11.2-STABLE kernel wired memory leak

[Eugene Grosbein]

13.02.2019 1:50, Lev Serebryakov wrote:

>  I'm have same problem.
> 
>  According to top(1) I have 29G Wired, but only 17G Total ARC (12G
> difference! System has 32G of RAM), and this statistic shows:
> 
>     5487.5 zio_data_buf_524288
>    920.125 zio_data_buf_131072
>        626 zio_buf_131072
>        468 zio_data_buf_1048576
>    398.391 zio_buf_16384
>    305.464 dnode_t
>    227.989 zio_buf_512
>      171.5 zio_data_buf_458752
>     141.75 zio_data_buf_393216
>    116.456 dmu_buf_impl_t
> 
>  So, more than 6G (!) is not used in ARC, but hold by ZFS anyway.

dnode_t and dmu_buf_impl_t are parts of ZFS too,
so these numbers represent about 9G, not 6G.

Do you have/had some memory pressure here? Growth of swap usage?