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jlelli/cpuset-cgroup-waiman-v10.ipynb

Created June 19, 2018 09:42
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Test Cpuset in default hierarchy (v10)
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cpuset-cgroup2-waiman-v10.ipynb
{
"cells": [
{
"cell_type": "code",
"execution_count": 1,
"metadata": {},
"outputs": [
{
"name": "stderr",
"output_type": "stream",
"text": [
"2018-06-19 09:08:40,783 INFO : root : Using LISA logging configuration:\n",
"2018-06-19 09:08:40,785 INFO : root : /home/juri/work/lisa/logging.conf\n"
]
}
],
"source": [
"import logging\n",
"from conf import LisaLogging\n",
"LisaLogging.setup()\n",
"\n",
"# Uncomment the follwing line to enabled devlib debugging statements\n",
"# logging.getLogger('ssh').setLevel(logging.DEBUG)"
]
},
{
"cell_type": "code",
"execution_count": 2,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Populating the interactive namespace from numpy and matplotlib\n"
]
}
],
"source": [
"# Generate plots inline\n",
"%pylab inline\n",
"\n",
"import copy\n",
"import json\n",
"import os\n",
"\n",
"# Support to access the remote target\n",
"import devlib\n",
"from env import TestEnv\n",
"\n",
"# Support to configure and run RTApp based workloads\n",
"from wlgen import RTA, Periodic, PerfMessaging\n",
"\n",
"# Support for performance analysis of RTApp workloads\n",
"from perf_analysis import PerfAnalysis\n",
"\n",
"# Support for trace events analysis\n",
"from trace import Trace\n",
"\n",
"# Suport for FTrace events parsing and visualization\n",
"import trappy\n",
"\n",
"import pandas as pd\n",
"import matplotlib.pyplot as plt"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Test environment setup"
]
},
{
"cell_type": "code",
"execution_count": 3,
"metadata": {},
"outputs": [],
"source": [
"# Setup a target configuration\n",
"my_conf = {\n",
" \n",
" # Define the kind of target platform to use for the experiments\n",
" \"platform\" : 'linux', # Linux system, valid other options are:\n",
" # android - access via ADB\n",
" # linux - access via SSH\n",
" # host - direct access\n",
" \n",
" # Preload settings for a specific target\n",
" #\"board\" : 'xeon_E5-2609_v3',\n",
" \n",
" # Define devlib module to load\n",
" \"modules\" : [\n",
" #'bl', # enable big.LITTLE support\n",
" #'cpufreq' # enable CPUFreq support\n",
" 'hotplug'\n",
" ],\n",
" \n",
" \"exclude_modules\" : [\n",
" 'cpufreq'\n",
" ],\n",
"\n",
" # Account to access the remote target\n",
" \"host\" : '127.0.0.1',\n",
" \"port\" : '10022',\n",
" \"username\" : 'root',\n",
" \"password\" : '',\n",
"\n",
" # Comment the following line to force rt-app calibration on your target\n",
" \"rtapp-calib\" : {\n",
" \"0\": 23, \"1\": 23, \"2\": 23, \"3\": 23\n",
" },\n",
" \n",
" # Binary tools required to run this experiment\n",
" # These tools must be present in the tools/ folder for the architecture\n",
" \"tools\" : ['rt-app', 'taskset', 'trace-cmd', 'perf'],\n",
" \n",
" # FTrace events end buffer configuration\n",
" \"ftrace\" : {\n",
" \"events\" : [\n",
" \"sched_switch\"\n",
" ],\n",
" \"buffsize\" : 20240\n",
" },\n",
" \n",
" \"results_dir\" : \"cpuset-cgroup2-waiman-v10\"\n",
"}"
]
},
{
"cell_type": "code",
"execution_count": 4,
"metadata": {
"scrolled": false
},
"outputs": [
{
"name": "stderr",
"output_type": "stream",
"text": [
"2018-06-19 09:08:42,293 INFO : TestEnv : Using base path: /home/juri/work/lisa\n",
"2018-06-19 09:08:42,298 INFO : TestEnv : Loading custom (inline) target configuration\n",
"2018-06-19 09:08:42,301 INFO : TestEnv : Devlib modules to load: ['cpuidle', 'hotplug']\n",
"2018-06-19 09:08:42,303 INFO : TestEnv : Connecting linux target:\n",
"2018-06-19 09:08:42,307 INFO : TestEnv : username : root\n",
"2018-06-19 09:08:42,308 INFO : TestEnv : host : 127.0.0.1\n",
"2018-06-19 09:08:42,310 INFO : TestEnv : password : \n",
"2018-06-19 09:08:42,313 INFO : TestEnv : port : 10022\n",
"2018-06-19 09:08:42,314 INFO : TestEnv : Connection settings:\n",
"2018-06-19 09:08:42,316 INFO : TestEnv : {'username': 'root', 'host': '127.0.0.1', 'password': '', 'port': '10022'}\n",
"2018-06-19 09:08:45,770 INFO : TestEnv : Initializing target workdir:\n",
"2018-06-19 09:08:45,775 INFO : TestEnv : /root/devlib-target\n",
"2018-06-19 09:08:48,370 INFO : TestEnv : Attempting to read energy model from target\n",
"2018-06-19 09:08:48,375 ERROR : TestEnv : Couldn't read target energy model: Requires cpufreq devlib module. Please ensure \"cpufreq\" is listed in your target/test modules\n",
"2018-06-19 09:08:48,382 INFO : TestEnv : Topology:\n",
"2018-06-19 09:08:48,384 INFO : TestEnv : [[0, 1, 2, 3]]\n",
"2018-06-19 09:08:48,387 WARNING : TestEnv : Unable to identify cluster frequencies\n",
"2018-06-19 09:08:49,295 INFO : TestEnv : Enabled tracepoints:\n",
"2018-06-19 09:08:49,297 INFO : TestEnv : sched_switch\n",
"2018-06-19 09:08:49,299 INFO : TestEnv : Using configuration provided RTApp calibration\n",
"2018-06-19 09:08:49,301 INFO : TestEnv : Using RT-App calibration values:\n",
"2018-06-19 09:08:49,303 INFO : TestEnv : {\"0\": 23, \"1\": 23, \"2\": 23, \"3\": 23}\n",
"2018-06-19 09:08:49,304 INFO : TestEnv : Set results folder to:\n",
"2018-06-19 09:08:49,306 INFO : TestEnv : /home/juri/work/lisa/results/cpuset-cgroup2-waiman-v10\n",
"2018-06-19 09:08:49,308 INFO : TestEnv : Experiment results available also in:\n",
"2018-06-19 09:08:49,309 INFO : TestEnv : /home/juri/work/lisa/results_latest\n"
]
}
],
"source": [
"te = TestEnv(my_conf, force_new=True, wipe=False)\n",
"target = te.target"
]
},
{
"cell_type": "code",
"execution_count": 5,
"metadata": {},
"outputs": [
{
"name": "stderr",
"output_type": "stream",
"text": [
"2018-06-19 09:08:49,320 INFO : root : Target ABI: x86_64, CPus: ['QEMU Virtual version 2.5+', 'QEMU Virtual version 2.5+', 'QEMU Virtual version 2.5+', 'QEMU Virtual version 2.5+']\n"
]
}
],
"source": [
"logging.info(\"Target ABI: %s, CPus: %s\",\n",
" target.abi,\n",
" target.cpuinfo.cpu_names)"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Mount"
]
},
{
"cell_type": "code",
"execution_count": 6,
"metadata": {},
"outputs": [],
"source": [
"target.execute('mount -t cgroup2 none /sys/fs/cgroup');"
]
},
{
"cell_type": "code",
"execution_count": 7,
"metadata": {},
"outputs": [],
"source": [
"target.execute('echo \"+cpuset\" > /sys/fs/cgroup/cgroup.subtree_control');"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Create and modify a single domain root"
]
},
{
"cell_type": "code",
"execution_count": 8,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"['def_root_domain: ', 'doms_cur[0]: 0-3 rd->span: 0-3 (n)', '']"
]
},
"execution_count": 8,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"target.execute('cat /proc/doms_debug').split('\\r\\n')"
]
},
{
"cell_type": "code",
"execution_count": 9,
"metadata": {},
"outputs": [],
"source": [
"target.execute('mkdir /sys/fs/cgroup/group1');"
]
},
{
"cell_type": "code",
"execution_count": 10,
"metadata": {},
"outputs": [],
"source": [
"target.execute('echo 0-1 > /sys/fs/cgroup/group1/cpuset.cpus');"
]
},
{
"cell_type": "code",
"execution_count": 11,
"metadata": {},
"outputs": [],
"source": [
"target.execute('echo 1 > /sys/fs/cgroup/group1/cpuset.sched.domain_root');"
]
},
{
"cell_type": "code",
"execution_count": 12,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"['def_root_domain: ',\n",
" 'doms_cur[0]: 2-3 rd->span: 2-3 (n)',\n",
" 'doms_cur[1]: 0-1 rd->span: 0-1 (n)',\n",
" '']"
]
},
"execution_count": 12,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"target.execute('cat /proc/doms_debug').split('\\r\\n')"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### There are now 2 root domains (2-3 is the root one and 0-1 is group1)"
]
},
{
"cell_type": "code",
"execution_count": 13,
"metadata": {},
"outputs": [],
"source": [
"target.execute('echo 0 > /sys/fs/cgroup/group1/cpuset.cpus');"
]
},
{
"cell_type": "code",
"execution_count": 14,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"['def_root_domain: ',\n",
" 'doms_cur[0]: 1-3 rd->span: 1-3 (n)',\n",
" 'doms_cur[1]: 0 rd->span: 0 (n)',\n",
" '']"
]
},
"execution_count": 14,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"target.execute('cat /proc/doms_debug').split('\\r\\n')"
]
},
{
"cell_type": "code",
"execution_count": 15,
"metadata": {},
"outputs": [
{
"ename": "TargetError",
"evalue": "Got exit code 1\nfrom: echo > /sys/fs/cgroup/group1/cpuset.cpus\nOUTPUT: -bash: echo: write error: Invalid argument\r\n",
"output_type": "error",
"traceback": [
"\u001b[0;31m\u001b[0m",
"\u001b[0;31mTargetError\u001b[0mTraceback (most recent call last)",
"\u001b[0;32m<ipython-input-15-ba2cafa827af>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0mtarget\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mexecute\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m'echo '\u001b[0m\u001b[0;34m' > /sys/fs/cgroup/group1/cpuset.cpus'\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m;\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
"\u001b[0;32m/home/juri/work/lisa/libs/devlib/devlib/target.pyc\u001b[0m in \u001b[0;36mexecute\u001b[0;34m(self, command, timeout, check_exit_code, as_root)\u001b[0m\n\u001b[1;32m 338\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 339\u001b[0m \u001b[0;32mdef\u001b[0m \u001b[0mexecute\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mself\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mcommand\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mtimeout\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mNone\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mcheck_exit_code\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mTrue\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mas_root\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mFalse\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m--> 340\u001b[0;31m \u001b[0;32mreturn\u001b[0m \u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mconn\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mexecute\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mcommand\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mtimeout\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mcheck_exit_code\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mas_root\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m 341\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 342\u001b[0m \u001b[0;32mdef\u001b[0m \u001b[0mbackground\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mself\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mcommand\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mstdout\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0msubprocess\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mPIPE\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mstderr\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0msubprocess\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mPIPE\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mas_root\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mFalse\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
"\u001b[0;32m/home/juri/work/lisa/libs/devlib/devlib/utils/ssh.pyc\u001b[0m in \u001b[0;36mexecute\u001b[0;34m(self, command, timeout, check_exit_code, as_root, strip_colors)\u001b[0m\n\u001b[1;32m 207\u001b[0m \u001b[0;32mif\u001b[0m \u001b[0mexit_code\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 208\u001b[0m \u001b[0mmessage\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;34m'Got exit code {}\\nfrom: {}\\nOUTPUT: {}'\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m--> 209\u001b[0;31m \u001b[0;32mraise\u001b[0m \u001b[0mTargetError\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mmessage\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mformat\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mexit_code\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mcommand\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0moutput\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m 210\u001b[0m \u001b[0;32mexcept\u001b[0m \u001b[0;34m(\u001b[0m\u001b[0mValueError\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mIndexError\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 211\u001b[0m logger.warning(\n",
"\u001b[0;31mTargetError\u001b[0m: Got exit code 1\nfrom: echo > /sys/fs/cgroup/group1/cpuset.cpus\nOUTPUT: -bash: echo: write error: Invalid argument\r\n"
]
}
],
"source": [
"target.execute('echo '' > /sys/fs/cgroup/group1/cpuset.cpus');"
]
},
{
"cell_type": "code",
"execution_count": 16,
"metadata": {},
"outputs": [
{
"ename": "TargetError",
"evalue": "Got exit code 1\nfrom: echo 0-3 > /sys/fs/cgroup/group1/cpuset.cpus\nOUTPUT: -bash: echo: write error: Device or resource busy\r\n",
"output_type": "error",
"traceback": [
"\u001b[0;31m\u001b[0m",
"\u001b[0;31mTargetError\u001b[0mTraceback (most recent call last)",
"\u001b[0;32m<ipython-input-16-ad6096be76e5>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0mtarget\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mexecute\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m'echo 0-3 > /sys/fs/cgroup/group1/cpuset.cpus'\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m;\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
"\u001b[0;32m/home/juri/work/lisa/libs/devlib/devlib/target.pyc\u001b[0m in \u001b[0;36mexecute\u001b[0;34m(self, command, timeout, check_exit_code, as_root)\u001b[0m\n\u001b[1;32m 338\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 339\u001b[0m \u001b[0;32mdef\u001b[0m \u001b[0mexecute\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mself\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mcommand\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mtimeout\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mNone\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mcheck_exit_code\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mTrue\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mas_root\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mFalse\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m--> 340\u001b[0;31m \u001b[0;32mreturn\u001b[0m \u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mconn\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mexecute\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mcommand\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mtimeout\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mcheck_exit_code\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mas_root\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m 341\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 342\u001b[0m \u001b[0;32mdef\u001b[0m \u001b[0mbackground\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mself\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mcommand\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mstdout\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0msubprocess\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mPIPE\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mstderr\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0msubprocess\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mPIPE\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mas_root\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mFalse\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
"\u001b[0;32m/home/juri/work/lisa/libs/devlib/devlib/utils/ssh.pyc\u001b[0m in \u001b[0;36mexecute\u001b[0;34m(self, command, timeout, check_exit_code, as_root, strip_colors)\u001b[0m\n\u001b[1;32m 207\u001b[0m \u001b[0;32mif\u001b[0m \u001b[0mexit_code\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 208\u001b[0m \u001b[0mmessage\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;34m'Got exit code {}\\nfrom: {}\\nOUTPUT: {}'\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m--> 209\u001b[0;31m \u001b[0;32mraise\u001b[0m \u001b[0mTargetError\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mmessage\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mformat\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mexit_code\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mcommand\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0moutput\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m 210\u001b[0m \u001b[0;32mexcept\u001b[0m \u001b[0;34m(\u001b[0m\u001b[0mValueError\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mIndexError\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 211\u001b[0m logger.warning(\n",
"\u001b[0;31mTargetError\u001b[0m: Got exit code 1\nfrom: echo 0-3 > /sys/fs/cgroup/group1/cpuset.cpus\nOUTPUT: -bash: echo: write error: Device or resource busy\r\n"
]
}
],
"source": [
"target.execute('echo 0-3 > /sys/fs/cgroup/group1/cpuset.cpus');"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### Both trying to remove all cpus from group1 and root fails"
]
},
{
"cell_type": "code",
"execution_count": 17,
"metadata": {},
"outputs": [],
"source": [
"target.execute('rmdir /sys/fs/cgroup/group1');"
]
},
{
"cell_type": "code",
"execution_count": 18,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"['def_root_domain: ', 'doms_cur[0]: 0-3 rd->span: 0-3 (n)', '']"
]
},
"execution_count": 18,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"target.execute('cat /proc/doms_debug').split('\\r\\n')"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Create and modify two domain roots"
]
},
{
"cell_type": "code",
"execution_count": 19,
"metadata": {},
"outputs": [],
"source": [
"target.execute('mkdir /sys/fs/cgroup/group1');\n",
"target.execute('mkdir /sys/fs/cgroup/group2');"
]
},
{
"cell_type": "code",
"execution_count": 20,
"metadata": {},
"outputs": [],
"source": [
"target.execute('echo 0-1 > /sys/fs/cgroup/group1/cpuset.cpus');\n",
"target.execute('echo 2 > /sys/fs/cgroup/group2/cpuset.cpus');"
]
},
{
"cell_type": "code",
"execution_count": 21,
"metadata": {},
"outputs": [],
"source": [
"target.execute('echo 1 > /sys/fs/cgroup/group1/cpuset.sched.domain_root');"
]
},
{
"cell_type": "code",
"execution_count": 22,
"metadata": {},
"outputs": [],
"source": [
"target.execute('echo 1 > /sys/fs/cgroup/group2/cpuset.sched.domain_root');"
]
},
{
"cell_type": "code",
"execution_count": 23,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"['def_root_domain: ',\n",
" 'doms_cur[0]: 3 rd->span: 3 (n)',\n",
" 'doms_cur[1]: 0-1 rd->span: 0-1 (n)',\n",
" 'doms_cur[2]: 2 rd->span: 2 (n)',\n",
" '']"
]
},
"execution_count": 23,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"target.execute('cat /proc/doms_debug').split('\\r\\n')"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### 2 domains roots as expected"
]
},
{
"cell_type": "code",
"execution_count": 24,
"metadata": {},
"outputs": [],
"source": [
"target.execute('echo 0 > /sys/fs/cgroup/group1/cpuset.cpus');\n",
"target.execute('echo 1-2 > /sys/fs/cgroup/group2/cpuset.cpus');"
]
},
{
"cell_type": "code",
"execution_count": 25,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"['def_root_domain: ',\n",
" 'doms_cur[0]: 3 rd->span: 3 (n)',\n",
" 'doms_cur[1]: 0 rd->span: 0 (n)',\n",
" 'doms_cur[2]: 1-2 rd->span: 1-2 (n)',\n",
" '']"
]
},
"execution_count": 25,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"target.execute('cat /proc/doms_debug').split('\\r\\n')"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### Which can be modified"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Hotplug"
]
},
{
"cell_type": "code",
"execution_count": 26,
"metadata": {},
"outputs": [],
"source": [
"target.hotplug.offline(2)"
]
},
{
"cell_type": "code",
"execution_count": 27,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"['def_root_domain: ',\n",
" 'doms_cur[0]: 3 rd->span: 3 (n)',\n",
" 'doms_cur[1]: 0 rd->span: 0 (n)',\n",
" 'doms_cur[2]: 1 rd->span: 1 (n)',\n",
" '']"
]
},
"execution_count": 27,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"target.execute('cat /proc/doms_debug').split('\\r\\n')"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### group2 \"lost\" CPU2"
]
},
{
"cell_type": "code",
"execution_count": 28,
"metadata": {},
"outputs": [],
"source": [
"target.hotplug.online(2)"
]
},
{
"cell_type": "code",
"execution_count": 29,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"['def_root_domain: ',\n",
" 'doms_cur[0]: 3 rd->span: 3 (n)',\n",
" 'doms_cur[1]: 0 rd->span: 0 (n)',\n",
" 'doms_cur[2]: 1-2 rd->span: 1-2 (n)',\n",
" '']"
]
},
"execution_count": 29,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"target.execute('cat /proc/doms_debug').split('\\r\\n')"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### But it now has it back, nice."
]
},
{
"cell_type": "code",
"execution_count": 30,
"metadata": {},
"outputs": [],
"source": [
"target.hotplug.offline(2)"
]
},
{
"cell_type": "code",
"execution_count": 31,
"metadata": {},
"outputs": [],
"source": [
"target.execute('rmdir /sys/fs/cgroup/group2');"
]
},
{
"cell_type": "code",
"execution_count": 32,
"metadata": {},
"outputs": [],
"source": [
"target.hotplug.online(2)"
]
},
{
"cell_type": "code",
"execution_count": 33,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"['def_root_domain: ',\n",
" 'doms_cur[0]: 1-3 rd->span: 1-3 (n)',\n",
" 'doms_cur[1]: 0 rd->span: 0 (n)',\n",
" '']"
]
},
"execution_count": 33,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"target.execute('cat /proc/doms_debug').split('\\r\\n')"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 2",
"language": "python",
"name": "python2"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 2
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython2",
"version": "2.7.14"
}
},
"nbformat": 4,
"nbformat_minor": 1
}
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