Added a logger to drdr for tracking drracket's memory use on startup

collects/meta/props

@@ -1370,6 +1370,7 @@ path/s is either such a string or a list of them.
 "collects/tests/drracket/drracket-test-util.rkt" drdr:command-line (gracket "-t" *)
 "collects/tests/drracket/io.rkt" drdr:command-line (gracket *)
 "collects/tests/drracket/language-test.rkt" drdr:command-line (gracket *) drdr:timeout 600
+"collects/tests/drracket/memory-log.rkt" drdr:command-line (gracket *)
 "collects/tests/drracket/module-lang-test-utils.rkt" drdr:command-line (gracket-text "-t" *)
 "collects/tests/drracket/module-lang-test.rkt" drdr:command-line (gracket *) drdr:timeout 120
 "collects/tests/drracket/randomly-click-language-dialog.rkt" drdr:command-line (mzc *)

collects/tests/drracket/memory-log.rkt

@@ -0,0 +1,28 @@
+#lang racket/base
+(require "drracket-test-util.rkt"
+         racket/gui/base)
+
+;; mem-cnt returns the amount of memory used, iterating (collect-garbage)
+;; until the delta is less than 10k or we've done it 20 times.
+(define (mem-cnt)
+  (let loop ([cmu (current-memory-use)]
+             [n 20])
+    (collect-garbage)
+    (let ([new-cmu (current-memory-use)])
+      (cond
+        [(or (< n 0)
+             (< (abs (- cmu new-cmu)) 
+                (* 10 1024)))
+         new-cmu]
+        [else
+         (loop new-cmu (- n 1))]))))
+    
+(fire-up-drscheme-and-run-tests 
+ (λ ()
+   (let ([drscheme-frame (wait-for-drscheme-frame)]
+         [s (make-semaphore 0)])
+     (queue-callback (λ () (queue-callback  (λ () (semaphore-post s)) #f)) #f)
+     (yield s) ;; let two rounds of pending events be handled. 
+     (let ([n (mem-cnt)])
+       (printf "cpu time: ~a real time: ~a gc time: ~a\n"
+               n n n)))))