diff --git a/README b/README
index 916ae2e..8231ee2 100644
--- a/README
+++ b/README
@@ -8,3 +8,4 @@
 Static Single Assignment form (SSA) representation for Go programs.
 
 To submit changes to this repository, see http://golang.org/doc/contribute.html.
+
diff --git a/dashboard/app/cache/cache.go b/dashboard/app/cache/cache.go
index 4b57614..27b14ce 100644
--- a/dashboard/app/cache/cache.go
+++ b/dashboard/app/cache/cache.go
@@ -40,7 +40,7 @@
 func Tick(c appengine.Context) uint64 {
 	t, err := memcache.Increment(c, TimeKey, 1, newTime())
 	if err != nil {
-		c.Errorf("cache.Tick: %v", err)
+		c.Errorf("cache: tick: %v", err)
 		return 0
 	}
 	return t
@@ -50,19 +50,21 @@
 // value. It reports whether it found the cache record and logs any errors to
 // the admin console.
 func Get(r *http.Request, now uint64, name string, value interface{}) bool {
+	c := appengine.NewContext(r)
 	if now == 0 || r.FormValue(nocache) != "" {
+		c.Debugf("cache: skipping get: now=%v, nocache=%q", now, nocache)
 		return false
 	}
-	c := appengine.NewContext(r)
 	key := fmt.Sprintf("%s.%d", name, now)
 	_, err := memcache.JSON.Get(c, key, value)
-	if err == nil {
-		c.Debugf("cache hit %q", key)
+	switch err {
+	case nil:
+		c.Debugf("cache: get %q: hit", key)
 		return true
-	}
-	c.Debugf("cache miss %q", key)
-	if err != memcache.ErrCacheMiss {
-		c.Errorf("get cache %q: %v", key, err)
+	case memcache.ErrCacheMiss:
+		c.Debugf("cache: get %q: cache miss", key)
+	default:
+		c.Errorf("cache: get %q: %v", key, err)
 	}
 	return false
 }
@@ -70,10 +72,11 @@
 // Set puts value into memcache under name at time now.
 // It logs any errors to the admin console.
 func Set(r *http.Request, now uint64, name string, value interface{}) {
+	c := appengine.NewContext(r)
 	if now == 0 || r.FormValue(nocache) != "" {
+		c.Debugf("cache: skipping set: now=%v, nocache=%q", now, nocache)
 		return
 	}
-	c := appengine.NewContext(r)
 	key := fmt.Sprintf("%s.%d", name, now)
 	err := memcache.JSON.Set(c, &memcache.Item{
 		Key:        key,
@@ -81,6 +84,8 @@
 		Expiration: expiry,
 	})
 	if err != nil {
-		c.Errorf("set cache %q: %v", key, err)
+		c.Errorf("cache: set %q: %v", key, err)
+		return
 	}
+	c.Debugf("cache: set %q: ok", key)
 }