From: Richard Allen <rsaxvc@rsaxvc.net>
Date: Sun, 20 Nov 2022 20:49:43 +0000 (-0600)
Subject: irqtop: improve delta-sort stability
X-Git-Tag: v2.39-rc1~414^2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=2101d110b527ce5e850447d4e552472fb64bd0f2;p=thirdparty%2Futil-linux.git

irqtop: improve delta-sort stability

When sorting irqs by delta, sort first by delta, then by name.
This helps interrupts occuring at the same rate reach a more
stable display ordering.

Signed-off-by: Richard Allen <rsaxvc@gmail.com>
---

diff --git a/sys-utils/irq-common.c b/sys-utils/irq-common.c
index 8924250570..2d736a0fd1 100644
--- a/sys-utils/irq-common.c
+++ b/sys-utils/irq-common.c
@@ -378,7 +378,9 @@ static inline int cmp_total(const struct irq_info *a,
 static inline int cmp_delta(const struct irq_info *a,
 		      const struct irq_info *b)
 {
-	return a->delta < b->delta;
+	if (a->delta != b->delta)
+		return a->delta < b->delta;
+	return cmp_name(a, b);
 }
 
 static inline int cmp_interrupts(const struct irq_info *a,