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Reilly Wood f93033c20b
Fix CPU usage info in sys (#8321) 
Closes #8264. This PR does a few things to fix the `usage` column in
`sys.cpu`:

1. Sleep a while (~400ms) between calls to `sys.refresh_cpu()`, [as
required by
`sysinfo`](https://docs.rs/sysinfo/latest/sysinfo/trait.SystemExt.html#method.refresh_cpu)
2. Change `sys` to return a `LazyRecord` (so you can do things like `sys
| get host` instantly without waiting for CPU info)
3. Update our `sysinfo` dependency to [fix CPU usage calculations on
Linux](https://github.com/GuillaumeGomez/sysinfo/pull/946)

CPU usage is no longer always reported as zero:


![image](https://user-images.githubusercontent.com/26268125/222929775-5e9cbe18-95d9-4ecb-baf8-1e843f5c7086.png)
2023-03-04 14:48:34 -08:00
..
src Throw out error if external command in subexpression is failed to run (#8204) 2023-03-01 13:50:38 +02:00
Cargo.toml Fix CPU usage info in sys (#8321) 2023-03-04 14:48:34 -08:00
LICENSE Include license text in all crates (#5094) 2022-04-08 10:47:13 +02:00