From acb0c2057952fa8bb502bf6b4222b327efe44c4c Mon Sep 17 00:00:00 2001

From: Kairui Song <kasong@redhat.com>

Date: Mon, 26 Oct 2020 17:26:52 +0800

Subject: [PATCH] Add some examples for IRQBALANCE_BANNED_CPUS

Signed-off-by: Kairui Song <kasong@redhat.com>

---

 irqbalance.1 | 7 +++++++

 1 file changed, 7 insertions(+)

diff --git a/irqbalance.1 b/irqbalance.1

index d272b6f..330c12b 100644

--- a/irqbalance.1

+++ b/irqbalance.1

@@ -157,6 +157,13 @@ Same as --debug.

 Provides a mask of CPUs which irqbalance should ignore and never assign interrupts to.

 If not specified, irqbalance use mask of isolated and adaptive-ticks CPUs on the

 system as the default value.

+This is a hexmask without the leading ’0x’. On systems with large numbers of

+processors, each group of eight hex digits is separated by a comma ’,’. i.e.

+‘export IRQBALANCE_BANNED_CPUS=fc0‘ would prevent irqbalance from assigning irqs

+to the 7th-12th cpus (cpu6-cpu11) or ‘export IRQBALANCE_BANNED_CPUS=ff000000,00000001‘

+would prevent irqbalance from assigning irqs to the 1st (cpu0) and 57th-64th cpus

+(cpu56-cpu63).

+

 .SH "SIGNALS"

 .TP

-- 

2.28.0