62 lines
1.6 KiB
Rust
62 lines
1.6 KiB
Rust
use std::io::{self, Write};
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use std::thread;
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use std::time::{Duration, Instant};
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mod cpu;
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mod gpu;
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mod mem;
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mod temp;
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fn parse_interval_ms() -> u64 {
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let args: Vec<String> = std::env::args().collect();
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let mut i = 1;
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while i < args.len() {
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if args[i] == "--interval" {
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if let Some(ms) = args.get(i + 1).and_then(|s| s.parse().ok()) {
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return ms;
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}
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}
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i += 1;
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}
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1000
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}
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fn main() {
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let interval = Duration::from_millis(parse_interval_ms());
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let stdout = io::stdout();
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let mut out = io::BufWriter::new(stdout.lock());
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let mut prev: Vec<cpu::Sample> = vec![];
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let mut freqs: Vec<f64> = vec![];
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let gpu = gpu::detect_gpu();
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let mut tick = 0u64;
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loop {
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let t0 = Instant::now();
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let curr = cpu::read_stat();
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if tick.is_multiple_of(2) {
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freqs = cpu::read_core_freqs();
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mem::emit_mem(&mut out);
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}
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cpu::emit_cpu(&mut out, &prev, &curr, &freqs);
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prev = curr;
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if tick.is_multiple_of(4) {
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temp::emit_temp(&mut out);
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// AMD sysfs is instant; NVIDIA calls nvidia-smi so runs less often
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match &gpu {
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gpu::GpuBackend::Amd { .. } => gpu::emit_gpu(&mut out, &gpu),
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gpu::GpuBackend::Nvidia if tick.is_multiple_of(8) => gpu::emit_gpu(&mut out, &gpu),
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_ => {}
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}
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}
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let _ = out.flush();
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tick += 1;
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let elapsed = t0.elapsed();
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if elapsed < interval {
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thread::sleep(interval - elapsed);
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}
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}
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}
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