Re: [REPORT] cfs-v4 vs sd-0.44

Ulrich Drepper
2007-04-21T19:49:54Z

On 4/21/07, Kyle Moffett <mrmacman_g4@mac.com> wrote:
> It might be nice if it was possible to actively contribute your CPU
> time to a child process. For example:
> int sched_donate(pid_t pid, struct timeval *time, int percentage);

If you do this, and it has been requested many a times, then please
generalize it. We have the same issue with futexes. If a FUTEX_WAIT
call is issues the remaining time in the slot should be given to the
thread currently owning the futex. For non-PI futexes this needs an
extension of the interface but I would be up for that. It can have
big benefits on the throughput of an application.