freebsd stable - Feb 2019 - 11.2-STABLE kernel wired memory leak

Hi!
> > Use following command to see how much memory is wasted in your case:
> > 
> > vmstat -z | awk -F, '{printf "%10s %s\n",
$2*$5/1024/1024, $1}' | sort -k1,1 -rn | head
> 
> Oops, small correction:
> 
> vmstat -z | sed 's/:/,/' | awk -F, '{printf "%10s
%s\n", $2*$5/1024/1024, $1}' | sort -k1,1 -rn | head
On a 8 GB 11.2p8 box doing mostly routing:

  42.3047 abd_chunk
        40 zio_buf_131072
     31.75 zio_data_buf_131072
   19.8901 swblk
   12.9224 RADIX NODE
   11.7344 zio_buf_16384
   10.0664 zio_data_buf_12288
   9.84375 zio_data_buf_40960
     9.375 zio_data_buf_81920
   7.96875 zio_data_buf_98304

So, how do I understand this ? Please note that I use:

vfs.zfs.arc_max=1216348160

-- 
pi at opsec.eu            +49 171 3101372                    One year to go !

13.02.2019 1:29, Kurt Jaeger wrote:
> On a 8 GB 11.2p8 box doing mostly routing:
> 
>   42.3047 abd_chunk
>         40 zio_buf_131072
>      31.75 zio_data_buf_131072
>    19.8901 swblk
>    12.9224 RADIX NODE
>    11.7344 zio_buf_16384
>    10.0664 zio_data_buf_12288
>    9.84375 zio_data_buf_40960
>      9.375 zio_data_buf_81920
>    7.96875 zio_data_buf_98304
> 
> So, how do I understand this ? Please note that I use:
> 
> vfs.zfs.arc_max=1216348160
Each line shows how many megabytes is allocated but currently unused by
corresponding
UMA zone (and unavailable for other consumers). Your numbers are pretty low,
you have nothing to worry about IMHO. I have hundreds of megabytes and gigabytes
there.