diff --git a/tools/perf/arch/powerpc/util/header.c b/tools/perf/arch/powerpc/util/header.c
index 3b4cdfc5efd6..28425edb901c 100644
--- a/tools/perf/arch/powerpc/util/header.c
+++ b/tools/perf/arch/powerpc/util/header.c
@@ -7,6 +7,11 @@
 #include <string.h>
 #include <linux/stringify.h>
 #include "header.h"
+#include "metricgroup.h"
+#include "evlist.h"
+#include <dirent.h>
+#include "pmu.h"
+#include <api/fs/fs.h>
 
 #define mfspr(rn)       ({unsigned long rval; \
 			 asm volatile("mfspr %0," __stringify(rn) \
@@ -16,6 +21,8 @@
 #define PVR_VER(pvr)    (((pvr) >>  16) & 0xFFFF) /* Version field */
 #define PVR_REV(pvr)    (((pvr) >>   0) & 0xFFFF) /* Revison field */
 
+#define SOCKETS_INFO_FILE_PATH "/devices/hv_24x7/interface/"
+
 int
 get_cpuid(char *buffer, size_t sz)
 {
@@ -44,3 +51,36 @@ get_cpuid_str(struct perf_pmu *pmu __maybe_unused)
 
 	return bufp;
 }
+
+int arch_get_runtimeparam(void)
+{
+	int count = 0;
+	DIR *dir;
+	char path[PATH_MAX];
+	const char *sysfs = sysfs__mountpoint();
+	char filename[] = "sockets";
+	FILE *file;
+	char buf[16], *num;
+	int data;
+
+	if (!sysfs)
+		goto out;
+	snprintf(path, PATH_MAX,
+		 "%s" SOCKETS_INFO_FILE_PATH, sysfs);
+	dir = opendir(path);
+	if (!dir)
+		goto out;
+	strcat(path, filename);
+	file = fopen(path, "r");
+	if (!file)
+		goto out;
+
+	data = fread(buf, 1, sizeof(buf), file);
+	if (data == 0)
+		goto out;
+	count = strtol(buf, &num, 10);
+out:
+	if (!count)
+		count = 1;
+	return count;
+}
diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h
index 046160831f90..85ebea68b0c5 100644
--- a/tools/perf/util/expr.h
+++ b/tools/perf/util/expr.h
@@ -15,6 +15,7 @@ struct parse_ctx {
 	struct parse_id ids[MAX_PARSE_ID];
 };
 
+extern int expr__runtimeparam;
 void expr__ctx_init(struct parse_ctx *ctx);
 void expr__add_id(struct parse_ctx *ctx, const char *id, double val);
 #ifndef IN_EXPR_Y
diff --git a/tools/perf/util/expr.y b/tools/perf/util/expr.y
index f9a20a39b64a..26c62b631525 100644
--- a/tools/perf/util/expr.y
+++ b/tools/perf/util/expr.y
@@ -36,6 +36,8 @@
 %type <num> expr if_expr
 
 %{
+int expr__runtimeparam;
+
 static int expr__lex(YYSTYPE *res, const char **pp);
 
 static void expr__error(double *final_val __maybe_unused,
@@ -101,7 +103,7 @@ static int expr__symbol(YYSTYPE *res, const char *p, const char **pp)
 	if (*p == '#')
 		*dst++ = *p++;
 
-	while (isalnum(*p) || *p == '_' || *p == '.' || *p == ':' || *p == '@' || *p == '\\') {
+	while (isalnum(*p) || *p == '_' || *p == '.' || *p == ':' || *p == '@' || *p == '\\' || *p == '?') {
 		if (p - s >= MAXIDLEN)
 			return -1;
 		/*
@@ -112,6 +114,19 @@ static int expr__symbol(YYSTYPE *res, const char *p, const char **pp)
 			*dst++ = '/';
 		else if (*p == '\\')
 			*dst++ = *++p;
+		else if (*p == '?') {
+			int size = snprintf(NULL, 0, "%d", expr__runtimeparam);
+			char * paramval = (char *)malloc(size);
+			int i = 0;
+			if(!paramval)
+				*dst++ = '0';
+			else {
+				sprintf(paramval, "%d", expr__runtimeparam);
+				while(i < size)
+					*dst++ = paramval[i++];
+				free(paramval);
+			}
+		}
 		else
 			*dst++ = *p;
 		p++;
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index 02aee946b6c1..ec87a120cd7e 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -399,6 +399,11 @@ void metricgroup__print(bool metrics, bool metricgroups, char *filter,
 	strlist__delete(metriclist);
 }
 
+int __weak arch_get_runtimeparam(void)
+{
+	return 1;
+}
+
 static int metricgroup__add_metric(const char *metric, struct strbuf *events,
 				   struct list_head *group_list)
 {
@@ -419,52 +424,80 @@ static int metricgroup__add_metric(const char *metric, struct strbuf *events,
 			continue;
 		if (match_metric(pe->metric_group, metric) ||
 		    match_metric(pe->metric_name, metric)) {
-			const char **ids;
-			int idnum;
-			struct egroup *eg;
-			bool no_group = false;
-
-			pr_debug("metric expr %s for %s\n", pe->metric_expr, pe->metric_name);
-
-			if (expr__find_other(pe->metric_expr,
-					     NULL, &ids, &idnum) < 0)
-				continue;
-			if (events->len > 0)
-				strbuf_addf(events, ",");
-			for (j = 0; j < idnum; j++) {
-				pr_debug("found event %s\n", ids[j]);
-				/*
-				 * Duration time maps to a software event and can make
-				 * groups not count. Always use it outside a
-				 * group.
-				 */
-				if (!strcmp(ids[j], "duration_time")) {
-					if (j > 0)
-						strbuf_addf(events, "}:W,");
-					strbuf_addf(events, "duration_time");
-					no_group = true;
+			int k, 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 (k = 0; k < count; k++) {
+				const char **ids;
+				int idnum;
+				struct egroup *eg;
+				bool no_group = false;
+				char value[PATH_MAX];
+
+				pr_debug("metric expr %s for %s\n",
+					 pe->metric_expr, pe->metric_name);
+				expr__runtimeparam = k;
+				if (expr__find_other(pe->metric_expr, NULL,
+						     &ids, &idnum) < 0)
 					continue;
+				if (events->len > 0)
+					strbuf_addf(events, ",");
+				for (j = 0; j < idnum; j++) {
+					pr_debug("found event %s\n", ids[j]);
+					/*
+					 * Duration time maps to a software
+					 * event and can make groups not count.
+					 * Always use it outside a group.
+					 */
+					if (!strcmp(ids[j], "duration_time")) {
+						if (j > 0)
+							strbuf_addf(events,
+								    "}:W,");
+						strbuf_addf(events,
+							    "duration_time");
+						no_group = true;
+						continue;
+					}
+					strbuf_addf(events, "%s%s",
+						    j == 0 || no_group ? "{" :
+						    ",", ids[j]);
+					no_group = false;
 				}
-				strbuf_addf(events, "%s%s",
-					j == 0 || no_group ? "{" : ",",
-					ids[j]);
-				no_group = false;
-			}
-			if (!no_group)
-				strbuf_addf(events, "}:W");
+				if (!no_group)
+					strbuf_addf(events, "}:W");
 
-			eg = malloc(sizeof(struct egroup));
-			if (!eg) {
-				ret = -ENOMEM;
-				break;
+				eg = malloc(sizeof(struct egroup));
+				if (!eg) {
+					ret = -ENOMEM;
+					break;
+				}
+				eg->ids = ids;
+				eg->idnum = idnum;
+				strcpy(value, pe->metric_name);
+				if (strstr(pe->metric_name, "?")) {
+					int size = snprintf(NULL, 0, "%d", k);
+					char *param = (char *)malloc(size + 1);
+
+					if (!param) {
+						strcat(value, "_0");
+					} else {
+						sprintf(param, "%c%d", '_', k);
+						value[strlen(value) - 1] = '\0';
+						strcat(value, param);
+						free(param);
+					}
+				}
+				eg->metric_name = strdup(value);
+				eg->metric_expr = pe->metric_expr;
+				eg->metric_unit = pe->unit;
+				list_add_tail(&eg->nd, group_list);
+				ret = 0;
 			}
-			eg->ids = ids;
-			eg->idnum = idnum;
-			eg->metric_name = pe->metric_name;
-			eg->metric_expr = pe->metric_expr;
-			eg->metric_unit = pe->unit;
-			list_add_tail(&eg->nd, group_list);
-			ret = 0;
 		}
 	}
 	return ret;
diff --git a/tools/perf/util/metricgroup.h b/tools/perf/util/metricgroup.h
index 475c7f912864..81224ba1270d 100644
--- a/tools/perf/util/metricgroup.h
+++ b/tools/perf/util/metricgroup.h
@@ -34,4 +34,5 @@ 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 2c41d47f6f83..147a39b1ff5b 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -780,7 +780,12 @@ static void generic_metric(struct perf_stat_config *config,
 
 	if (!metric_events[i]) {
 		const char *p = metric_expr;
+		if (strstr(p, "?")) {
+			char *tmp = strrchr(metric_name, '_');
 
+			tmp++;
+			expr__runtimeparam = strtol(tmp, &tmp, 10);
+		}
 		if (expr__parse(&ratio, &pctx, &p) == 0) {
 			char *unit;
 			char metric_bf[64];
