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perf: break early after parsing required meminfo

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Also a match statement for compiler magic.
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ErrorNoInternet 2024-08-15 16:36:54 +08:00
commit 50827c1847
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1 changed files with 10 additions and 4 deletions
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14
src/system.rs
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@ -48,10 +48,16 @@ pub fn get_memory_usage() -> Result<String, io::Error> {
for line in std::fs::read_to_string("/proc/meminfo")?.lines() { for line in std::fs::read_to_string("/proc/meminfo")?.lines() {
let mut split = line.split_whitespace(); let mut split = line.split_whitespace();
let key = split.next().unwrap_or(""); let key = split.next().unwrap_or("");
if key == "MemTotal:" {
total_memory_kb = split.next().unwrap_or("0").parse().unwrap_or(0.0); match key {
} else if key == "MemAvailable:" { "MemTotal:" => total_memory_kb = split.next().unwrap_or("0").parse().unwrap_or(0.0),
available_memory_kb = split.next().unwrap_or("0").parse().unwrap_or(0.0); "MemAvailable:" => {
available_memory_kb = split.next().unwrap_or("0").parse().unwrap_or(0.0);
// MemTotal comes before MemAvailable, stop parsing
break;
}
_ => (),
} }
} }