Michael Kelly, le dim. 15 mars 2026 20:31:55 +0000, a ecrit:
> On 14/03/2026 22:13, Samuel Thibault wrote:
> > Michael Kelly, le lun. 09 mars 2026 20:11:45 +0000, a ecrit:
> > > Might it be that boralus is also behaving this way without it being
> > > noticed?
> > That's possible. For some memory-hungry packages I see several GB of
> > swap getting consumed, and little useful CPU time is spent, until the
> > build manages to finish, or times out.
>
> I was referring to the behaviour when there is no mach-defpager running. I'd
> like to examine the scenarios that you are describing though to see if it
> reveals anything interesting. Which package build is a good example of what
> you are describing?
Right now r-bioc-cner_1.42.0+dfsg-4 is doing this. The odd thing is that
in top, we don't really see a process taking a lot of memory, but it's
really full:
MiB Mem : 2817.3 total, 313.0 free, 2504.2 used, 1359.1 buff/cache
MiB Swap: 4096.0 total, 2730.4 free, 1365.6 used. 313.0 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
7 root 15 -5 857604 209252 0 S 4.8 7.3 16,02 rumpdisk
382 root 8 -12 1144792 95588 0 R 2.9 3.3 351:09.92 ext2fs
3 root -2 -22 1686580 89136 0 D 0.0 3.1 20:00.40 gnumach
184 root 20 0 389988 77232 0 S 0.3 2.7 17:39.82 mach-defp+
5306 buildd 20 0 5536516 55736 0 S 1.0 1.9 0:47.14 R
[...]
Probably there is some type of memory that we miss counting in the /proc
counters.
Samuel
