Re: SLUB

[Mark Seger <Mark.Seger@hp.com>]

Christoph Lameter wrote:
> On Thu, 27 Dec 2007, Mark Seger wrote:
>
>   
>>> The right hand side is okay. Could you list all the slab names that are
>>> covered by :00008 on the left side (maybe separated by commas?) Having the
>>> :00008 there is ugly. slabinfo can show you a way how to get the names.
>>>   
>>>       
>> here's the challenge - I only want to use a single line per entry AND I want
>> all the columns to line up for easy reading (I don't want much do I?).  I'll
>> have to do some experiments to see what might look better.  One thought is to
>> list a 'primary' name (whatever that might mean) in the left-hand column and
>> perhaps line up the rest of the other names to the right of the total.
>>     
>
> slabinfo has the concept of the "first" name of a slab. See the -f option.
>   
slick!
>> Another option could be to just repeat the line with each slab entry but that
>> also generates a lot of output and one of the other notions behind collectl is
>> to make it real easy to see what's going on and repeating information can be
>> confusing.
>>     
>
> I'd say just pack as much as fit into the space and then create a new line 
> if there are too many aliases of the slab.
>   
lemme play with it some
>> I'm assuming the way slabinfo gets the names (or at least the way I can think
>> of doing it) it so just look for entries in /sys/slab that are links.
>>     
>
> It scans for symlinks pointing to that strange name. Source code for 
> slabinfo is in Documentation/vm/slabinfo.c.
>   
gottcha...
-mark


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