You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Re improvement: perhaps an rbtree ordered by an f() that provides the same ordering but price-independent (so no need to re-sort on each tick as probabilities shift), 1 for longs, 1 for shorts. There is always a "first to be liquidated" position per side independent of price.
Yup, we are using RBTrees internally. Both for our books and for liquidation priority.
there is also lock-free concurrent rbtree designed in publications but no production ready implementations so far :-/
True. Our design isolates pairs in separate threads, so you don't have to worry of cross-thread locking on RBTrees. You really want base data structures as fast as possible.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.
