Hello, On Tue, Jun 02, 2020 at 08:08:10AM +0800, Lai Jiangshan wrote: > It is not noticable from the "free" command. > By counting the number of allocated pwq (mainly percpu pwq), > it saves 20k in my simple kvm guest (4cpu). > I guess it highly various in different boxes with various > kernel modules loaded.
Hmm... I find it difficult to judge in any direction. 32 bit machines are smaller and have less of everything - including CPUs and workqueues themselves, so while changing configuration for 32bit systems would reduce memory usage the impact isn't gonna be that big either and I have no data supporting whether the reduction is gonna help or hurt. Thanks. -- tejun
