blob: 301d34cbe46877a7e52eb5f2f45a6524a961503f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
#!/bin/bash
##############################################################################
## Copyright (c) 2015 Intel Corp.
##
## 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
###############################################################################
source utils.sh
KERNEL_VERSION=$( getKernelVersion )
if [ -z $KERNEL_VERSION ];then
echo "Kernel RPM not found"
exit 1
fi
rpmdir=${1:-"/root/workspace/rpm"}
rpmpat="kernel-${KERNEL_VERSION}*.rpm"
guest_isolcpus=1
# The script's caller should passing the rpm directory that is built out from
# build.sh. The default rpmdir is the one used by yardstick scripts.
install_kernel () {
# Install the kernel rpm
filenum=`ls -l ${rpmdir}/${rpmpat} |wc -l`
if [ $filenum -eq 0 ]
then
echo "No kernel rpm found in workspace/rpm"
exit 1
elif [ $filenum -gt 1 ]
then
echo "Multiple kernel rpm found in workspace/rpm"
exit 1
else
krpm=`find "${rpmdir}" -name "${rpmpat}"`
rpm -ihv $krpm
fi
}
config_grub () {
key=$1
val=$2
if grep '[" ]'${key} /etc/default/grub > /dev/null ; then
sed -i 's/\([" ]\)'${key}'=[^ "]*/\1'${key}'='${val}'/' /etc/default/grub
else
sed -i 's/GRUB_CMDLINE_LINUX="\(.*\)"/GRUB_CMDLINE_LINUX="\1 '${key}'='${val}'"/' /etc/default/grub
fi
}
# Isolate CPUs from the general scheduler
config_grub 'isolcpus' ${guest_isolcpus}
# Stop timer ticks on isolated CPUs whenever possible
config_grub 'nohz_full' ${guest_isolcpus}
# Disable machine check
config_grub 'mce' 'off'
# Use polling idle loop to improve performance
config_grub 'idle' 'poll'
## Disable clocksource verification at runtime
config_grub 'tsc' 'reliable'
grub2-mkconfig -o /boot/grub2/grub.cfg
install_kernel
|
