mirror of
https://github.com/containers/youki
synced 2024-06-02 04:46:13 +02:00
Merge pull request #537 from YJDoc2/cgroups_blkio
Add Cgroup V1 block IO integration test
This commit is contained in:
commit
fc70a5ed7c
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@ -76,6 +76,7 @@ fn main() -> Result<()> {
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let cgroup_v2_cpu = cgroups::cpu::v2::get_test_group();
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let cgroup_v1_memory = cgroups::memory::get_test_group();
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let cgroup_v1_network = cgroups::network::get_test_group();
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let cgroup_v1_blkio = cgroups::blkio::get_test_group();
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let seccomp_notify = get_seccomp_notify_test();
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tm.add_test_group(&cl);
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@ -88,6 +89,7 @@ fn main() -> Result<()> {
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tm.add_test_group(&cgroup_v2_cpu);
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tm.add_test_group(&cgroup_v1_memory);
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tm.add_test_group(&cgroup_v1_network);
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tm.add_test_group(&cgroup_v1_blkio);
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tm.add_test_group(&seccomp_notify);
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tm.add_cleanup(Box::new(cgroups::cleanup_v1));
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@ -0,0 +1,630 @@
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use std::{
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fs,
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path::{Path, PathBuf},
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};
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use anyhow::{bail, Context, Result};
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use oci_spec::runtime::{
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LinuxBlockIo, LinuxBlockIoBuilder, LinuxBuilder, LinuxResourcesBuilder,
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LinuxThrottleDeviceBuilder, LinuxWeightDeviceBuilder, Spec, SpecBuilder,
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};
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use test_framework::{test_result, ConditionalTest, TestGroup, TestResult};
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use crate::utils::{
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test_outside_container,
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test_utils::{check_container_created, CGROUP_ROOT},
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};
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// -----> README
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// for this test to work for all parameters, the kernel needs to be compiled with CFQ IO schedular
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// for some reason, Ubuntu and other distributions might come with a kernel compiled with mq-deadline
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// schedular, which does not expose/support options such as blkio.weight, blkio.weight_device
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// for these we can skip all the tests, or skip the corresponding tests
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// the current implementation skips corresponding tests, so one can test atleast bps and iops
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// device on such systems
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// check https://superuser.com/questions/1449688/a-couple-of-blkio-cgroup-files-are-not-present-in-linux-kernel-5
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// and https://github.com/opencontainers/runc/issues/140
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// for more info on this
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#[derive(Debug, Default)]
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struct WeightDevice {
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major: i64,
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minor: i64,
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weight: Option<u16>,
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leaf_weight: Option<u16>,
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}
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#[derive(Debug, Default)]
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struct ThrottleDevice {
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major: i64,
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minor: i64,
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rate: u64,
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}
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#[derive(Debug, Default)]
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struct BlockIO {
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weight: u16,
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leaf_weight: u16,
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weight_devices: Vec<WeightDevice>,
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throttle_read_bps_devices: Vec<ThrottleDevice>,
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throttle_write_bps_devices: Vec<ThrottleDevice>,
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throttle_read_iops_devices: Vec<ThrottleDevice>,
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throttle_write_iops_devices: Vec<ThrottleDevice>,
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}
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fn can_run() -> bool {
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Path::new("/sys/fs/cgroup/blkio").exists()
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}
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fn supports_weight() -> bool {
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Path::new("/sys/fs/cgroup/blkio/blkio.weight").exists()
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}
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fn supports_weight_devices() -> bool {
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Path::new("/sys/fs/cgroup/blkio/blkio.weight_devices").exists()
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}
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// even though the mq-deadline does have these,we better check in case
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// for some system these are absent
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fn supports_throttle_bps() -> bool {
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Path::new("/sys/fs/cgroup/blkio/blkio.throttle.read_bps_device").exists()
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}
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fn supports_throttle_iops() -> bool {
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Path::new("/sys/fs/cgroup/blkio/blkio.throttle.read_iops_device").exists()
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}
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fn parse_device_data<'a>(device_type: &'static str, line: &'a str) -> Result<(i64, i64, &'a str)> {
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let (device_id, value) = line
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.split_once(" ")
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.with_context(|| format!("invalid {} device format : found {}", device_type, line))?;
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let (major_str, minor_str) = device_id.split_once(":").with_context(|| {
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format!(
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"invalid major-minor number format for {} device : found {}",
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device_type, device_id
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)
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})?;
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let major: i64 = major_str.parse().with_context(|| {
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format!(
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"Error in parsing {} device major number : found {}",
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device_type, major_str
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)
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})?;
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let minor: i64 = minor_str.parse().with_context(|| {
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format!(
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"Error in parsing {} device minor number : found {}",
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device_type, minor_str
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)
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})?;
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Ok((major, minor, value))
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}
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fn create_spec(cgroup_name: &str, block_io: LinuxBlockIo) -> Result<Spec> {
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let spec = SpecBuilder::default()
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.linux(
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LinuxBuilder::default()
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.cgroups_path(Path::new("/runtime-test").join(cgroup_name))
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.resources(
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LinuxResourcesBuilder::default()
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.block_io(block_io)
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.build()
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.context("failed to build resource spec")?,
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)
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.build()
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.context("failed to build linux spec")?,
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)
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.build()
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.context("failed to build spec")?;
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Ok(spec)
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}
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/// parses /sys/fs/cgroup/blkio and creates BlockIO struct
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fn get_blkio_data(path: &Path) -> Result<BlockIO> {
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let mut device = BlockIO::default();
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// we assume that if weight is present, leaf_weight will also be present
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if supports_weight() {
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// weight
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let weight_path = path.join("blkio.weight");
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let weight_string = fs::read_to_string(&weight_path)
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.with_context(|| format!("error in reading block io weight from {:?}", weight_path))?;
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device.weight = weight_string.parse().with_context(|| {
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format!("error in parsing block io weight : found {}", weight_string)
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})?;
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// leaf weight
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let leaf_weight_path = path.join("blkio.leaf_weight");
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let leaf_weight_string = fs::read_to_string(&leaf_weight_path).with_context(|| {
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format!(
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"error in reading block io leaf weight from {:?}",
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leaf_weight_path
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)
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})?;
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device.leaf_weight = leaf_weight_string.parse().with_context(|| {
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format!(
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"error in parsing block io weight : found {}",
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leaf_weight_string
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)
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})?;
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}
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// weight devices section ------------
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// we assume if device_weight is supported, then device_leaf_weight is also supported
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if supports_weight_devices() {
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// device weight
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let device_weight_path = path.join("blkio.weight_device");
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let device_weight_string = fs::read_to_string(&device_weight_path).with_context(|| {
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format!(
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"error in reading block io weight device from {:?}",
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device_weight_path
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)
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})?;
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let mut weight_devices = Vec::new();
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// format is <major>:<minor> <bytes_per_second>
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for line in device_weight_string.lines() {
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let (major, minor, weight_str) = parse_device_data("weight", line)?;
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weight_devices.push(WeightDevice {
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major,
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minor,
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weight: Some(weight_str.parse().with_context(|| {
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format!(
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"error in parsing weight of weight device, found {}",
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weight_str
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)
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})?),
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leaf_weight: None,
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});
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}
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// device leaf weight
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let device_leaf_weight_path = path.join("blkio.leaf_weight_device");
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let device_leaf_weight_string =
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fs::read_to_string(&device_leaf_weight_path).with_context(|| {
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format!(
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"error in reading block io leaf weight device from {:?}",
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device_leaf_weight_path
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)
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})?;
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for line in device_leaf_weight_string.lines() {
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let (major, minor, weight_str) = parse_device_data("weight", line)?;
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let leaf_weight: u16 = weight_str.parse().with_context(|| {
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format!(
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"error in parsing leaf weight of weight device : found {}",
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weight_str
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)
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})?;
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let mut found = false;
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for dev in &mut weight_devices {
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if dev.major == major && dev.minor == minor {
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dev.leaf_weight = Some(leaf_weight);
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found = true;
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}
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}
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if !found {
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weight_devices.push(WeightDevice {
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major,
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minor,
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weight: None,
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leaf_weight: Some(leaf_weight),
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});
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}
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}
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device.weight_devices = weight_devices;
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}
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// throttle devices section -----
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// we assume that if read_bps is supported, write_bps is also supported
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if supports_throttle_bps() {
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// throttle read bps
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let throttle_read_bps_path = path.join("blkio.throttle.read_bps_device");
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let throttle_read_bps_string =
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fs::read_to_string(&throttle_read_bps_path).with_context(|| {
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format!(
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"error in reading block io read bps device from {:?}",
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throttle_read_bps_path
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)
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})?;
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let mut throttle_devices = Vec::new();
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for line in throttle_read_bps_string.lines() {
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let (major, minor, rate_str) = parse_device_data("throttle read bps", line)?;
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throttle_devices.push(ThrottleDevice {
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major,
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minor,
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rate: rate_str.parse().with_context(|| {
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format!(
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"error in parsing throttle read bps rate : found {}",
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rate_str
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)
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})?,
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});
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}
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device.throttle_read_bps_devices = throttle_devices;
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// throttle write bps
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let throttle_write_bps_path = path.join("blkio.throttle.write_bps_device");
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let throttle_write_bps_string =
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fs::read_to_string(&throttle_write_bps_path).with_context(|| {
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format!(
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"error in reading block io write bps device from {:?}",
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throttle_write_bps_path
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)
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})?;
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let mut throttle_devices = Vec::new();
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for line in throttle_write_bps_string.lines() {
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let (major, minor, rate_str) = parse_device_data("throttle write bps", line)?;
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throttle_devices.push(ThrottleDevice {
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major,
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minor,
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rate: rate_str.parse().with_context(|| {
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format!(
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"error in parsing throttle write bps rate : found {}",
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rate_str
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)
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})?,
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});
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}
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device.throttle_write_bps_devices = throttle_devices;
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}
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// we assume that is read_iops is supported, write_iops is also supported
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if supports_throttle_iops() {
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// throttle read iops
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let throttle_read_iops_path = path.join("blkio.throttle.read_iops_device");
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let throttle_read_iops_string =
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fs::read_to_string(&throttle_read_iops_path).with_context(|| {
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format!(
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"error in reading block io read iops device from {:?}",
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throttle_read_iops_path
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)
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})?;
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let mut throttle_devices = Vec::new();
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for line in throttle_read_iops_string.lines() {
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let (major, minor, rate_str) = parse_device_data("throttle read iops", line)?;
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throttle_devices.push(ThrottleDevice {
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major,
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minor,
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rate: rate_str.parse().with_context(|| {
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format!(
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"error in parsing throttle read iops rate : found {}",
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rate_str
|
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)
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})?,
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});
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}
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device.throttle_read_iops_devices = throttle_devices;
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// throttle write iops
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let throttle_write_iops_path = path.join("blkio.throttle.write_iops_device");
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||||
let throttle_write_iops_string = fs::read_to_string(&throttle_write_iops_path)
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.with_context(|| {
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format!(
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"error in reading block io write iops device from {:?}",
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throttle_write_iops_path
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)
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})?;
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let mut throttle_devices = Vec::new();
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for line in throttle_write_iops_string.lines() {
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let (major, minor, rate_str) = parse_device_data("throttle write iop", line)?;
|
||||
throttle_devices.push(ThrottleDevice {
|
||||
major,
|
||||
minor,
|
||||
rate: rate_str.parse().with_context(|| {
|
||||
format!(
|
||||
"error in parsing throttle write iops rate : found {}",
|
||||
rate_str
|
||||
)
|
||||
})?,
|
||||
});
|
||||
}
|
||||
device.throttle_write_iops_devices = throttle_devices;
|
||||
}
|
||||
|
||||
Ok(device)
|
||||
}
|
||||
|
||||
/// validates the BlockIO structure parsed from /sys/fs/cgroup/blkio
|
||||
/// with the spec
|
||||
fn validate_block_io(cgroup_name: &str, spec: &Spec) -> Result<()> {
|
||||
let cgroup_path = PathBuf::from(CGROUP_ROOT)
|
||||
.join("blkio/runtime-test")
|
||||
.join(cgroup_name);
|
||||
let block_io = get_blkio_data(&cgroup_path)?;
|
||||
|
||||
let resources = spec.linux().as_ref().unwrap().resources().as_ref().unwrap();
|
||||
let spec_block_io = resources.block_io().as_ref().unwrap();
|
||||
// weight ------
|
||||
if supports_weight() {
|
||||
if spec_block_io.weight().is_none() {
|
||||
bail!("spec block io weight is none");
|
||||
}
|
||||
if spec_block_io.weight().unwrap() != block_io.weight {
|
||||
bail!(
|
||||
"block io weight is set incorrectly, expected {}, actual {}",
|
||||
spec_block_io.weight().unwrap(),
|
||||
block_io.weight,
|
||||
);
|
||||
}
|
||||
if spec_block_io.leaf_weight().is_none() {
|
||||
bail!("spec block io leaf weight is none");
|
||||
}
|
||||
if spec_block_io.leaf_weight().unwrap() != block_io.leaf_weight {
|
||||
bail!(
|
||||
"block io leaf weight is set incorrectly, expected {}, actual {}",
|
||||
spec_block_io.leaf_weight().unwrap(),
|
||||
block_io.leaf_weight,
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
// weight devices ------
|
||||
if supports_weight_devices() {
|
||||
for spec_device in spec_block_io.weight_device().as_ref().unwrap() {
|
||||
let spec_major = spec_device.major();
|
||||
let spec_minor = spec_device.minor();
|
||||
let mut found = false;
|
||||
for device in &block_io.weight_devices {
|
||||
if device.major == spec_major && device.minor == spec_minor {
|
||||
found = true;
|
||||
if device.weight != spec_device.weight() {
|
||||
bail!(
|
||||
"blkio weight is set incorrectly for device {}:{}, expected {:?}, found {:?}",
|
||||
spec_major,
|
||||
spec_minor,
|
||||
spec_device.weight(),
|
||||
device.weight
|
||||
);
|
||||
}
|
||||
if device.leaf_weight != spec_device.leaf_weight() {
|
||||
bail!(
|
||||
"blkio leaf weight is set incorrectly for device {}:{}, expected {:?}, found {:?}",
|
||||
spec_major,
|
||||
spec_minor,
|
||||
spec_device.leaf_weight(),
|
||||
device.leaf_weight
|
||||
);
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
if !found {
|
||||
bail!(
|
||||
"blkio weight device {}:{} not found, exists in spec",
|
||||
spec_major,
|
||||
spec_minor
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
// throttle bps ------
|
||||
if supports_throttle_bps() {
|
||||
for spec_device in spec_block_io.throttle_read_bps_device().as_ref().unwrap() {
|
||||
let spec_major = spec_device.major();
|
||||
let spec_minor = spec_device.minor();
|
||||
let mut found = false;
|
||||
for device in &block_io.throttle_read_bps_devices {
|
||||
if device.major == spec_major && device.minor == spec_minor {
|
||||
found = true;
|
||||
if device.rate != spec_device.rate() {
|
||||
bail!(
|
||||
"blkio throttle read bps rate is set incorrectly for device {}:{}, expected {}, found {}",
|
||||
spec_major,
|
||||
spec_minor,
|
||||
spec_device.rate(),
|
||||
device.rate
|
||||
);
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
if !found {
|
||||
bail!(
|
||||
"blkio throttle read bps device {}:{} not found, exists in spec",
|
||||
spec_major,
|
||||
spec_minor
|
||||
);
|
||||
}
|
||||
}
|
||||
for spec_device in spec_block_io.throttle_write_bps_device().as_ref().unwrap() {
|
||||
let spec_major = spec_device.major();
|
||||
let spec_minor = spec_device.minor();
|
||||
let mut found = false;
|
||||
for device in &block_io.throttle_write_bps_devices {
|
||||
if device.major == spec_major && device.minor == spec_minor {
|
||||
found = true;
|
||||
if device.rate != spec_device.rate() {
|
||||
bail!(
|
||||
"blkio throttle write bps rate is set incorrectly for device {}:{}, expected {}, found {}",
|
||||
spec_major,
|
||||
spec_minor,
|
||||
spec_device.rate(),
|
||||
device.rate
|
||||
);
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
if !found {
|
||||
bail!(
|
||||
"blkio throttle write bps device {}:{} not found, exists in spec",
|
||||
spec_major,
|
||||
spec_minor
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// throttle iops ------
|
||||
if supports_throttle_iops() {
|
||||
for spec_device in spec_block_io.throttle_read_iops_device().as_ref().unwrap() {
|
||||
let spec_major = spec_device.major();
|
||||
let spec_minor = spec_device.minor();
|
||||
let mut found = false;
|
||||
for device in &block_io.throttle_read_iops_devices {
|
||||
if device.major == spec_major && device.minor == spec_minor {
|
||||
found = true;
|
||||
if device.rate != spec_device.rate() {
|
||||
bail!(
|
||||
"blkio throttle read iops rate is set incorrectly for device {}:{}, expected {}, found {}",
|
||||
spec_major,
|
||||
spec_minor,
|
||||
spec_device.rate(),
|
||||
device.rate
|
||||
);
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
if !found {
|
||||
bail!(
|
||||
"blkio throttle read iops device {}:{} not found, exists in spec",
|
||||
spec_major,
|
||||
spec_minor
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
for spec_device in spec_block_io.throttle_write_iops_device().as_ref().unwrap() {
|
||||
let spec_major = spec_device.major();
|
||||
let spec_minor = spec_device.minor();
|
||||
let mut found = false;
|
||||
for device in &block_io.throttle_write_iops_devices {
|
||||
if device.major == spec_major && device.minor == spec_minor {
|
||||
found = true;
|
||||
if device.rate != spec_device.rate() {
|
||||
bail!(
|
||||
"blkio throttle write iops rate is set incorrectly for device {}:{}, expected {}, found {}",
|
||||
spec_major,
|
||||
spec_minor,
|
||||
spec_device.rate(),
|
||||
device.rate
|
||||
);
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
if !found {
|
||||
bail!(
|
||||
"blkio throttle write iops device {}:{} not found, exists in spec",
|
||||
spec_major,
|
||||
spec_minor
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn test_blkio(test_name: &str, rate: u64, empty: bool) -> TestResult {
|
||||
// these "magic" numbers are taken from the original tests
|
||||
// https://github.com/opencontainers/runtime-tools/blob/1684d131456a6bc99b8e96aa4a99783f21e58d79/validation/linux_cgroups_blkio/linux_cgroups_blkio.go#L13-L20
|
||||
let weight: u16 = 500;
|
||||
let leaf_weight: u16 = 300;
|
||||
let major: i64 = 8;
|
||||
let minor: i64 = 0;
|
||||
|
||||
let mut block_io_builder = LinuxBlockIoBuilder::default();
|
||||
|
||||
if !empty && supports_weight() {
|
||||
block_io_builder = block_io_builder.weight(weight).leaf_weight(leaf_weight)
|
||||
}
|
||||
if supports_weight_devices() {
|
||||
block_io_builder = block_io_builder.weight_device(vec![
|
||||
LinuxWeightDeviceBuilder::default()
|
||||
.major(major)
|
||||
.minor(minor)
|
||||
.weight(weight)
|
||||
.build()
|
||||
.unwrap(),
|
||||
LinuxWeightDeviceBuilder::default()
|
||||
.major(major)
|
||||
.minor(minor)
|
||||
.leaf_weight(leaf_weight)
|
||||
.build()
|
||||
.unwrap(),
|
||||
])
|
||||
}
|
||||
if supports_throttle_bps() {
|
||||
block_io_builder = block_io_builder
|
||||
.throttle_read_bps_device(vec![LinuxThrottleDeviceBuilder::default()
|
||||
.major(major)
|
||||
.minor(minor)
|
||||
.rate(rate)
|
||||
.build()
|
||||
.unwrap()])
|
||||
.throttle_write_bps_device(vec![LinuxThrottleDeviceBuilder::default()
|
||||
.major(major)
|
||||
.minor(minor)
|
||||
.rate(rate)
|
||||
.build()
|
||||
.unwrap()])
|
||||
}
|
||||
if supports_throttle_iops() {
|
||||
block_io_builder = block_io_builder
|
||||
.throttle_read_iops_device(vec![LinuxThrottleDeviceBuilder::default()
|
||||
.major(major)
|
||||
.minor(minor)
|
||||
.rate(rate)
|
||||
.build()
|
||||
.unwrap()])
|
||||
.throttle_write_iops_device(vec![LinuxThrottleDeviceBuilder::default()
|
||||
.major(major)
|
||||
.minor(minor)
|
||||
.rate(rate)
|
||||
.build()
|
||||
.unwrap()]);
|
||||
}
|
||||
let spec = create_spec(
|
||||
test_name,
|
||||
block_io_builder
|
||||
.build()
|
||||
.context("failed to build block io spec")
|
||||
.unwrap(),
|
||||
)
|
||||
.unwrap();
|
||||
|
||||
test_outside_container(spec.clone(), &|data| {
|
||||
test_result!(check_container_created(&data));
|
||||
test_result!(validate_block_io(test_name, &spec));
|
||||
TestResult::Passed
|
||||
})
|
||||
}
|
||||
|
||||
pub fn get_test_group<'a>() -> TestGroup<'a> {
|
||||
let mut test_group = TestGroup::new("cgroup_v1_blkio");
|
||||
let non_empty_100kb = ConditionalTest::new(
|
||||
"non_empty_100kb",
|
||||
Box::new(can_run),
|
||||
Box::new(|| test_blkio("non_empty_100kb", 102400, false)),
|
||||
);
|
||||
|
||||
let non_empty_200kb = ConditionalTest::new(
|
||||
"non_empty_200kb",
|
||||
Box::new(can_run),
|
||||
Box::new(|| test_blkio("non_empty_200kb", 204800, false)),
|
||||
);
|
||||
let empty_100kb = ConditionalTest::new(
|
||||
"empty_100kb",
|
||||
Box::new(can_run),
|
||||
Box::new(|| test_blkio("empty_100kb", 102400, true)),
|
||||
);
|
||||
let empty_200kb = ConditionalTest::new(
|
||||
"empty_200kb",
|
||||
Box::new(can_run),
|
||||
Box::new(|| test_blkio("empty_200kb", 204800, true)),
|
||||
);
|
||||
|
||||
test_group.add(vec![
|
||||
Box::new(non_empty_100kb),
|
||||
Box::new(non_empty_200kb),
|
||||
Box::new(empty_100kb),
|
||||
Box::new(empty_200kb),
|
||||
]);
|
||||
test_group
|
||||
}
|
|
@ -3,7 +3,7 @@ use std::path::{Component::RootDir, Path, PathBuf};
|
|||
use anyhow::{Context, Result};
|
||||
use procfs::process::Process;
|
||||
use std::fs;
|
||||
|
||||
pub mod blkio;
|
||||
pub mod cpu;
|
||||
pub mod memory;
|
||||
pub mod network;
|
||||
|
|
Loading…
Reference in New Issue