Date: Sun, 31 Aug 2025 12:35:35 -0700 From: Mark Millard <marklmi@yahoo.com> To: Graham Perrin <grahamperrin@gmail.com> Cc: freebsd-pkg@freebsd.org, freebsd-pkgbase@freebsd.org Subject: Re: pkg upgrade, vfs.zfs.arc.free_target, vfs.zfs.arc.sys_free, vm.pageout_oom_seq Message-ID: <ECF9B89D-8044-40C3-BC03-3B7F76180C91@yahoo.com> In-Reply-To: <d9e94d27-3c66-4709-8067-966e92d23646@gmail.com> References: <D2C64F39-B6EA-47BD-B88E-B4D729BE0150@yahoo.com> <0dbf8c95-7697-4887-a890-335c3ccd80f1@gmail.com> <29ff7f7e-12ef-4d10-8ca4-15ae35ce6bae@gmail.com> <19251E67-BC92-4D71-9E71-6C7546A46D8C@yahoo.com> <ef9ca09f-72e0-4489-a779-2debc161d770@gmail.com> <9300201D-9D53-449B-9F0A-DFF6194B2830@yahoo.com> <d9e94d27-3c66-4709-8067-966e92d23646@gmail.com>
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On Aug 31, 2025, at 11:42, Graham Perrin <grahamperrin@gmail.com> wrote: > On 31/08/2025 09:38, Mark Millard wrote: > >> … >> >> It would appear that RAM==4GiBytes without SWAP would not be >> generally supported by pkg as stands. Testing hw.physmem="4G" >> without SWAP . . . >> >> OOM KILLS result: >> >> # pkg upgrade -rFreeBSD-ports -fUy >> Checking for upgrades (1485 candidates): 100% >> Processing candidates (1485 candidates): 100% >> Checking integrity...Child process pid=2219 terminated abnormally: Killed >> >> … > > > Retry three or more times. The integrity check might succeed. > > (I ran tests, albeit not the same set of FreeBSD-ports packages, with 1 GB memory given to a VirtualBox guest on fast physical storage. Booted from FreeBSD-14.3-RELEASE-amd64-dvd1.iso, installed all components then converted to pkgbase before first boot of the installed system. No swap in that environment.) > Turns out I do not seen to involve adding any packages from your example to my context: So far, my original set of packages lead to -fUy failing every time it is tried for 4 GiByte of RAM (no SWAP). What top shows is Laundry (so: known dirty pages that are not active) growing until there can not be enough Free RAM to meet FreeBSD's threshold requirements. Re-enabling the SWAP and trying without your package examples being added (so: fewer packages overall), leads to the Maximum Swap Used being 799716Ki, with the peak being during later Installing/Extracting activity, not during the integrity check. So: (RAM+SWAP) approx.= 4.8 GiBytes (so a fraction under 5 GiBYtes) --instead of a fraction under 6 GiBytes with the extra packages. The evidence that I see suggests to me that the required RAM+SWAP strongly depends on what set of packages there are to upgrade. === Mark Millard marklmi at yahoo.comhome | help
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