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: Copyright (c) 2017 Enea AB and others.
:
: All rights reserved. This program and the accompanying materials
: are made available under the terms of the Apache License, Version 2.0
: which accompanies this distribution, and is available at
: http://www.apache.org/licenses/LICENSE-2.0
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From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
Date: Sun, 15 Jan 2017 08:14:12 +0100
Subject: [PATCH] AArch64: Read hugepage size from /proc/meminfo
This method should be arch-indepedent, provided /proc/meminfo
reports the correct information.
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
---
agent | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/agent b/agent
index eeb4d26..d514de6 100755
--- a/agent
+++ b/agent
@@ -1399,6 +1399,13 @@ class NodeAgent
def supported_hugepages
return [2048, 1048576] if _get_detailed_cpuinfo['0'][:flags].include?('pdpe1gb')
return [2048] if _get_detailed_cpuinfo['0'][:flags].include?('pse')
+ # AArch64 does not expose CPU flags, but we can rely on /proc/meminfo
+ File.open('/proc/meminfo').each do |l|
+ case l.strip
+ when /Hugepagesize:\s+(\d+)\s+kB/
+ return [$1.to_i()]
+ end
+ end
[]
end
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