Re: btrfs filesystem keeps allocating new chunks for no apparent reason

[Hans van Kranenburg <hans.van.kranenburg@mendix.com>]

On 06/09/2016 10:52 AM, Marc Haber wrote:
> On Thu, Jun 09, 2016 at 01:10:46AM +0200, Hans van Kranenburg wrote:
>> So, instead of being the cause, apt-get update causing a new chunk to be
>> allocated might as well be the result of existing ones already filled up
>> with too many fragments.
>>
>> The next question is what files these extents belong to. To find out, I need
>> to open up the extent items I get back and follow a backreference to an
>> inode object. Might do that tomorrow, fun.
>
> Does your apt use pdiffs to update the packages lists? If yes, I'd try
> turning it off just for the fun of it and to see whether this changes
> btrfs' allocation behavior. I have never looked at apt's pdiff stuff
> in detail, but I guess that it creates many tiny temporary files.

No, it does not:

Acquire::Pdiffs "false";

-- 
Hans van Kranenburg - System / Network Engineer
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