From: Unsung Lee <unsung.lee@samsung.com>
Date: Mon, 4 Sep 2023 07:01:47 +0000 (+0900)
Subject: resourced-cpu-boosting: Add is_cpu_busy argument into governor func
X-Git-Tag: accepted/tizen/unified/20230906.014628^0
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8277e8a5a595d431a38b59548a8ab631c01e0508;p=platform%2Fcore%2Fsystem%2Fplugin%2Fresourced-generic.git

resourced-cpu-boosting: Add is_cpu_busy argument into governor func

Add is_cpu_busy argument into cpu_boosting_governor_govern_request function
to return whehter system cpu is busy or not.
resourced will use this information to decide whether to ignore stall event.

Change-Id: I66c77f0c7589840fad63973b2319dc1620d07db6
Signed-off-by: Unsung Lee <unsung.lee@samsung.com>
---

diff --git a/src/resourced-cpu-boosting/resourced-cpu-boosting.c b/src/resourced-cpu-boosting/resourced-cpu-boosting.c
index 3f7c043..91de093 100644
--- a/src/resourced-cpu-boosting/resourced-cpu-boosting.c
+++ b/src/resourced-cpu-boosting/resourced-cpu-boosting.c
@@ -195,7 +195,7 @@ static bool is_cpu_contention_alleviated(guint timer_id, guint latest_timer_id)
 static int cpu_boosting_governor_govern_request (
 		GHashTable *cpu_boosting_info_table,
 		cpu_boosting_level_e cpu_boosting_level,
-		GSList **cpu_boosting_controller_action)
+		GSList **cpu_boosting_controller_action, bool *is_cpu_busy)
 {
 	GHashTableIter cpu_boosting_info_iter;
 	resource_pid_t resource_pid;
@@ -218,8 +218,24 @@ static int cpu_boosting_governor_govern_request (
 		goto error;
 	}
 
-	if(!is_system_cpu_busy(BOOSTING_LEVEL_DECREASE_CPU_UTIL_THRESHOLD))
+	if (is_cpu_busy == NULL) {
+		_E("is_cpu_busy argument cannot be NULL");
+		ret = -EINVAL;
+		goto error;
+	}
+
+	/**
+	 * Check cpu utilization once per a stall event.
+	 * If cpu is busy at CPU_BOOSTING_LEVEL_STRONG,
+	 * then find out victims to decrease cpu boosting level.
+	 */
+	if (cpu_boosting_level == CPU_BOOSTING_LEVEL_STRONG
+			&& !is_system_cpu_busy(BOOSTING_LEVEL_DECREASE_CPU_UTIL_THRESHOLD)) {
+		*is_cpu_busy = false;
 		return 0;
+	}
+
+	*is_cpu_busy = true;
 
 	hash_size = g_hash_table_size(cpu_boosting_info_table);
 	if (hash_size == 0)