on 14/01/2014 07:27 Vladimir Sharun said the following:
> Dear Andriy and FreeBSD community,
>> I am not sure if the buffers are leaked somehow or if they are actually in
>> It's one of the very few places where data buffers are allocated without
>> charging ARC. In all other places it's quite easy to match allocations and
>> deallocations. But in L2ARC it is not obvious that all buffers get freed or
>> when that happens.
> After one week under load I think we figure out the cause: it's L2ARC.
> Here's the top's header for 7d17h of the runtime:
> last pid: 46409; load averages: 0.37, 0.62, 0.70 up 7+17:14:01 07:24:10
> 173 processes: 1 running, 171 sleeping, 1 zombie
> CPU: 2.0% user, 0.0% nice, 3.5% system, 0.4% interrupt, 94.2% idle
> Mem: 8714M Active, 14G Inact, 96G Wired, 1929M Cache, 3309M Buf, 3542M Free
> ARC: 85G Total, 2558M MFU, 77G MRU, 28M Anon, 1446M Header, 4802M Other
> ARC related tunables:
> For more than 7 days of hard runtime the picture clearly shows:
> Wired minus ARC = 11..12Gb, ARC grow and shrinks in 80-87Gb range and the
> system runs just fine.
> So what shall we do with L2ARC leakage ?
Could you please try this patch
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