Re: [RFD] posix-timers: CRIU woes

[Peter Zijlstra]

On Thu, May 11, 2023 at 12:12:32PM +0800, Pavel Tikhomirov wrote:
> Not sure how kernel memory consumption increases with sparse timer IDs,
> global hashtable (posix_timers_hashtable) is the same size anyway, entries
> in hlists can be distributed differently as hash depends on id directly but
> we have same number of entries. Probably I miss something, why do we need
> dense IDs?

The proposal was to remove the global hash and use a signal_struct based
xarray instead.