11.2-STABLE kernel wired memory leak

[Mike Tancsa]

On 2/12/2019 2:38 PM, Eugene Grosbein wrote:
>
> mbuf* numbers represent memory being wasted IMHO.
>
> In contrast to ZFS memory that can contain useful cached data,
> contents of freed mbufs cannot be re-used, right?
>
> Some amount of "free" mbufs in the zone's just fine to serve bursts of traffic
> without need to grow the zone but your numbers are way too big IMHO.
>
> Do you have memory pressure here? Growth of swap usage?
>
I had to radically cut ARC down, otherwise the box would start swapping
all sorts of processes out


% sysctl -a vfs.zfs.arc_max
vfs.zfs.arc_max: 12307744768


    ---Mike



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Mike Tancsa, tel +1 519 651 3400 x203
Sentex Communications, mike at sentex.net
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