Twice the size of physical memory is norm for swap partition
On November 5, 2021 3:15:13 AM MDT, u...@mailo.com wrote: >Also asked on: >https://unix.stackexchange.com/questions/676245/openbsd-core-dump-and-var-size > >I'm trying to figure out my partitioning which leads to >https://man.openbsd.org/disklabel#AUTOMATIC_DISK_ALLOCATION >which says: > >"/var 13% of disk. 80M – 2x size of crash dump" > >But how do I know the size of crash dump? >I can't find it neither in OpenBSD's installation guide, nor in >https://man.openbsd.org/savecore.8 >nor in the internet at large. > >The only clue I've found is in >http://man.openbsd.org/man8/crash.8 >"the system dumps the contents of physical memory >onto a mass storage peripheral device" > >"physical memory". >So do rules of estimating swap partition size apply here as well? > >May I ask for some actual numbers/functions/tables? >Perhaps similar to the table in >https://askubuntu.com/a/49138 >answer on swap size: > >Amount of RAM Swap space Swap space >in the system if allowing for hibernation >-------------- ---------- --------------------------- >≤ 2 GB 2x RAM 3x RAM >> 2 GB – 8 GB = RAM 2x RAM >> 8 GB – 64 GB ≥ 4 GB 1.5x RAM >> 64 GB ≥ 4 GB Hibernation not recommended > >I am an ordinary user who is not going to test OpenBSD for crashiness >but to just run it the more stable the better >but for the possibility of a crash be able to report it. > >
