rogeliodh

Configure 1G Hugepages in OpenShift 4.2

Update Node Kernel Parameters

Supporting 1G hugepages requires the Kernel to support 1G Hugepages. This is done by applying a boot Kernel parameter.

• Create a MachineConfig (MC) to apply to the Node type that will be using the 1G hugepages. The following example set 1G hugepages for all worker nodes 50-kargs-1g-hugepages.yaml:

  apiVersion: machineconfiguration.openshift.io/v1
  

kind: MachineConfig

rogeliodh

Keybase proof

I hereby claim:

• I am rogeliodh on github.
• I am rogeliodh (https://keybase.io/rogeliodh) on keybase.
• I have a public key ASCxGn_I40bAn5EySAgDO8-Gr1D8TuzRYgbEHYTaQavkfgo

To claim this, I am signing this object:

rogeliodh

#!/bin/sh

SD=/mnt/mmc/debug
mkdir -p "$SD"

main() {
    sleep 3
    /bin/mount
    /bin/dmesg
    ls -lR /proc/

rogeliodh

#!/bin/sh

if [ "$ACTION" == "add" ]
then
        echo add > /tmp/mmc_add
    /bin/mount -t vfat -o iocharset=utf8,shortname=mixed /dev/$1 /mnt/mmc
        if [ "$?" != "0" ]
        then
        /bin/mount -o iocharset=utf8 /dev/$1 /mnt/mmc
        fi

rogeliodh

#!/bin/sh

set -e

cd myfw
# mkyaffs2 from mkyaffs2 0.2.9_20120815
sudo ../mkyaffs2 fifo_rootfs fifo_rootfs.yaffs2
echo -n `md5sum fifo_rootfs.yaffs2 | cut -c1-32` > fifo_rootfs.yaffs2.md5
tar zcvf ../X1II.repacked.fw fifo_uimage fifo_uimage.md5 fifo_uimageesmt fifo_uimageesmt.md5 fifo_rootfs.yaffs2 fifo_rootfs.yaffs2.md5

rogeliodh

#!/bin/sh

set -e

mkdir -p myfw
tar zxvf X1II.fw -C myfw
# unyaffs2 from yaffs2utils is not working
#sudo ./unyaffs2 myfw/fifo_rootfs.yaffs2 myfw/fifo_rootfs
# Use unyaffs from ubuntu's unyaffs package (apt-get install unyaffs)
sudo unyaffs myfw/fifo_rootfs.yaffs2 myfw/fifo_rootfs

rogeliodh

 X1II.fw                                                                                |binary
 X1II/fifo_rootfs.yaffs2                                                                |binary
 X1II/fifo_rootfs.yaffs2.md5                                                            |    2 
 X1II/fifo_rootfs/lib/libtag.so.1                                                       |binary
 X1II/fifo_rootfs/usr/pv-project/320x240-Resource/Config/pic_list2.txt                  |    4 
 X1II/fifo_rootfs/usr/pv-project/320x240-Resource/Config/pic_list3.txt                  |    4 
 X1II/fifo_rootfs/usr/pv-project/320x240-Resource/Config/pic_list4.txt                  |    4 
 X1II/fifo_rootfs/usr/pv-project/320x240-Resource/Config/pic_list5.txt                  |    4 
 X1II/fifo_rootfs/usr/pv-project/320x240-Resource/Config/pic_list6.txt                  |    4 
 X1II/fifo_rootfs/usr/pv-project/320x240-Resource/Config/txt_list_big.txt               |    1 

rogeliodh

[    0.000000] Linux version 2.6.31.3-svn663 (chenyou@skytc7) (gcc version 4.1.2) #315 PREEMPT Sat Oct 1 20:55:25 CST 2016
[    0.000000] Jz47XX Floating coprocessor work on 32*32bit mode
[    0.000000] console [early0] enabled
[    0.000000] CPU revision is: 2ed0024f (Ingenic JZRISC)
[    0.000000] FPU revision is: 00330000
[    0.000000] CPU clock: 432MHz, System clock: 144MHz, Peripheral clock: 72MHz, Memory clock: 72MHz
[    0.000000] JZ4760B Lepus board setup
[    0.000000] Power Management for JZ
[    0.000000] Determined physical RAM map:
[    0.000000]  memory: 04000000 @ 00000000 (usable)

rogeliodh

File fs/dev/console is a character special file while file myfs/dev/console is a character special file
File fs/dev/null is a character special file while file myfs/dev/null is a character special file
File fs/dev/zero is a character special file while file myfs/dev/zero is a character special file
diff -ruN fs/etc/init.d/rcS myfs/etc/init.d/rcS
--- fs/etc/init.d/rcS	2016-09-01 00:55:51.000000000 -0500
+++ myfs/etc/init.d/rcS	2016-10-30 09:55:56.000000000 -0600
@@ -38,3 +38,5 @@
 
 /usr/jz_mips/bin/udevd --daemon
 /usr/jz_mips/bin/udevstart

rogeliodh

Selecting soc jz4760b. Redirecting HW to hwstub.soc.jz4760b
Starting interactive lua session. Type 'help()' to get some help
information
  hwstub
    version: 4.3
  device
    version: 4.3.0
    target
      id: 0x37345a4a (JZ47)
      name: JZ4760 USB Boot Device