External/cloud-hypervisor
1
0
Fork 0
mirror of https://github.com/cloud-hypervisor/cloud-hypervisor.git synced 2025-02-08 12:41:35 +00:00
Code Issues Packages Projects Releases Wiki Activity

tests: Print out details for smaps in test_memory_overhead

Browse Source 
To aid the debugging of why the test_memory_overhead sometimes fails
print a details of all the named regions that it uses in its
calculation.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2020-05-07 14:04:23 +01:00 committed by Sebastien Boeuf
parent 250f825f58
commit 9adc32a043
1 changed files with 27 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
tests/integration.rs
View File

@ -18,6 +18,7 @@ extern crate lazy_static;
mod tests { mod tests {
#![allow(dead_code)] #![allow(dead_code)]
use ssh2::Session; use ssh2::Session;
use std::collections::HashMap;
use std::env; use std::env;
use std::ffi::OsStr; use std::ffi::OsStr;
use std::fs; use std::fs;
@ -3720,15 +3721,24 @@ mod tests {
}); });
} }
fn get_vmm_overhead(pid: u32, guest_memory_size: u32) -> u32 { fn _get_vmm_overhead(pid: u32, guest_memory_size: u32) -> HashMap<String, u32> {
let smaps = fs::File::open(format!("/proc/{}/smaps", pid)).unwrap(); let smaps = fs::File::open(format!("/proc/{}/smaps", pid)).unwrap();
let reader = io::BufReader::new(smaps); let reader = io::BufReader::new(smaps);
let mut total = 0;
let mut skip_map: bool = false; let mut skip_map: bool = false;
let mut region_name: String = "".to_string();
let mut region_maps = HashMap::new();
for line in reader.lines() { for line in reader.lines() {
let l = line.unwrap(); let l = line.unwrap();
if l.contains('-') {
let values: Vec<&str> = l.split_whitespace().collect();
region_name = values.last().unwrap().trim().to_string();
if region_name == "0" {
region_name = "anonymous".to_string()
}
}
// Each section begins with something that looks like: // Each section begins with something that looks like:
// Size: 2184 kB // Size: 2184 kB
if l.starts_with("Size:") { if l.starts_with("Size:") {
@ -3743,11 +3753,24 @@ mod tests {
// If this is a map we're taking into account, then we only // If this is a map we're taking into account, then we only
// count the RSS. The sum of all counted RSS is the VMM overhead. // count the RSS. The sum of all counted RSS is the VMM overhead.
if !skip_map && l.starts_with("Rss") { if !skip_map && l.starts_with("Rss:") {
let values: Vec<&str> = l.split_whitespace().collect(); let values: Vec<&str> = l.split_whitespace().collect();
total += values[1].trim().parse::<u32>().unwrap(); let value = values[1].trim().parse::<u32>().unwrap();
*region_maps.entry(region_name.clone()).or_insert(0) += value;
} }
} }
region_maps
}
fn get_vmm_overhead(pid: u32, guest_memory_size: u32) -> u32 {
let mut total = 0;
for (region_name, value) in &_get_vmm_overhead(pid, guest_memory_size) {
eprintln!("{}: {}", region_name, value);
total += value;
}
total total
} }