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From: Beman Dawes (bdawes_at_[hidden])
Date: 2001-11-06 07:19:46

At 06:13 AM 11/6/2001, Erdei Andras wrote:

>Michael wrote:
>> I'm sorry, I've never read this and can't find it on ACM or Yahoo.
>you can find the some articles at
>[the homepage of the original skip list author]
>and a lot more around
>Sofus Mortensen wrote:
>> I wonder what skip list's will bring us that we don't already
>> have with either set/multiset or map/multimap ?
>customizable memory complexity, additional functionality
>(like utilizing the locality of searches), and (at least in theory)
>greater speed -- i'm toying around with my own skip list
>implementation, but so far i'm stuck speed-wise. it is supposed
>to be faster than the red-black tree set in my STL, but right
>now the debug skip list is about 10 times faster than the
>debug red-black tree, while the release (optimized) version
>is slightly faster for insert and delete, but about 10% slower for
>search... most likely i'm not too good at writing fast code :O)

My first try at a skip list implementation also had unexpected performance
problems. Tracked it down to a poor implementation of rand(). You might
want to use the Boost random number library if you aren't doing so already.


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