"John M. Harris Jr" <johnmh@xxxxxxxxxxxxx> writes: > On Friday, January 3, 2020 1:51:00 PM MST Robbie Harwood wrote: >> Robbie Harwood <rharwood@xxxxxxxxxx> writes: >>> Ben Cotton <bcotton@xxxxxxxxxx> writes: >>> >>>> https://fedoraproject.org/wiki/Changes/EnableEarlyoom >>>> >>>> == Summary == >>>> Install earlyoom package, and enable it by default. This will cause >>>> the kernel oomkiller to trigger sooner, but will not affect which >>>> process it chooses to kill off. The idea is to recover from out of >>>> memory situations sooner, rather than the typical complete system hang >>>> in which the user has no other choice but to force power off. >>>> >>>> # enable earlyoom by default on workstation >>>> enable earlyoom.service >>>> </pre> >>> >>> The OOM killer is a kernel function. I have no opinion on this proposal >>> as it stands, but I would like it to include an explanation of why this >>> requires a service in userspace to fix. >> >> Another thought. Wouldn't some of the pain here be alleviated by >> setting vm.swappiness=0? Currently it seems to be 60, which results >> in somewhat aggressive swap use; 1 seems better (minimal swapping >> without disabling), while 0 will disable it for general use (while >> preserving it for hibernation). This would at least improve the disk >> thrashing during OOM situations. > > To clarify, according to the Workstation group, hibernation isn't even > supported. If that's true - and I don't know how I'd check it, so I didn't - we should revisit enabling swap in the default install, and *definitely* should remove the warning for not having it from anaconda. Thanks, --Robbie
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