[openbeos] Re: Performance question - BList vs STL list
- From: Graham Gilmore <grahamg@xxxxxxxxxxxx>
- To: openbeos@xxxxxxxxxxxxx
- Date: Sun, 23 Oct 2005 01:18:33 -0400
Zenja Solaja wrote:
Hi. Just a quick question about possible performance issues for a
project I'm working on. Given a choice between the SupportKits BList
and the STL list (or vector), are there any reasons why I would want to
select one over the other? The application is only intended for BeOS
family.
I'm only interested in hearing performance related feedback (memory and
speed).
Thanks.
It partly depends on your use case, although in general I would lean
towards the STL containers as more performant. If you're simply looking
for a container to hold things that you will later iterate through from
first to last, a vector is your best choice as there is considerably
less overhead (both speed and memory wise). If you plan to modify your
data set a lot with additions and deletions which are not the first or
last elements, you might consider using a list instead as it's a lot
faster to insert or remove elements from the middle of a list, although
it does use more memory.
Graham
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