irqbalance/SOURCES/irqbalance-1.7.0-Add-some-examples-for-IRQBALANCE_BANNED_CPUS.patch
2021-10-08 12:11:46 +00:00

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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