Re: more xcalloc() -> mempool conversions!

Adrian Chadd wrote:

> FreeBSD's malloc does page-align requests over a certain size. Feel free to
> try optimising the memPool stuff. :-)

Are you sure?

Well, Linux and dlmalloc doesn't anyway. It aligns larger allocations to
"page boundary + a fixed offset". This is because larger allocations is
done using mmap(). mmap() both reduces the fragmentation and allows the
library to return the memory to the OS when freed.

> Remember that the MemPool code is very basic and there's a lot
> of room for improvement.

Yes, there indeed is room for improvement.

One quite obvious one is to do batch allocations. This will save quite a
bit of memory on most malloc implementations. Problem is that it does
not go well together with idle limits.

/Henrik
Received on Mon Sep 25 2000 - 14:06:46 MDT