

	size_t ret = 0;



	ret += callchain__fprintf_left_margin(fp, left_margin);

	for (i = 0; i < depth; i++) {

		if (depth_mask & (1 << i))

			ret += fprintf(fp, "|");

		else

			ret += fprintf(fp, " ");

		if (!period && i == depth - 1) {

			double percent;



			percent = hits * 100.0 / total_samples;

			ret += percent_color_fprintf(fp, "--%2.2f%%-- ", percent);

		} else

			ret += fprintf(fp, "%s", "          ");

	}

	if (chain->ms.sym)

		ret += fprintf(fp, "%s\n", chain->ms.sym->name);

	else

		ret += fprintf(fp, "0x%0" PRIx64 "\n", chain->ip);



	return ret;

}



static struct symbol *rem_sq_bracket;

static struct callchain_list rem_hits;



static void init_rem_hits(void)

{

	rem_sq_bracket = malloc(sizeof(*rem_sq_bracket) + 6);

	if (!rem_sq_bracket) {

		fprintf(stderr, "Not enough memory to display remaining hits\n");

		return;

	}



	strcpy(rem_sq_bracket->name, "[...]");

	rem_hits.ms.sym = rem_sq_bracket;

}



static size_t __callchain__fprintf_graph(FILE *fp, struct rb_root *root,

					 u64 total_samples, int depth,

					 int depth_mask, int left_margin)

{

	struct rb_node *node, *next;

	struct callchain_node *child;

	struct callchain_list *chain;

	int new_depth_mask = depth_mask;

	u64 remaining;

	size_t ret = 0;

	int i;

	uint entries_printed = 0;



	remaining = total_samples;



	node = rb_first(root);

	while (node) {

		u64 new_total;

		u64 cumul;



		child = rb_entry(node, struct callchain_node, rb_node);

		cumul = callchain_cumul_hits(child);

		remaining -= cumul;



		/*

		 * The depth mask manages the output of pipes that show

		 * the depth. We don't want to keep the pipes of the current

		 * level for the last child of this depth.

		 * Except if we have remaining filtered hits. They will

		 * supersede the last child

		 */

		next = rb_next(node);

		if (!next && (callchain_param.mode != CHAIN_GRAPH_REL || !remaining))

			new_depth_mask &= ~(1 << (depth - 1));



		/*

		 * But we keep the older depth mask for the line separator

		 * to keep the level link until we reach the last child

		 */

		ret += ipchain__fprintf_graph_line(fp, depth, depth_mask,

						   left_margin);

		i = 0;

		list_for_each_entry(chain, &child->val, list) {

			ret += ipchain__fprintf_graph(fp, chain, depth,

						      new_depth_mask, i++,

						      total_samples,

						      cumul,

						      left_margin);

		}



		if (callchain_param.mode == CHAIN_GRAPH_REL)

			new_total = child->children_hit;

		else

			new_total = total_samples;



		ret += __callchain__fprintf_graph(fp, &child->rb_root, new_total,

						  depth + 1,

						  new_depth_mask | (1 << depth),

						  left_margin);

		node = next;

		if (++entries_printed == callchain_param.print_limit)

			break;

	}



	if (callchain_param.mode == CHAIN_GRAPH_REL &&

		remaining && remaining != total_samples) {



		if (!rem_sq_bracket)

			return ret;



		new_depth_mask &= ~(1 << (depth - 1));

		ret += ipchain__fprintf_graph(fp, &rem_hits, depth,

					      new_depth_mask, 0, total_samples,

					      remaining, left_margin);

	}



	return ret;

}



static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,

				       u64 total_samples, int left_margin)

{

	struct callchain_node *cnode;

	struct callchain_list *chain;

	u32 entries_printed = 0;

	bool printed = false;

	struct rb_node *node;

	int i = 0;

	int ret = 0;



	/*

	 * If have one single callchain root, don't bother printing

	 * its percentage (100 % in fractal mode and the same percentage

	 * than the hist in graph mode). This also avoid one level of column.

	 */

	node = rb_first(root);

	if (node && !rb_next(node)) {

		cnode = rb_entry(node, struct callchain_node, rb_node);

		list_for_each_entry(chain, &cnode->val, list) {

			/*

			 * If we sort by symbol, the first entry is the same than

			 * the symbol. No need to print it otherwise it appears as

			 * displayed twice.

			 */

			if (!i++ && sort__first_dimension == SORT_SYM)

				continue;

			if (!printed) {

				ret += callchain__fprintf_left_margin(fp, left_margin);

				ret += fprintf(fp, "|\n");

				ret += callchain__fprintf_left_margin(fp, left_margin);

				ret += fprintf(fp, "---");

				left_margin += 3;

				printed = true;

			} else

				ret += callchain__fprintf_left_margin(fp, left_margin);



			if (chain->ms.sym)

				ret += fprintf(fp, " %s\n", chain->ms.sym->name);

			else

				ret += fprintf(fp, " %p\n", (void *)(long)chain->ip);



			if (++entries_printed == callchain_param.print_limit)

				break;

		}

		root = &cnode->rb_root;

	}



	ret += __callchain__fprintf_graph(fp, root, total_samples,

					  1, 1, left_margin);

	ret += fprintf(fp, "\n");



	return ret;

}



static size_t __callchain__fprintf_flat(FILE *fp,

					struct callchain_node *self,

					u64 total_samples)

{

	struct callchain_list *chain;

	size_t ret = 0;



	if (!self)

		return 0;



	ret += __callchain__fprintf_flat(fp, self->parent, total_samples);





	list_for_each_entry(chain, &self->val, list) {

		if (chain->ip >= PERF_CONTEXT_MAX)

			continue;

		if (chain->ms.sym)

			ret += fprintf(fp, "                %s\n", chain->ms.sym->name);

		else

			ret += fprintf(fp, "                %p\n",

					(void *)(long)chain->ip);

	}



	return ret;

}



static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *self,

				      u64 total_samples)

{

	size_t ret = 0;

	u32 entries_printed = 0;

	struct rb_node *rb_node;

	struct callchain_node *chain;



	rb_node = rb_first(self);

	while (rb_node) {

		double percent;



		chain = rb_entry(rb_node, struct callchain_node, rb_node);

		percent = chain->hit * 100.0 / total_samples;



		ret = percent_color_fprintf(fp, "           %6.2f%%\n", percent);

		ret += __callchain__fprintf_flat(fp, chain, total_samples);

		ret += fprintf(fp, "\n");

		if (++entries_printed == callchain_param.print_limit)

			break;



		rb_node = rb_next(rb_node);

	}



	return ret;

}



static size_t hist_entry_callchain__fprintf(struct hist_entry *he,

					    u64 total_samples, int left_margin,

					    FILE *fp)

{

	switch (callchain_param.mode) {

	case CHAIN_GRAPH_REL:

		return callchain__fprintf_graph(fp, &he->sorted_chain, he->period,

						left_margin);

		break;

	case CHAIN_GRAPH_ABS:

		return callchain__fprintf_graph(fp, &he->sorted_chain, total_samples,

						left_margin);

		break;

	case CHAIN_FLAT:

		return callchain__fprintf_flat(fp, &he->sorted_chain, total_samples);

		break;

	case CHAIN_NONE:

		break;

	default:

		pr_err("Bad callchain mode\n");

	}



	return 0;

}



static int hist_entry__pcnt_snprintf(struct hist_entry *he, char *s,

				     size_t size, struct hists *pair_hists,

				     bool show_displacement, long displacement,

				     bool color, u64 total_period)

{

	u64 period, total, period_sys, period_us, period_guest_sys, period_guest_us;

	u64 nr_events;

	const char *sep = symbol_conf.field_sep;

	int ret;



	if (symbol_conf.exclude_other && !he->parent)

		return 0;



	if (pair_hists) {

		period = he->pair ? he->pair->period : 0;

		nr_events = he->pair ? he->pair->nr_events : 0;

		total = pair_hists->stats.total_period;

		period_sys = he->pair ? he->pair->period_sys : 0;

		period_us = he->pair ? he->pair->period_us : 0;

		period_guest_sys = he->pair ? he->pair->period_guest_sys : 0;

		period_guest_us = he->pair ? he->pair->period_guest_us : 0;

	} else {

		period = he->period;

		nr_events = he->nr_events;

		total = total_period;

		period_sys = he->period_sys;

		period_us = he->period_us;

		period_guest_sys = he->period_guest_sys;

		period_guest_us = he->period_guest_us;

	}



	if (total) {

		if (color)

			ret = percent_color_snprintf(s, size,

						     sep ? "%.2f" : "   %6.2f%%",

						     (period * 100.0) / total);

		else

			ret = scnprintf(s, size, sep ? "%.2f" : "   %6.2f%%",

				       (period * 100.0) / total);

		if (symbol_conf.show_cpu_utilization) {

			ret += percent_color_snprintf(s + ret, size - ret,

					sep ? "%.2f" : "   %6.2f%%",

					(period_sys * 100.0) / total);

			ret += percent_color_snprintf(s + ret, size - ret,

					sep ? "%.2f" : "   %6.2f%%",

					(period_us * 100.0) / total);

			if (perf_guest) {

				ret += percent_color_snprintf(s + ret,

						size - ret,

						sep ? "%.2f" : "   %6.2f%%",

						(period_guest_sys * 100.0) /

								total);

				ret += percent_color_snprintf(s + ret,

						size - ret,

						sep ? "%.2f" : "   %6.2f%%",

						(period_guest_us * 100.0) /

								total);

			}

		}

	} else

		ret = scnprintf(s, size, sep ? "%" PRIu64 : "%12" PRIu64 " ", period);



	if (symbol_conf.show_nr_samples) {

		if (sep)

			ret += scnprintf(s + ret, size - ret, "%c%" PRIu64, *sep, nr_events);

		else

			ret += scnprintf(s + ret, size - ret, "%11" PRIu64, nr_events);

	}



	if (symbol_conf.show_total_period) {

		if (sep)

			ret += scnprintf(s + ret, size - ret, "%c%" PRIu64, *sep, period);

		else

			ret += scnprintf(s + ret, size - ret, " %12" PRIu64, period);

	}



	if (pair_hists) {

		char bf[32];

		double old_percent = 0, new_percent = 0, diff;



		if (total > 0)

			old_percent = (period * 100.0) / total;

		if (total_period > 0)

			new_percent = (he->period * 100.0) / total_period;



		diff = new_percent - old_percent;



		if (fabs(diff) >= 0.01)

			scnprintf(bf, sizeof(bf), "%+4.2F%%", diff);

		else

			scnprintf(bf, sizeof(bf), " ");



		if (sep)

			ret += scnprintf(s + ret, size - ret, "%c%s", *sep, bf);

		else

			ret += scnprintf(s + ret, size - ret, "%11.11s", bf);



		if (show_displacement) {

			if (displacement)

				scnprintf(bf, sizeof(bf), "%+4ld", displacement);

			else

				scnprintf(bf, sizeof(bf), " ");



			if (sep)

				ret += scnprintf(s + ret, size - ret, "%c%s", *sep, bf);

			else

				ret += scnprintf(s + ret, size - ret, "%6.6s", bf);

		}

	}



	return ret;

}



int hist_entry__snprintf(struct hist_entry *he, char *s, size_t size,

			 struct hists *hists)

{

	const char *sep = symbol_conf.field_sep;

	struct sort_entry *se;

	int ret = 0;



	list_for_each_entry(se, &hist_entry__sort_list, list) {

		if (se->elide)

			continue;



		ret += scnprintf(s + ret, size - ret, "%s", sep ?: "  ");

		ret += se->se_snprintf(he, s + ret, size - ret,

				       hists__col_len(hists, se->se_width_idx));

	}



	return ret;

}



static int hist_entry__fprintf(struct hist_entry *he, size_t size,

			       struct hists *hists, struct hists *pair_hists,

			       bool show_displacement, long displacement,

			       u64 total_period, FILE *fp)

{

	char bf[512];

	int ret;



	if (size == 0 || size > sizeof(bf))

		size = sizeof(bf);



	ret = hist_entry__pcnt_snprintf(he, bf, size, pair_hists,

					show_displacement, displacement,

					true, total_period);

	hist_entry__snprintf(he, bf + ret, size - ret, hists);

	return fprintf(fp, "%s\n", bf);

}



static size_t hist_entry__fprintf_callchain(struct hist_entry *he,

					    struct hists *hists,

					    u64 total_period, FILE *fp)

{

	int left_margin = 0;



	if (sort__first_dimension == SORT_COMM) {

		struct sort_entry *se = list_first_entry(&hist_entry__sort_list,

							 typeof(*se), list);

		left_margin = hists__col_len(hists, se->se_width_idx);

		left_margin -= thread__comm_len(he->thread);

	}



	return hist_entry_callchain__fprintf(he, total_period, left_margin, fp);

}



size_t hists__fprintf(struct hists *hists, struct hists *pair,

		      bool show_displacement, bool show_header, int max_rows,

		      int max_cols, FILE *fp)

{

	struct sort_entry *se;

	struct rb_node *nd;

	size_t ret = 0;

	u64 total_period;

	unsigned long position = 1;

	long displacement = 0;

	unsigned int width;

	const char *sep = symbol_conf.field_sep;

	const char *col_width = symbol_conf.col_width_list_str;

	int nr_rows = 0;



	init_rem_hits();



	if (!show_header)

		goto print_entries;



	fprintf(fp, "# %s", pair ? "Baseline" : "Overhead");



	if (symbol_conf.show_cpu_utilization) {

		if (sep) {

			ret += fprintf(fp, "%csys", *sep);

			ret += fprintf(fp, "%cus", *sep);

			if (perf_guest) {

				ret += fprintf(fp, "%cguest sys", *sep);

				ret += fprintf(fp, "%cguest us", *sep);

			}

		} else {

			ret += fprintf(fp, "     sys  ");

			ret += fprintf(fp, "      us  ");

			if (perf_guest) {

				ret += fprintf(fp, "  guest sys  ");

				ret += fprintf(fp, "  guest us  ");

			}

		}

	}



	if (symbol_conf.show_nr_samples) {

		if (sep)

			fprintf(fp, "%cSamples", *sep);

		else

			fputs("  Samples  ", fp);

	}



	if (symbol_conf.show_total_period) {

		if (sep)

			ret += fprintf(fp, "%cPeriod", *sep);

		else

			ret += fprintf(fp, "   Period    ");

	}



	if (pair) {

		if (sep)

			ret += fprintf(fp, "%cDelta", *sep);

		else

			ret += fprintf(fp, "  Delta    ");



		if (show_displacement) {

			if (sep)

				ret += fprintf(fp, "%cDisplacement", *sep);

			else

				ret += fprintf(fp, " Displ");

		}

	}



	list_for_each_entry(se, &hist_entry__sort_list, list) {

		if (se->elide)

			continue;

		if (sep) {

			fprintf(fp, "%c%s", *sep, se->se_header);

			continue;

		}

		width = strlen(se->se_header);

		if (symbol_conf.col_width_list_str) {

			if (col_width) {

				hists__set_col_len(hists, se->se_width_idx,

						   atoi(col_width));

				col_width = strchr(col_width, ',');

				if (col_width)

					++col_width;

			}

		}

		if (!hists__new_col_len(hists, se->se_width_idx, width))

			width = hists__col_len(hists, se->se_width_idx);

		fprintf(fp, "  %*s", width, se->se_header);

	}



	fprintf(fp, "\n");

	if (max_rows && ++nr_rows >= max_rows)

		goto out;



	if (sep)

		goto print_entries;



	fprintf(fp, "# ........");

	if (symbol_conf.show_cpu_utilization)

		fprintf(fp, "   .......   .......");

	if (symbol_conf.show_nr_samples)

		fprintf(fp, " ..........");

	if (symbol_conf.show_total_period)

		fprintf(fp, " ............");

	if (pair) {

		fprintf(fp, " ..........");

		if (show_displacement)

			fprintf(fp, " .....");

	}

	list_for_each_entry(se, &hist_entry__sort_list, list) {

		unsigned int i;



		if (se->elide)

			continue;



		fprintf(fp, "  ");

		width = hists__col_len(hists, se->se_width_idx);

		if (width == 0)

			width = strlen(se->se_header);

		for (i = 0; i < width; i++)

			fprintf(fp, ".");

	}



	fprintf(fp, "\n");

	if (max_rows && ++nr_rows >= max_rows)

		goto out;



	fprintf(fp, "#\n");

	if (max_rows && ++nr_rows >= max_rows)

		goto out;



print_entries:

	total_period = hists->stats.total_period;



	for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {

		struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);



		if (h->filtered)

			continue;



		if (show_displacement) {

			if (h->pair != NULL)

				displacement = ((long)h->pair->position -

					        (long)position);

			else

				displacement = 0;

			++position;

		}

		ret += hist_entry__fprintf(h, max_cols, hists, pair, show_displacement,

					   displacement, total_period, fp);



		if (symbol_conf.use_callchain)

			ret += hist_entry__fprintf_callchain(h, hists, total_period, fp);

		if (max_rows && ++nr_rows >= max_rows)

			goto out;



		if (h->ms.map == NULL && verbose > 1) {

			__map_groups__fprintf_maps(&h->thread->mg,

						   MAP__FUNCTION, verbose, fp);

			fprintf(fp, "%.10s end\n", graph_dotted_line);

		}

	}

out:

	free(rem_sq_bracket);



	return ret;

}



size_t hists__fprintf_nr_events(struct hists *hists, FILE *fp)

{

	int i;

	size_t ret = 0;



	for (i = 0; i < PERF_RECORD_HEADER_MAX; ++i) {

		const char *name;



		if (hists->stats.nr_events[i] == 0)

			continue;



		name = perf_event__name(i);

		if (!strcmp(name, "UNKNOWN"))

			continue;



		ret += fprintf(fp, "%16s events: %10d\n", name,

			       hists->stats.nr_events[i]);

	}



	return ret;

}

tools/perf/util/hist.c

+18 −659

File changed.

Preview size limit exceeded, changes collapsed.

tools/perf/util/hist.h

+2 −0
Original line number Diff line number Diff line
@@ -112,6 +112,8 @@ void hists__filter_by_symbol(struct hists *hists); 
u16 hists__col_len(struct hists *self, enum hist_column col);

void hists__set_col_len(struct hists *self, enum hist_column col, u16 len);

bool hists__new_col_len(struct hists *self, enum hist_column col, u16 len);

void hists__reset_col_len(struct hists *hists);

void hists__calc_col_len(struct hists *hists, struct hist_entry *he);



struct perf_evlist;