Re: [RFC PATCH] Documentation/rv: Explain epoll and aborted sleeps

[Chao Liu]

On Sat, Jul 25, 2026 at 12:00:06AM +0800, Chao Liu wrote:
> Results
> -------
> 
> The first two rows compare arm64 without and with the experimental
> mapping. The x86_64 row is the unmodified cross-check using its native
> `__NR_epoll_wait`. The arm64 rows enter through `epoll_pwait`.
> 
> Each case was run five times. `M [L-H]` means median
To correct the ambiguity of my last email (sorry for the trouble):
the data in each entry is formatted as M[L-H]. 

For example, in the second column of "Ep abort": 26 [20-28].

> `[minimum-maximum]`; a single value means all five runs had that result.
> 
> +----------------+------------------+------------+---------------+--------+
> | Case           | P1 err           | Ep abort   | PI block      | P2 err |
> +----------------+------------------+------------+---------------+--------+
> | arm64 baseline | 2043 [2031-2047] | 0          | 0             | 1      |
> | arm64 mapping  | 0                | 26 [20-28] | 355 [308-399] | 1      |
> | x86_64 native  | 0                | 31 [25-92] | 201 [147-204] | 1      |
> +----------------+------------------+------------+---------------+--------+
> 

Thanks,
Chao