On 26 Mar, Poul-Henning Kamp wrote:
> In message
> , Ultima writes:
>> A large zfs send [...]
> I am not running zfs.
I am. I'm not seeing any unexpected problems. I haven't really loaded
this system up with a big poudriere run since it's been booted. It's
mostly just been singled-threaded compiles since then. A bit of swap is
used and free memory is kind of low. In my case the culprit seems to be
last pid: 28589; load averages: 1.06, 1.09, 1.08 up 3+15:55:10 16:12:51
71 processes: 2 running, 63 sleeping, 6 stopped
CPU: 7.0% user, 0.0% nice, 0.9% system, 0.0% interrupt, 92.1% idle
Mem: 564M Active, 6787M Inact, 23G Wired, 277M Buf, 656M Free
ARC: 16G Total, 5494M MFU, 2062M MRU, 499K Anon, 573M Header, 8434M Other
Swap: 40G Total, 4108K Used, 40G Free
When I'm making heavy use of poudriere, swap usage goes up a lot and the
pressure on free memory decreases the ARC size significantly.
It's a headless machine accessed via ssh, so I won't see any issues with
Xorgs and its clients getting paged out. Remote shell access seems to
perform ok for me.
Before r297203 I was running r296416 and really pushed it hard. I
didn't observe any unexpected interactivity issues even with more than
10G of swap used and a load average over 50. I'd love to add more RAM,
but the motherboard is at max capacity.
The problems that some are describing sound a lot like lost interrupts
or lost wakeups. The former could easily be hardware dependant.
My FreeBSD 10.3-PRERELEASE desktop is worse under load. It also uses
zfs, but only has 8 GB of RAM. The main culprit is firefox, which gets
very bloated after a while. I've got some other hoggish processes on
it, which doesn't help.
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