Merge branch 'perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

tools/perf/Documentation/perf-list.txt

@@ -21,6 +21,8 @@ EVENT MODIFIERS
 Events can optionally have a modifer by appending a colon and one or
 more modifiers.  Modifiers allow the user to restrict when events are
 counted with 'u' for user-space, 'k' for kernel, 'h' for hypervisor.
+Additional modifiers are 'G' for guest counting (in KVM guests) and 'H'
+for host counting (not in KVM guests).
 
 The 'p' modifier can be used for specifying how precise the instruction
 address should be. The 'p' modifier is currently only implemented for

tools/perf/MANIFEST

@@ -1,4 +1,5 @@
 tools/perf
+include/linux/const.h
 include/linux/perf_event.h
 include/linux/rbtree.h
 include/linux/list.h

tools/perf/builtin-kvm.c

@@ -22,9 +22,6 @@
 static const char		*file_name;
 static char			name_buffer[256];
 
-bool				perf_host = 1;
-bool				perf_guest;
-
 static const char * const kvm_usage[] = {
 	"perf kvm [<options>] {top|record|report|diff|buildid-list}",
 	NULL
@@ -107,7 +104,8 @@ static int __cmd_buildid_list(int argc, const char **argv)
 
 int cmd_kvm(int argc, const char **argv, const char *prefix __used)
 {
-	perf_host = perf_guest = 0;
+	perf_host  = 0;
+	perf_guest = 1;
 
 	argc = parse_options(argc, argv, kvm_options, kvm_usage,
 			PARSE_OPT_STOP_AT_NON_OPTION);

tools/perf/builtin-top.c

@@ -235,7 +235,6 @@ static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel,
 	if (he == NULL)
 		return NULL;
 
-	evsel->hists.stats.total_period += sample->period;
 	hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
 	return he;
 }

tools/perf/util/evlist.c

@@ -111,8 +111,11 @@ int perf_evlist__add_default(struct perf_evlist *evlist)
 		.type = PERF_TYPE_HARDWARE,
 		.config = PERF_COUNT_HW_CPU_CYCLES,
 	};
-	struct perf_evsel *evsel = perf_evsel__new(&attr, 0);
+	struct perf_evsel *evsel;
+
+	event_attr_init(&attr);
 
+	evsel = perf_evsel__new(&attr, 0);
 	if (evsel == NULL)
 		goto error;
 

tools/perf/util/hist.c

@@ -76,21 +76,21 @@ static void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
 	}
 }
 
-static void hist_entry__add_cpumode_period(struct hist_entry *self,
+static void hist_entry__add_cpumode_period(struct hist_entry *he,
 					   unsigned int cpumode, u64 period)
 {
 	switch (cpumode) {
 	case PERF_RECORD_MISC_KERNEL:
-		self->period_sys += period;
+		he->period_sys += period;
 		break;
 	case PERF_RECORD_MISC_USER:
-		self->period_us += period;
+		he->period_us += period;
 		break;
 	case PERF_RECORD_MISC_GUEST_KERNEL:
-		self->period_guest_sys += period;
+		he->period_guest_sys += period;
 		break;
 	case PERF_RECORD_MISC_GUEST_USER:
-		self->period_guest_us += period;
+		he->period_guest_us += period;
 		break;
 	default:
 		break;
@@ -165,18 +165,18 @@ void hists__decay_entries_threaded(struct hists *hists,
 static struct hist_entry *hist_entry__new(struct hist_entry *template)
 {
 	size_t callchain_size = symbol_conf.use_callchain ? sizeof(struct callchain_root) : 0;
-	struct hist_entry *self = malloc(sizeof(*self) + callchain_size);
+	struct hist_entry *he = malloc(sizeof(*he) + callchain_size);
 
-	if (self != NULL) {
-		*self = *template;
-		self->nr_events = 1;
-		if (self->ms.map)
-			self->ms.map->referenced = true;
+	if (he != NULL) {
+		*he = *template;
+		he->nr_events = 1;
+		if (he->ms.map)
+			he->ms.map->referenced = true;
 		if (symbol_conf.use_callchain)
-			callchain_init(self->callchain);
+			callchain_init(he->callchain);
 	}
 
-	return self;
+	return he;
 }
 
 static void hists__inc_nr_entries(struct hists *hists, struct hist_entry *h)
@@ -677,15 +677,16 @@ static size_t callchain__fprintf_flat(FILE *fp, struct callchain_node *self,
 	return ret;
 }
 
-static size_t hist_entry_callchain__fprintf(FILE *fp, struct hist_entry *self,
-					    u64 total_samples, int left_margin)
+static size_t hist_entry_callchain__fprintf(struct hist_entry *he,
+					    u64 total_samples, int left_margin,
+					    FILE *fp)
 {
 	struct rb_node *rb_node;
 	struct callchain_node *chain;
 	size_t ret = 0;
 	u32 entries_printed = 0;
 
-	rb_node = rb_first(&self->sorted_chain);
+	rb_node = rb_first(&he->sorted_chain);
 	while (rb_node) {
 		double percent;
 
@@ -730,35 +731,35 @@ void hists__output_recalc_col_len(struct hists *hists, int max_rows)
 	}
 }
 
-static int hist_entry__pcnt_snprintf(struct hist_entry *self, char *s,
+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 session_total)
+				     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 && !self->parent)
+	if (symbol_conf.exclude_other && !he->parent)
 		return 0;
 
 	if (pair_hists) {
-		period = self->pair ? self->pair->period : 0;
-		nr_events = self->pair ? self->pair->nr_events : 0;
+		period = he->pair ? he->pair->period : 0;
+		nr_events = he->pair ? he->pair->nr_events : 0;
 		total = pair_hists->stats.total_period;
-		period_sys = self->pair ? self->pair->period_sys : 0;
-		period_us = self->pair ? self->pair->period_us : 0;
-		period_guest_sys = self->pair ? self->pair->period_guest_sys : 0;
-		period_guest_us = self->pair ? self->pair->period_guest_us : 0;
+		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 = self->period;
-		nr_events = self->nr_events;
-		total = session_total;
-		period_sys = self->period_sys;
-		period_us = self->period_us;
-		period_guest_sys = self->period_guest_sys;
-		period_guest_us = self->period_guest_us;
+		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) {
@@ -812,8 +813,8 @@ static int hist_entry__pcnt_snprintf(struct hist_entry *self, char *s,
 
 		if (total > 0)
 			old_percent = (period * 100.0) / total;
-		if (session_total > 0)
-			new_percent = (self->period * 100.0) / session_total;
+		if (total_period > 0)
+			new_percent = (he->period * 100.0) / total_period;
 
 		diff = new_percent - old_percent;
 
@@ -862,9 +863,10 @@ int hist_entry__snprintf(struct hist_entry *he, char *s, size_t size,
 	return ret;
 }
 
-int hist_entry__fprintf(struct hist_entry *he, size_t size, struct hists *hists,
-			struct hists *pair_hists, bool show_displacement,
-			long displacement, FILE *fp, u64 session_total)
+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;
@@ -874,14 +876,14 @@ int hist_entry__fprintf(struct hist_entry *he, size_t size, struct hists *hists,
 
 	ret = hist_entry__pcnt_snprintf(he, bf, size, pair_hists,
 					show_displacement, displacement,
-					true, session_total);
+					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 *self,
-					    struct hists *hists, FILE *fp,
-					    u64 session_total)
+static size_t hist_entry__fprintf_callchain(struct hist_entry *he,
+					    struct hists *hists,
+					    u64 total_period, FILE *fp)
 {
 	int left_margin = 0;
 
@@ -889,11 +891,10 @@ static size_t hist_entry__fprintf_callchain(struct hist_entry *self,
 		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(self->thread);
+		left_margin -= thread__comm_len(he->thread);
 	}
 
-	return hist_entry_callchain__fprintf(fp, self, session_total,
-					     left_margin);
+	return hist_entry_callchain__fprintf(he, total_period, left_margin, fp);
 }
 
 size_t hists__fprintf(struct hists *hists, struct hists *pair,
@@ -903,6 +904,7 @@ size_t hists__fprintf(struct hists *hists, struct hists *pair,
 	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;
@@ -1025,6 +1027,8 @@ size_t hists__fprintf(struct hists *hists, struct hists *pair,
 		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);
 
@@ -1040,11 +1044,10 @@ print_entries:
 			++position;
 		}
 		ret += hist_entry__fprintf(h, max_cols, hists, pair, show_displacement,
-					   displacement, fp, hists->stats.total_period);
+					   displacement, total_period, fp);
 
 		if (symbol_conf.use_callchain)
-			ret += hist_entry__fprintf_callchain(h, hists, fp,
-							     hists->stats.total_period);
+			ret += hist_entry__fprintf_callchain(h, hists, total_period, fp);
 		if (max_rows && ++nr_rows >= max_rows)
 			goto out;
 

tools/perf/util/hist.h

@@ -66,11 +66,8 @@ struct hists {
 struct hist_entry *__hists__add_entry(struct hists *self,
 				      struct addr_location *al,
 				      struct symbol *parent, u64 period);
-extern int64_t hist_entry__cmp(struct hist_entry *, struct hist_entry *);
-extern int64_t hist_entry__collapse(struct hist_entry *, struct hist_entry *);
-int hist_entry__fprintf(struct hist_entry *he, size_t size, struct hists *hists,
-			struct hists *pair_hists, bool show_displacement,
-			long displacement, FILE *fp, u64 session_total);
+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__snprintf(struct hist_entry *self, char *bf, size_t size,
 			 struct hists *hists);
 void hist_entry__free(struct hist_entry *);

tools/perf/util/parse-events.c

@@ -735,8 +735,8 @@ static int
 parse_event_modifier(const char **strp, struct perf_event_attr *attr)
 {
 	const char *str = *strp;
-	int exclude = 0;
-	int eu = 0, ek = 0, eh = 0, precise = 0;
+	int exclude = 0, exclude_GH = 0;
+	int eu = 0, ek = 0, eh = 0, eH = 0, eG = 0, precise = 0;
 
 	if (!*str)
 		return 0;
@@ -760,6 +760,14 @@ parse_event_modifier(const char **strp, struct perf_event_attr *attr)
 			if (!exclude)
 				exclude = eu = ek = eh = 1;
 			eh = 0;
+		} else if (*str == 'G') {
+			if (!exclude_GH)
+				exclude_GH = eG = eH = 1;
+			eG = 0;
+		} else if (*str == 'H') {
+			if (!exclude_GH)
+				exclude_GH = eG = eH = 1;
+			eH = 0;
 		} else if (*str == 'p') {
 			precise++;
 		} else
@@ -776,6 +784,8 @@ parse_event_modifier(const char **strp, struct perf_event_attr *attr)
 	attr->exclude_kernel = ek;
 	attr->exclude_hv     = eh;
 	attr->precise_ip     = precise;
+	attr->exclude_host   = eH;
+	attr->exclude_guest  = eG;
 
 	return 0;
 }
@@ -838,6 +848,7 @@ int parse_events(struct perf_evlist *evlist , const char *str, int unset __used)
 	for (;;) {
 		ostr = str;
 		memset(&attr, 0, sizeof(attr));
+		event_attr_init(&attr);
 		ret = parse_event_symbols(evlist, &str, &attr);
 		if (ret == EVT_FAILED)
 			return -1;

tools/perf/util/util.c

@@ -1,6 +1,21 @@
+#include "../perf.h"
 #include "util.h"
 #include <sys/mman.h>
 
+/*
+ * XXX We need to find a better place for these things...
+ */
+bool perf_host  = true;
+bool perf_guest = true;
+
+void event_attr_init(struct perf_event_attr *attr)
+{
+	if (!perf_host)
+		attr->exclude_host  = 1;
+	if (!perf_guest)
+		attr->exclude_guest = 1;
+}
+
 int mkdir_p(char *path, mode_t mode)
 {
 	struct stat st;

tools/perf/util/util.h

@@ -242,6 +242,10 @@ int strtailcmp(const char *s1, const char *s2);
 unsigned long convert_unit(unsigned long value, char *unit);
 int readn(int fd, void *buf, size_t size);
 
+struct perf_event_attr;
+
+void event_attr_init(struct perf_event_attr *attr);
+
 #define _STR(x) #x
 #define STR(x) _STR(x)