prevent adding idle cpu cores or disks

2 files changed, 12 insertions, 0 deletions

diff --git a/src/proc_diskstats.c b/src/proc_diskstats.c
index 0992abff49..f9bd623aac 100755
--- a/src/proc_diskstats.c
+++ b/src/proc_diskstats.c
@@ -110,6 +110,10 @@ int do_proc_diskstats(int update_every, unsigned long long dt) {
 		// I/O completion time and the backlog that may be accumulating.
 		backlog_ms 		= strtoull(procfile_lineword(ff, l, 13), NULL, 10);	// rq_ticks
 
+
+		// do not add a disk that is completely idle
+		if(!reads && !writes && !busy_ms) continue;
+
 		int def_enabled = 0;
 
 		// remove slashes from disk names
diff --git a/src/proc_softirqs.c b/src/proc_softirqs.c
index d2122817e4..7f280ac1e8 100755
--- a/src/proc_softirqs.c
+++ b/src/proc_softirqs.c
@@ -131,6 +131,14 @@ int do_proc_softirqs(int update_every, unsigned long long dt) {
 
 			st = rrdset_find_bytype("cpu", id);
 			if(!st) {
+				// find if everything is zero
+				unsigned long long core_sum = 0 ;
+				for(l = 0; l < lines ;l++) {
+					if(!irrs[l].used) continue;
+					core_sum += irrs[l].value[c];
+				}
+				if(core_sum == 0) continue; // try next core
+
 				char name[256], title[256];
 				snprintf(name, 256, "cpu%d_softirqs", c);
 				snprintf(title, 256, "CPU%d softirqs", c);