Re: CURRENT slow and shaky network stability

On 29 Mar, To: ohartman_at_zedat.fu-berlin.de wrote:
> On 28 Mar, Don Lewis wrote:
>> On 28 Mar, O. Hartmann wrote:
>  
>> If I get a chance, I try booting my FreeBSD 11 machine with less RAM to
>> see if that is a trigger.
> 
> I just tried cranking hw.physmen down to 8 GB on 11.0-CURRENT r297204,
> GENERIC kernel.  /boot/loader.conf contains:
>   geom_mirror_load="YES"
>   kern.geom.label.disk_ident.enable="0"
>   kern.geom.label.gptid.enable="0"
>   zfs_load="YES"
>   vboxdrv_load="YES"
>   hw.physmem="8G"
> 
> /etc/sysctl.conf contains:
>   kern.ipc.shm_allow_removed=1
> 
> No /etc/src.conf and nothing of that should matter in /etc/make.conf.
> 
> 
> This is what I see after running
> 	poudriere ports -p whatever -u
> 
> last pid:  2102;  load averages:  0.24,  0.52,  0.36    up 0+00:06:54  14:13:51
> 52 processes:  1 running, 51 sleeping
> CPU:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  100% idle
> Mem: 95M Active, 20M Inact, 1145M Wired, 39K Buf, 5580M Free
> ARC: 595M Total, 256M MFU, 248M MRU, 16K Anon, 14M Header, 78M Other
> Swap: 40G Total, 40G Free
> 
> No swap used, inactive memory low, no interactivity problems.  Next I'll
> try r297267, which is what I believe you are running.  I scanned the
> commit logs between r297204 and r297267 and didn't see anything terribly
> suspicious looking.

No problems here with r297267 either.  I did a bunch of small poudriere
runs since the system was first booted.  Usable RAM is still dialed back
to 8 GB.  A bit of swap is in use, mostly because nginx, which has been
unused since the system was booted, got swapped out.  Inactive memory is
low now that poudriere is done.

last pid: 75471;  load averages:  0.21,  0.15,  0.19    up 0+07:36:07  00:24:00
50 processes:  1 running, 49 sleeping
CPU:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  100% idle
Mem: 5988K Active, 14M Inact, 2641M Wired, 41K Buf, 4179M Free
ARC: 790M Total, 575M MFU, 169M MRU, 16K Anon, 9618K Header, 36M Other
Swap: 40G Total, 50M Used, 40G Free

Do you use tmpfs?  Anything stored in there will get stashed in inactive
memory and/or swap.