diff --git a/tools/perf/arch/powerpc/util/header.c b/tools/perf/arch/powerpc/util/header.c
index 3b4cdfc5efd65bce12d74b125f5c6dfd85af639e..d4870074f14c714fa409e5f738ad186f3a0942e7 100644
--- a/tools/perf/arch/powerpc/util/header.c
+++ b/tools/perf/arch/powerpc/util/header.c
@@ -7,6 +7,8 @@
 #include <string.h>
 #include <linux/stringify.h>
 #include "header.h"
+#include "metricgroup.h"
+#include <api/fs/fs.h>
 
 #define mfspr(rn)       ({unsigned long rval; \
 			 asm volatile("mfspr %0," __stringify(rn) \
@@ -44,3 +46,9 @@ get_cpuid_str(struct perf_pmu *pmu __maybe_unused)
 
 	return bufp;
 }
+
+int arch_get_runtimeparam(void)
+{
+	int count;
+	return sysfs__read_int("/devices/hv_24x7/interface/sockets", &count) < 0 ? 1 : count;
+}
diff --git a/tools/perf/tests/expr.c b/tools/perf/tests/expr.c
index ea10fc4412c493ffb05c2f6e8edf9210e16338c6..516504cf0ea5b5d605f63f75bd8cf26ac548c135 100644
--- a/tools/perf/tests/expr.c
+++ b/tools/perf/tests/expr.c
@@ -10,7 +10,7 @@ static int test(struct expr_parse_ctx *ctx, const char *e, double val2)
 {
 	double val;
 
-	if (expr__parse(&val, ctx, e))
+	if (expr__parse(&val, ctx, e, 1))
 		TEST_ASSERT_VAL("parse test failed", 0);
 	TEST_ASSERT_VAL("unexpected value", val == val2);
 	return 0;
@@ -44,15 +44,15 @@ int test__expr(struct test *t __maybe_unused, int subtest __maybe_unused)
 		return ret;
 
 	p = "FOO/0";
-	ret = expr__parse(&val, &ctx, p);
+	ret = expr__parse(&val, &ctx, p, 1);
 	TEST_ASSERT_VAL("division by zero", ret == -1);
 
 	p = "BAR/";
-	ret = expr__parse(&val, &ctx, p);
+	ret = expr__parse(&val, &ctx, p, 1);
 	TEST_ASSERT_VAL("missing operand", ret == -1);
 
 	TEST_ASSERT_VAL("find other",
-			expr__find_other("FOO + BAR + BAZ + BOZO", "FOO", &other, &num_other) == 0);
+			expr__find_other("FOO + BAR + BAZ + BOZO", "FOO", &other, &num_other, 1) == 0);
 	TEST_ASSERT_VAL("find other", num_other == 3);
 	TEST_ASSERT_VAL("find other", !strcmp(other[0], "BAR"));
 	TEST_ASSERT_VAL("find other", !strcmp(other[1], "BAZ"));
diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c
index c3382d58cf402cbbecf809c73a02365d09f1d3d5..aa631e37ad1e85710b4b3075afb7ab070ebfd3f3 100644
--- a/tools/perf/util/expr.c
+++ b/tools/perf/util/expr.c
@@ -27,10 +27,11 @@ void expr__ctx_init(struct expr_parse_ctx *ctx)
 
 static int
 __expr__parse(double *val, struct expr_parse_ctx *ctx, const char *expr,
-	      int start)
+	      int start, int runtime)
 {
 	struct expr_scanner_ctx scanner_ctx = {
 		.start_token = start,
+		.runtime = runtime,
 	};
 	YY_BUFFER_STATE buffer;
 	void *scanner;
@@ -54,9 +55,9 @@ __expr__parse(double *val, struct expr_parse_ctx *ctx, const char *expr,
 	return ret;
 }
 
-int expr__parse(double *final_val, struct expr_parse_ctx *ctx, const char *expr)
+int expr__parse(double *final_val, struct expr_parse_ctx *ctx, const char *expr, int runtime)
 {
-	return __expr__parse(final_val, ctx, expr, EXPR_PARSE) ? -1 : 0;
+	return __expr__parse(final_val, ctx, expr, EXPR_PARSE, runtime) ? -1 : 0;
 }
 
 static bool
@@ -74,13 +75,13 @@ already_seen(const char *val, const char *one, const char **other,
 }
 
 int expr__find_other(const char *expr, const char *one, const char ***other,
-		     int *num_other)
+		     int *num_other, int runtime)
 {
 	int err, i = 0, j = 0;
 	struct expr_parse_ctx ctx;
 
 	expr__ctx_init(&ctx);
-	err = __expr__parse(NULL, &ctx, expr, EXPR_OTHER);
+	err = __expr__parse(NULL, &ctx, expr, EXPR_OTHER, runtime);
 	if (err)
 		return -1;
 
diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h
index 0938ad166eceba706e67a1883bd0c7de3281e4f3..87d627bb699b4ce67f19f311acbf45bcdef5b852 100644
--- a/tools/perf/util/expr.h
+++ b/tools/perf/util/expr.h
@@ -17,12 +17,13 @@ struct expr_parse_ctx {
 
 struct expr_scanner_ctx {
 	int start_token;
+	int runtime;
 };
 
 void expr__ctx_init(struct expr_parse_ctx *ctx);
 void expr__add_id(struct expr_parse_ctx *ctx, const char *id, double val);
-int expr__parse(double *final_val, struct expr_parse_ctx *ctx, const char *expr);
+int expr__parse(double *final_val, struct expr_parse_ctx *ctx, const char *expr, int runtime);
 int expr__find_other(const char *expr, const char *one, const char ***other,
-		int *num_other);
+		int *num_other, int runtime);
 
 #endif
diff --git a/tools/perf/util/expr.l b/tools/perf/util/expr.l
index 2582c2464938d853cc0cc79ce164ae178ee5fa15..74b9b59b1aa5c8508639c3e47d2fe2dd0dcb7f12 100644
--- a/tools/perf/util/expr.l
+++ b/tools/perf/util/expr.l
@@ -35,7 +35,7 @@ static int value(yyscan_t scanner, int base)
  * Allow @ instead of / to be able to specify pmu/event/ without
  * conflicts with normal division.
  */
-static char *normalize(char *str)
+static char *normalize(char *str, int runtime)
 {
 	char *ret = str;
 	char *dst = str;
@@ -45,6 +45,19 @@ static char *normalize(char *str)
 			*dst++ = '/';
 		else if (*str == '\\')
 			*dst++ = *++str;
+		 else if (*str == '?') {
+			char *paramval;
+			int i = 0;
+			int size = asprintf(&paramval, "%d", runtime);
+
+			if (size < 0)
+				*dst++ = '0';
+			else {
+				while (i < size)
+					*dst++ = paramval[i++];
+				free(paramval);
+			}
+		}
 		else
 			*dst++ = *str;
 		str++;
@@ -54,16 +67,16 @@ static char *normalize(char *str)
 	return ret;
 }
 
-static int str(yyscan_t scanner, int token)
+static int str(yyscan_t scanner, int token, int runtime)
 {
 	YYSTYPE *yylval = expr_get_lval(scanner);
 	char *text = expr_get_text(scanner);
 
-	yylval->str = normalize(strdup(text));
+	yylval->str = normalize(strdup(text), runtime);
 	if (!yylval->str)
 		return EXPR_ERROR;
 
-	yylval->str = normalize(yylval->str);
+	yylval->str = normalize(yylval->str, runtime);
 	return token;
 }
 %}
@@ -72,8 +85,8 @@ number		[0-9]+
 
 sch		[-,=]
 spec		\\{sch}
-sym		[0-9a-zA-Z_\.:@]+
-symbol		{spec}*{sym}*{spec}*{sym}*
+sym		[0-9a-zA-Z_\.:@?]+
+symbol		{spec}*{sym}*{spec}*{sym}*{spec}*{sym}
 
 %%
 	struct expr_scanner_ctx *sctx = expr_get_extra(yyscanner);
@@ -93,7 +106,7 @@ if		{ return IF; }
 else		{ return ELSE; }
 #smt_on		{ return SMT_ON; }
 {number}	{ return value(yyscanner, 10); }
-{symbol}	{ return str(yyscanner, ID); }
+{symbol}	{ return str(yyscanner, ID, sctx->runtime); }
 "|"		{ return '|'; }
 "^"		{ return '^'; }
 "&"		{ return '&'; }
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index 7ad81c8177eae1f8faab42839f62fc28980f3ac7..b071df373f8b923e5188033f7a1d04a04b50d930 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -90,6 +90,7 @@ struct egroup {
 	const char *metric_name;
 	const char *metric_expr;
 	const char *metric_unit;
+	int runtime;
 };
 
 static struct evsel *find_evsel_group(struct evlist *perf_evlist,
@@ -202,6 +203,7 @@ static int metricgroup__setup_events(struct list_head *groups,
 		expr->metric_name = eg->metric_name;
 		expr->metric_unit = eg->metric_unit;
 		expr->metric_events = metric_events;
+		expr->runtime = eg->runtime;
 		list_add(&expr->nd, &me->head);
 	}
 
@@ -485,15 +487,20 @@ static bool metricgroup__has_constraint(struct pmu_event *pe)
 	return false;
 }
 
+int __weak arch_get_runtimeparam(void)
+{
+	return 1;
+}
+
 static int __metricgroup__add_metric(struct strbuf *events,
-			struct list_head *group_list, struct pmu_event *pe)
+		struct list_head *group_list, struct pmu_event *pe, int runtime)
 {
 
 	const char **ids;
 	int idnum;
 	struct egroup *eg;
 
-	if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum) < 0)
+	if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum, runtime) < 0)
 		return -EINVAL;
 
 	if (events->len > 0)
@@ -513,6 +520,7 @@ static int __metricgroup__add_metric(struct strbuf *events,
 	eg->metric_name = pe->metric_name;
 	eg->metric_expr = pe->metric_expr;
 	eg->metric_unit = pe->unit;
+	eg->runtime = runtime;
 	list_add_tail(&eg->nd, group_list);
 
 	return 0;
@@ -540,7 +548,21 @@ static int metricgroup__add_metric(const char *metric, struct strbuf *events,
 
 			pr_debug("metric expr %s for %s\n", pe->metric_expr, pe->metric_name);
 
-			ret = __metricgroup__add_metric(events,	group_list, pe);
+			if (!strstr(pe->metric_expr, "?")) {
+				ret = __metricgroup__add_metric(events, group_list, pe, 1);
+			} else {
+				int j, count;
+
+				count = arch_get_runtimeparam();
+
+				/* This loop is added to create multiple
+				 * events depend on count value and add
+				 * those events to group_list.
+				 */
+
+				for (j = 0; j < count; j++)
+					ret = __metricgroup__add_metric(events, group_list, pe, j);
+			}
 			if (ret == -ENOMEM)
 				break;
 		}
diff --git a/tools/perf/util/metricgroup.h b/tools/perf/util/metricgroup.h
index 475c7f912864f9ff512cf9d189bed9ed1b4fa7a3..6b09eb30b4ecf8bf0434e3520a4904f14f8da5f7 100644
--- a/tools/perf/util/metricgroup.h
+++ b/tools/perf/util/metricgroup.h
@@ -22,6 +22,7 @@ struct metric_expr {
 	const char *metric_name;
 	const char *metric_unit;
 	struct evsel **metric_events;
+	int runtime;
 };
 
 struct metric_event *metricgroup__lookup(struct rblist *metric_events,
@@ -34,4 +35,5 @@ int metricgroup__parse_groups(const struct option *opt,
 void metricgroup__print(bool metrics, bool groups, char *filter,
 			bool raw, bool details);
 bool metricgroup__has_metric(const char *metric);
+int arch_get_runtimeparam(void);
 #endif
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index 1ad5c5be7e9789b1ac486e93a6a55751dc4cb727..518fbb3a6269438c68a2fe9101748800ab86c2eb 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -336,7 +336,7 @@ void perf_stat__collect_metric_expr(struct evlist *evsel_list)
 		metric_events = counter->metric_events;
 		if (!metric_events) {
 			if (expr__find_other(counter->metric_expr, counter->name,
-						&metric_names, &num_metric_names) < 0)
+						&metric_names, &num_metric_names, 1) < 0)
 				continue;
 
 			metric_events = calloc(sizeof(struct evsel *),
@@ -723,6 +723,7 @@ static void generic_metric(struct perf_stat_config *config,
 			   char *name,
 			   const char *metric_name,
 			   const char *metric_unit,
+			   int runtime,
 			   double avg,
 			   int cpu,
 			   struct perf_stat_output_ctx *out,
@@ -777,7 +778,7 @@ static void generic_metric(struct perf_stat_config *config,
 	}
 
 	if (!metric_events[i]) {
-		if (expr__parse(&ratio, &pctx, metric_expr) == 0) {
+		if (expr__parse(&ratio, &pctx, metric_expr, runtime) == 0) {
 			char *unit;
 			char metric_bf[64];
 
@@ -786,9 +787,13 @@ static void generic_metric(struct perf_stat_config *config,
 					&unit, &scale) >= 0) {
 					ratio *= scale;
 				}
-
-				scnprintf(metric_bf, sizeof(metric_bf),
+				if (strstr(metric_expr, "?"))
+					scnprintf(metric_bf, sizeof(metric_bf),
+					  "%s  %s_%d", unit, metric_name, runtime);
+				else
+					scnprintf(metric_bf, sizeof(metric_bf),
 					  "%s  %s", unit, metric_name);
+
 				print_metric(config, ctxp, NULL, "%8.1f",
 					     metric_bf, ratio);
 			} else {
@@ -1022,7 +1027,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
 			print_metric(config, ctxp, NULL, NULL, name, 0);
 	} else if (evsel->metric_expr) {
 		generic_metric(config, evsel->metric_expr, evsel->metric_events, evsel->name,
-				evsel->metric_name, NULL, avg, cpu, out, st);
+				evsel->metric_name, NULL, 1, avg, cpu, out, st);
 	} else if (runtime_stat_n(st, STAT_NSECS, 0, cpu) != 0) {
 		char unit = 'M';
 		char unit_buf[10];
@@ -1051,7 +1056,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
 				out->new_line(config, ctxp);
 			generic_metric(config, mexp->metric_expr, mexp->metric_events,
 					evsel->name, mexp->metric_name,
-					mexp->metric_unit, avg, cpu, out, st);
+					mexp->metric_unit, mexp->runtime, avg, cpu, out, st);
 		}
 	}
 	if (num == 0)