From 378ba01ba8a4b67fb5d01dd5adc57fb72e3c86a5 Mon Sep 17 00:00:00 2001
From: Scott Ostler <scottbot9000@gmail.com>
Date: Fri, 11 Jun 2010 15:07:46 -0400
Subject: load testing code

---
 test/dumpfm/load_test.clj | 81 ++++++++++++++++++++++++++++++++++++++++
 test/dumpfm/millstone.clj | 95 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 176 insertions(+)
 create mode 100644 test/dumpfm/load_test.clj
 create mode 100644 test/dumpfm/millstone.clj

(limited to 'test/dumpfm')

diff --git a/test/dumpfm/load_test.clj b/test/dumpfm/load_test.clj
new file mode 100644
index 0000000..68eda68
--- /dev/null
+++ b/test/dumpfm/load_test.clj
@@ -0,0 +1,81 @@
+(ns dumpfm.load-test
+  (:import org.postgresql.ds.PGPoolingDataSource)
+  (:use clojure.contrib.json.read
+        clojure.contrib.json.write
+	clojure.contrib.seq-utils
+        clojure.contrib.sql
+        dumpfm.millstone))
+
+
+(let [db-host "localhost"
+      db-name "dumpfm"
+      db-user "postgres"
+      db-pass "root"]
+  (def *db* {:datasource (doto (new PGPoolingDataSource)
+                           (.setServerName   db-host)
+                           (.setDatabaseName db-name)
+                           (.setUser         db-user)
+                           (.setPassword     db-pass)
+                           (.setMaxConnections 3))}))
+
+(def userlist-query "
+select u.nick, u.hash
+from users u, messages m where u.user_id = m.user_id
+group by u.nick, u.hash 
+having count(*) > 50
+order by count(*) desc
+")
+
+(print "Fetching userlist: ")
+(def userlist (time
+               (with-connection *db*
+                 (with-query-results rs [userlist-query]
+		   (doall rs)))))
+
+
+(def sample-messages-query "
+select content
+from messages
+order by random()
+limit 100
+")
+
+(print "Fetching messages: ")
+(def message-contents (time
+		       (with-connection *db*
+			 (with-query-results rs [sample-messages-query]
+			   (doall (map :content rs))))))
+
+(defn login-client []
+  (let [user-info (rand-elt userlist)
+	params    (select-keys user-info [:nick :hash])]
+    (do-setup-request! "/login"
+		       :params params
+		       :method "GET")))
+
+(defn refresh []
+  (let [params {:since (- (System/currentTimeMillis) 2000)
+		:room  "test"}]
+    (do-request! "/refresh"
+		 :params params
+		 :method "GET")
+    (Thread/sleep 1000)))
+
+(defn post-msg []
+  (let [params {:content (rand-elt message-contents)
+		:room  "test"}]
+    (do-request! "/msg"
+		 :params params
+		 :method "POST")))
+
+(def test-spec {:server        "http://localhost:8080"
+                :clients       100
+                :requests      10000
+                :setup-func    login-client
+                :funcs        [[55 refresh]
+			       [5  post-msg]]
+                :frequency 1
+                })
+
+(grind! test-spec)
+(System/exit 0)
\ No newline at end of file
diff --git a/test/dumpfm/millstone.clj b/test/dumpfm/millstone.clj
new file mode 100644
index 0000000..e59bb61
--- /dev/null
+++ b/test/dumpfm/millstone.clj
@@ -0,0 +1,95 @@
+(ns dumpfm.millstone
+  (:use clojure.contrib.def
+	clojure.contrib.seq-utils
+	clojure-http.client))
+
+(def *spec*)
+(def *cookies*)
+
+(def printer (agent nil))
+
+(defn log [& args]
+  (send printer (fn [_] (apply println args))))
+
+(defmacro with-timing [e]
+  `(let [s# (System/nanoTime)
+         r# ~e
+         f# (System/nanoTime)]
+     [(float (/ (- f# s#) 1e6)) r#]))
+
+(defn do-base-request [server path method cookies params]
+  (let [method (.toUpperCase method)
+	url    (str server path)]
+    (if (= method "GET")
+      (request (add-query-params url params) method nil cookies)
+      (request url method nil cookies params))))
+
+(defnk do-setup-request! [path
+			  :params nil
+			  :method "GET"]
+  (let [res (do-base-request (:server *spec*) path method *cookies* params)]
+    (if (:cookies res)
+      (set! *cookies* (merge *cookies* (:cookies res))))
+    res))
+
+(defnk do-request! [path
+		    :params nil
+		    :method :GET]
+  (let [[time res] (with-timing
+		     (do-base-request (:server *spec*)
+				      path
+				      method
+				      *cookies*
+				      params))]
+    (log (format "%s - %sms [%s %s]" path time (:code res) (:msg res)))
+    (if (:cookies res)
+      (log "should set cookies" (:cookies res)))
+    res))
+
+(defn build-client! [spec client-id]
+  (binding [*cookies*   {}]
+    (if (:setup-func spec)
+      ((:setup-func spec)))
+    {:client-id client-id
+     :cookies   *cookies*}))
+
+(defn print-run-results [spec elapsed]
+  (log (format "\nFinished\n--------\n%s runs in %s s (%s r/s)\n%s clients"
+	       (:requests spec)
+	       (/ elapsed 1000)
+	       (/ (:requests spec) elapsed 1000)
+	       (:clients spec))))
+
+(defn build-func-list [routes]
+  (flatten (for [[n f] routes]
+	     (repeat n f))))
+
+(defn grind! [spec]
+  (binding [*spec* spec]
+    (let [clients (doall
+		   (for [id (range (:clients spec))]
+		     (build-client! spec id)))
+	  funcs     (build-func-list (:funcs spec))
+	  results   (atom [])
+	  counter   (atom (:requests spec))
+	  threads (doall
+		   (for [c clients]
+		     (Thread.
+		      (fn []
+			(log "starting thread" (:client-id c))
+			(binding [*spec* spec
+				  *cookies* (:cookies c)]
+			  (loop []
+			    (if (> (swap! counter dec) 0)
+			      (let [f (rand-elt funcs)]
+				(f)
+				(recur))))
+			  (log "finishing thread" (:client-id c)))))))]
+      (println "Finished setup")
+      (let [[elapsed _] (with-timing
+			  (do
+			    (doseq [t threads]
+			      (.start t))
+			    (doseq [t threads]
+			      (.join t))))]
+	(print-run-results spec elapsed)))))
-- 
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