From b291d9aa2267788c22338ae8c6ec44c1a59dd55d Mon Sep 17 00:00:00 2001
From: Rob Norris <rob.norris@truenas.com>
Date: Wed, 18 Feb 2026 13:27:41 +1100
Subject: [PATCH] get_cpu_freq: handle CPUs with variable frequency
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If a CPU has variable frequency, then lscpu will list separate "CPU min
freq" and "CPU max freq" values. In this case, take the maximum.

Sponsored-by: TrueNAS
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Attila Fülöp <attila@fueloep.org>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Rob Norris <rob.norris@truenas.com>
Closes #18232
---
 tests/zfs-tests/include/libtest.shlib | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/zfs-tests/include/libtest.shlib b/tests/zfs-tests/include/libtest.shlib
index 096d6b18e..3c0c4eb5f 100644
--- a/tests/zfs-tests/include/libtest.shlib
+++ b/tests/zfs-tests/include/libtest.shlib
@@ -2896,7 +2896,7 @@ function is_mp
 function get_cpu_freq
 {
 	if is_linux; then
-		lscpu | awk '/CPU MHz/ { print $3 }'
+		lscpu | awk '/CPU( max)? MHz/ { print $NF }'
 	elif is_freebsd; then
 		sysctl -n hw.clockrate
 	else