Gao feng gao-feng

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I may be slow to respond.

gao-feng / density

Last active November 1, 2017 05:40

packet aarch64 Centriq

	packet Tyep2 machine:
	Intel Xeon E5-2650 v4 @2.2GHz (48 processor in /proc/cpuinf)
	256GB (251GB in /proc/meminfo)
	6 x 480GB Enterprise SSD
	1 x 150GB Enterprise SSD
	2 x 10Gbps Bonded Ports
	density: run 1968 busybox containers

	pakcet Type2A5 machine:
	48-core @ 2.5Ghz (40 processor in /proc/cpuinfo)

gao-feng / performance

Last active September 2, 2017 14:46

xenpv vs qemu on gce

	vm memory:512M,cpu:2

	read write 4k-seqread 4k-randread 4k-seqwrite 4k-randwrite memory cpu(per-request) boot time
	xenpv(9p) 19902KB/s 38357KB/s 35793KB/s 5615KB/s 31051KB/s 11737KB/s 203MB/s 2.13ms 1181ms
	qemu(9p) 7211KB/s 7501KB/s 5649KB/s 1726KB/s 5220KB/s 4639KB/s 68MB/s 12.33ms 6095ms
	xenpv(block) 45285KB/s 36627KB/s 11010KB/s 6028KB/s 6027KB/s 6027KB/s
	qemu(block) 43737KB/s 34741KB/s 2929KB/s 2842KB/s 2634KB/s 2262KB/s
	host 42613KB/s 36609KB/s 11044KB/s 6028KB/s 6028KB/s 6027KB/s 211MB/s 2.10ms
	~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	1, io

gao-feng / gist:3a76adeb5d9599d59d659295c0c116f7

Last active June 27, 2017 09:23

ovs-dpdk

	env
	dpdk: dpdk-stable-17.02.1
	ovs: 6b1d46253362c0bad844cedf93e22e7bf94d55dc/2.7.0?
	kernel: 4.11.5-200.fc25.x86_64

	1, download and install dpd
	$ wget http://dpdk.org/browse/dpdk-stable/snapshot/dpdk-stable-17.02.1.zip
	$ unzip dpdk-stable-17.02.1.zip
	$ cd dpdk-stable-17.02.1
	$ export DPDK_DIR=`pwd`

gao-feng / gist:cffd7197cb7ad0622f05648bb95c8a21

Created September 30, 2016 09:03

aarch64 with virtio-pci boot log

	Booting Linux on physical CPU 0x0
	Initializing cgroup subsys cpuset
	Initializing cgroup subsys cpu
	Initializing cgroup subsys cpuacct
	Linux version 4.4.11 (root@ubuntu) (gcc version 4.9.2 (Ubuntu/Linaro 4.9.2-10ubuntu13) ) #24 SMP Thu Sep 29 13:56:19 CST 2016
	Boot CPU: AArch64 Processor [411fd070]
	psci: probing for conduit method from DT.
	psci: PSCIv0.2 detected in firmware.
	psci: Using standard PSCI v0.2 function IDs
	psci: Trusted OS migration not required

gao-feng / gist:e1d0d2379799f8655c60

Created August 18, 2015 08:29

ceph-deploy --overwrite-conf mon create-initial

	[gaofeng@localhost ~]$ ceph-deploy --overwrite-conf mon create-initial
	[ceph_deploy.conf][DEBUG ] found configuration file at: /home/gaofeng/.cephdeploy.conf
	[ceph_deploy.cli][INFO ] Invoked (1.5.27): /usr/bin/ceph-deploy --overwrite-conf mon create-initial
	[ceph_deploy.cli][INFO ] ceph-deploy options:
	[ceph_deploy.cli][INFO ] username : None
	[ceph_deploy.cli][INFO ] verbose : False
	[ceph_deploy.cli][INFO ] overwrite_conf : True
	[ceph_deploy.cli][INFO ] subcommand : create-initial
	[ceph_deploy.cli][INFO ] quiet : False
	[ceph_deploy.cli][INFO ] cd_conf : <ceph_deploy.conf.cephdeploy.Conf instance at 0x198cab8>

gao-feng / hyperdiff log

Created July 25, 2015 21:13

	[gaofeng@thinkdonkey hyperdiff]$ ./hyperdiff --layer /home/gaofeng/git/hyper --parent /home/gaofeng/git/hyper-mac/ --tar new.tar
	read 512 byte
	write 512 byte
	read 512 byte
	write 512 byte
	read 512 byte
	write 512 byte
	read 23 byte
	write 23 byte
	read 489 byte

gao-feng / vbox hyperd panic

Created June 24, 2015 02:54

	[root@thinkdonkey dvm-cli]# ./hyperd -v=3
	[HYPER INFO 0624 10:51:51 23766 vm.go] VBox Driver Loaded.
	[HYPER INFO 0624 10:51:51 23766 hyperd.go] [:50] The config file is
	[HYPER INFO 0624 10:51:51 23766 daemon.go] [:205] The config: kernel=/home/gaofeng/git/dvminit/build/kernel, initrd=/home/gaofeng/git/dvminit/build/hyper-initrd.img
	[HYPER INFO 0624 10:51:51 23766 daemon.go] [:207] The config: vbox image=/home/gaofeng/git/dvminit/build/hyper-vbox-bootimage.vmdk
	[HYPER INFO 0624 10:51:51 23766 daemon.go] [:210] The config: bridge=, ip=192.168.22.0/24
	[HYPER INFO 0624 10:51:51 23766 daemon.go] [:213] The config: bios=, cbfs=
	[HYPER INFO 0624 10:51:51 23766 network.go] [:251] bridge exist
	[HYPER INFO 0624 10:51:51 23766 iptables.go] [:140] /sbin/iptables, [--wait -t nat -C POSTROUTING -s 192.168.22.1/24 ! -o hyper0 -j MASQUERADE]
	[HYPER INFO 0624 10:51:51 23766 iptables.go] [:140] /sbin/iptables, [--wait -N HYPER]