Is your feature request related to a problem or challenge? Please describe what you are trying to do.
We will optimize sort string_view performance in this ticket, it will be promising for sort string_view with custom compare.

Describe the solution you'd like
We will optimize sort string_view performance in this ticket, it will be promising for sort string_view with custom compare.

Now the default cmp will compare the u8 level, we can extend to u32 even u128 for inlined case.

Describe alternatives you've considered

Additional context