Re: [Patch] mt_allocator: spare mem & fix alignment problems

[Paolo Carlini <pcarlini at suse dot de>]

Hi,

[snip]

Thanks for your interesting observations: in my opinion first we must figure
out *exactly* where that 10x comes from...

> Another couple of issues that are pending would be:
>
> 1. The use of the div instruction on every call of deallocate to
> calculate the nodes to be removed. This is quite a high latency
> instruction, but I don't know how much the performance is affected.
>  
Probably not much, but I agree that we had better avoiding it, if 
possible. I'll
give it a try in a forthcoming batch of minor cleanups.

> 2. The algorithm for giving back nodes to the global pool. Instead of
> clipping out one node at a time, why not splice out a whole bunch of
> nodes, and put them all in at one shot? Just a thought. I can prepare a
> patch for this one if needed.
>  
Looks like a nice idea. Please put together a patch for public scrutiny.

Paolo.