Re: CURRENT: why is CURRENT swapping so fast?

----- Original Message ----- 
From: "Matthias Andree" <[e-mail]>


> Am 12.06.2014 00:36, schrieb O. Hartmann:
>> 
>> I use my boxes for daily work and in most cases, the usage of applications is the same.
>> Compiling the OS and updating ports while having claws-mail and firefox opened is some
>> usual scenario.
>> 
>> I realise since a couple of weeks, if not months now, but always sticky to 11.0-CURRENT,
>> that the system is even with 8 GB RAM very quickly out of memory and swapping. As of
>> today - updating CURRENT (buildword) and also updating ports. Nothing else except
>> firefox. And the box is using 1% swapspace.
> 
> Are you using ZFS, and more to the point, did you recently start using it?
> 
> Do you mean "start swapping out sooner than it used to do"?
> 
> Do you expect that swap remains at 0 unless there is serious memory
> pressure?
> 
> One point: Linux rolls dice when it needs memory, with a tunable that
> states the chance that either a cached page gets evicted, or an in-use
> page gets swapped out.
> 
> Has FreeBSD similar mechanisms these days?

Also how recent a current there where some vm changes which apparently helped with this
specifically r260567 and r265944.

    Regards
    Steve
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