On Wed, Jun 14, 2017 at 13:50 +1000, David Gwynne wrote: > i have a few things left to do in the pools per cpu caches, one of > which is make their activity visibile. to that end, here's a diff > provides a way for userland to request stats from the per cpu caches, > and uses that in systat so you can watch them. > > there are two added pool sysctls. one copies an array of stats from > each cpus cache. the interesting bits in those stats are how many > items each cpu handled, and how many list operations the cpu did > against the global pool cache. > > the second sysctl reports stats about the global pool cache. currently > this is the target for the list length the cpus build is, how many > lists its holding, and how many times the gc has moved a list of > items back into the pool for recovery. > > these are used by sysctl for a new view which ive called pcaches, > short for pool caches. >
I think this is a nice addition. It would be nice to have some (at least terse) description of fields in the man page itself. In any case, OK mikeb
