whostolebenfrog

;; Clojure 1.5.1
=> 1
1
=> (require '[clojure.core.reducers :as r])
nil
=> (use 'clojure.repl)
nil
=> (doc r/fold)
-------------------------
clojure.core.reducers/fold

whostolebenfrog

;; the backup bot where my real one failed
;; function name is ben

(ns tron.bots
  (:require [tron.core :as tron]))

(defn up [[x y]]
  [x (dec y)])

(defn down [[x y]]

whostolebenfrog

(ns tron.bots
  (:require [tron.core :as tron]))

(defn up [[x y]]
  [x (dec y)])

(defn down [[x y]]
  [x (inc y)])

(defn left [[x y]]

whostolebenfrog

Instantly better presentations - Damian Conway

It probably just makes more sense to just view his version online at:

http://damian.conway.org/IBP.pdf

But making notes is useful anyway.

7 tips are

whostolebenfrog

Performance testing java applications - Martin Thompson

What is testing

Fast is generic, breaks down to: -- throughput -- bandwidth

-- latency -- response time

whostolebenfrog

Neo4j - Becoming polyglot, Putting neo4j into production and what happened next

Bite the bullet - try something novel, they found that getting the tech in allows you to find new usecases and understand what and where it can be used.

Neo technology were the big player, OrientDB and Dex are new players with seemingly successful use. Graph space is becoming bigger. www.orientdb.org sparsity-technologies.com/dex

tinkerpop, Blueprints -> like jdbc for graphs? You don't have to program to the vendors APIs. This means you can compare between the various vendors without having to reimplement for each one. www.tinkerpop.com

whostolebenfrog

Know more -  Gil Tene

GC is about tracking live objects, not dead objects.

Poor GC -> OOM, high pauses, long pause times

Hotspot -> C/C++/Assembly

Heap is broken into several generations pools. [all this is tuneable]
  -- Eden

whostolebenfrog

(defroutes clean-routes
  (GET "/1.x/status" [] (status-method-elsewhere))

  (GET "/1.x/users/:userid/foo" [] (no-foo-here))

  (GET "/1.x/users/:userid/bar" [] (keeps-routes-clean)))

whostolebenfrog

(defroutes context-routes
  (context "/1.x/users/:userid" req

           (GET "/info" {params :params} (get-user-info params))

           (POST "/info" [] (update-user-info! req))))

whostolebenfrog

(ns secret-santa.core
  (require [clojure.set :refer [difference]]))

;; note: only works if each person is in a single constraint

(def people #{:carole :ben :andrew :hillary :tom :dick :harry :barry})

(def constraints '([:carole :ben] [:andrew :hillary]))

(defn split