Address feedback

stress/src/throughput.rs

@@ -30,23 +30,23 @@ where
  })
  .expect("Error setting Ctrl-C handler");
 
- let args: Vec<String> = env::args().collect();
-
  let mut num_threads = num_cpus::get();
- if args.len() >= 2 {
- let arg = args[1].parse::<usize>();
+ let mut args_iter = env::args();
+
+ if let Some(arg_str) = args_iter.nth(1) {
+ let arg = arg_str.parse::<usize>();
 
  if !arg.is_ok() {
- eprintln!("Invalid command line argument '{}' as number of threads. Make sure the value is a positive integer.", args[1]);
+ eprintln!("Invalid command line argument '{}' as number of threads. Make sure the value is a positive integer.", arg_str);
  std::process::exit(1);
  }
 
  let arg_num = arg.unwrap();
 
- if arg_num > 0 && arg_num <= num_threads as i32 {
+ if arg_num > 0 && arg_num <= num_threads {
  num_threads = arg_num as usize;
  } else {
- eprintln!("Invalid command line argument {} as number of threads. Make sure the value is above 0 and less than or equal to {}.", arg_num, num_threads);
+ eprintln!("Invalid command line argument {} as number of threads. Make sure the value is above 0 and less than or equal to number of available logical cores ({}).", arg_num, num_threads);
  std::process::exit(1);
  }
  }