is TMPFS still highly experimental?

Attila Nagy bra at fsn.hu
Mon Oct 3 18:36:53 UTC 2011


  On 10/03/2011 07:14 PM, Xin LI wrote:
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> Hi, Attila,
>
> On 10/03/11 04:29, Attila Nagy wrote:
>> For me, the bug is still here: $ uname -a FreeBSD b 8.2-STABLE
>> FreeBSD 8.2-STABLE #5: Wed Sep 14 15:01:25 CEST 2011
>> root at buildervm:/data/usr/obj/data/usr/src/sys/BOOTCLNT  amd64 $ df
>> -h /tmp Filesystem    Size    Used   Avail Capacity  Mounted on
>> tmpfs           0B      0B      0B   100%    /tmp
>>
>> I have no swap configured. The machine has 64 GB RAM.
>> vm.kmem_size=60G; vfs.zfs.arc_max=55G; vfs.zfs.arc_min=20G
> This sounds like a configuration issue.  Running without swap is not
> recommended anyways.
I guess it depends on the workload. In general, you are possibly right, 
but if you need predictable response times and you can tolerate dying 
processes, swapping may not be the right thing to do.



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