zfs meta data slowness

[Eugene Grosbein]

22.07.2020 2:37, mike tancsa wrote:

>> Something else special about the setup.
>> output of "top -b"
>>
> 
> ports are right now being built in a VM, but the problem (zrepl hanging)
> and zfs list -t snapshots taking forever happens regardless
> 
>   PID USERNAME    THR PRI NICE   SIZE    RES STATE    C   TIME    WCPU
> COMMAND
>  4439 root         12  40   20  6167M  5762M kqread   3 535:13 200.00% bhyve
> 98783 root          2  21    0    16M  5136K hdr->b   4   0:01   1.95% zfs
> 76489 root         21  23    0   738M    54M uwait    1   2:18   0.88% zrepl
> 98784 root          1  21    0    13M  3832K piperd   3   0:01   0.59% zfs
> 99563 root          1  20    0    13M  4136K zio->i   4   0:00   0.39% zfs

You need top -SHPI