Re: MPS: User GC customizations

["Gerd Möllmann" <gerd.moellmann@gmail.com>]

Pip Cet <pipcet@protonmail.com> writes:

> On Thursday, July 4th, 2024 at 13:58, Eli Zaretskii <eliz@gnu.org> wrote:
>> ‘interval’ is the time, in seconds, the MPS is permitted to take.
>> It must not be negative, but may be ‘0.0’.
>> [...]
>> mps_arena_step() allows the client program to make use
>> of idle time to do some garbage collection, for example when it is
>> waiting for interactive input. The MPS makes every effort to
>> return from this function within ‘interval’ seconds, but cannot
>> guarantee to do so, as it may need to call your own scanning code.
>> It uses ‘multiplier’ to decide whether to commence long-duration
>> operations that consume CPU (such as a full collection): it will
>> only start such an operation if it is expected to be completed
>> within ‘multiplier * interval’ seconds.
>
> Why are we passing 0 for "multiplier", then? Should that be 1?

It's just my interpretation of 

     ‘multiplier’ is the number of further similar calls that the client
     program expects to make during this idle period.

IOW, I don't expect that I'll call mps_arena_step again in this period.
But actually, I don't know, so I thought 0 was appropriate.