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Code Issues

Export max_usage in cgroups v2 mode (#2802)

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Signed-off-by: Heran Yang <heran55@126.com>
This commit is contained in:
Heran Yang 2024-05-29 20:24:47 +08:00 committed by GitHub
parent a7572588ad
commit e61b693df5
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1 changed files with 25 additions and 1 deletions
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26
crates/libcgroups/src/v2/memory.rs
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@ -77,6 +77,9 @@ impl Memory {
stats::parse_single_value(&cgroup_path.join(format!("{}.{}", file_prefix, "current")))?;
let limit =
stats::parse_single_value(&cgroup_path.join(format!("{}.{}", file_prefix, "max")))?;
let max_usage =
stats::parse_single_value(&cgroup_path.join(format!("{}.{}", file_prefix, "peak")))
.unwrap_or(0);
let events = stats::parse_flat_keyed_data(
&cgroup_path.join(format!("{}.{}", file_prefix, "events")),
@ -89,9 +92,9 @@ impl Memory {
Ok(MemoryData {
usage,
max_usage,
fail_count,
limit,
..Default::default()
})
}
@ -377,4 +380,25 @@ mod tests {
assert_eq!(actual, expected);
}
#[test]
fn test_get_memory_data_with_peak() {
let tmp = tempfile::tempdir().unwrap();
set_fixture(tmp.path(), "memory.current", "12500\n").unwrap();
set_fixture(tmp.path(), "memory.max", "25000\n").unwrap();
set_fixture(tmp.path(), "memory.peak", "20000\n").unwrap();
let events = ["slab 5", "anon 13", "oom 3"].join("\n");
set_fixture(tmp.path(), "memory.events", &events).unwrap();
let actual =
Memory::get_memory_data(tmp.path(), "memory", "oom").expect("get cgroup stats");
let expected = MemoryData {
usage: 12500,
max_usage: 20000,
limit: 25000,
fail_count: 3,
};
assert_eq!(actual, expected);
}
}