trying to figure out why the runtime behavior of compilation is so variable; I sometimes get 13.23 seconds, and sometimes 5.73 seconds, and I have no control over why. Really strange.

js-assembler/db-cache.rkt

@@ -96,7 +96,7 @@
                         (call-with-input-file* path md5)))
      (cond
        [maybe-row
-        (gunzip-content (vector-ref maybe-row 2))]
+        (vector-ref maybe-row 2) #;(gunzip-content (vector-ref maybe-row 2))]
        [else
         #f])]
     [else
@@ -116,7 +116,7 @@
      (query-exec conn insert-cache-stmt
                  (path->string path)
                  signature
-                 (gzip-content data))]
+                 data #;(gzip-content data))]
     [else
      (error 'save-in-cache! "File ~e does not exist" path)]))
 

js-assembler/package.rkt

@@ -369,22 +369,23 @@ M.modules[~s] =
 ;; Optimization: if we've seen this source before, we may be able to pull
 ;; it from the cache.
 (define (on-source src stmts op)
-
   (define (on-path path)
     (cond
-     [(cached? path)
-      =>
-      (lambda (bytes)
-	(display bytes op))]
-     [(cacheable? path)
-      (define string-op (open-output-bytes))
-      (assemble/write-invoke (my-force stmts) string-op)
-      (save-in-cache! path (open-output-bytes))
-      (display (get-output-string string-op) op)]
-
-     [else
-      (assemble/write-invoke (my-force stmts) op)]))
-
+      [(current-with-cache?)
+       (cond
+         [(cached? path)
+          =>
+          (lambda (bytes)
+            (display bytes op))]
+         [(cacheable? path)
+          (define string-op (open-output-bytes))
+          (assemble/write-invoke (my-force stmts) string-op)
+          (save-in-cache! path (get-output-bytes string-op))
+          (display (get-output-string string-op) op)]
+         [else
+          (assemble/write-invoke (my-force stmts) op)])]
+      [else
+       (assemble/write-invoke (my-force stmts) op)]))
   (cond
    [(ModuleSource? src)
     (on-path (ModuleSource-path src))]

parameters.rkt

@@ -20,6 +20,8 @@
          current-kernel-module-locator?
          current-compress-javascript?
          current-one-module-per-file?
+         current-with-cache?
+         
          
          current-report-port
          current-timing-port
@@ -82,6 +84,11 @@
 (define current-one-module-per-file? (make-parameter #f))
 
 
+;; Turns on caching of compiled programs, so that repeated compilations
+;; will reuse existing work.
+(: current-with-cache? (Parameterof Boolean))
+(define current-with-cache? (make-parameter #t))
+
 
 
 (: current-report-port (Parameterof Output-Port))

version.rkt

@@ -6,4 +6,4 @@
 
 (provide version)
 (: version String)
-(define version "1.19")
+(define version "1.27")

whalesong-helpers.rkt

@@ -77,7 +77,8 @@
         (call-with-output-file* (build-path (current-output-dir) output-filename)
                                 (lambda (op)
                                   (package-standalone-xhtml
-                                   (make-MainModuleSource (build-path f))
+                                   (make-MainModuleSource 
+                                    (normalize-path (build-path f)))
                                    op))
                                 #:exists 'replace)))))
 
@@ -140,7 +141,8 @@
         (call-with-output-file* (make-output-js-filename)
                                 (lambda (op)
                                   (display (get-runtime) op)
-                                  (display (get-inert-code (make-MainModuleSource (build-path f))
+                                  (display (get-inert-code (make-MainModuleSource 
+                                                            (normalize-path (build-path f)))
                                                            make-output-js-filename)
                                            op))
                                 #:exists 'replace)
@@ -170,5 +172,6 @@
 (define (get-javascript-code filename)
   (turn-on-logger!)
   (display (get-standalone-code
-            (make-MainModuleSource (build-path filename)))
+            (make-MainModuleSource 
+             (normalize-path (build-path filename))))
            (current-output-port)))

whalesong.rkt

@@ -66,6 +66,9 @@
             [("--enable-profiling")
              ("Enable profiling to standard output")
              (with-profiling? #t)]
+            [("--without-cache")
+             ("Turn off the internal compilation cache")
+             (current-with-cache? #f)]
             [("--compress-javascript")
              ("Compress JavaScript with Google Closure (requires Java)")
              (current-compress-javascript? #t)]
@@ -98,6 +101,9 @@
                   [("--enable-profiling")
                    ("Enable profiling to standard output")
                    (with-profiling? #t)]
+                  [("--without-cache")
+                   ("Turn off the internal compilation cache")
+                   (current-with-cache? #f)]
                   [("--compress-javascript")
                    ("Compress JavaScript with Google Closure (requires Java)")
                    (current-compress-javascript? #t)]
@@ -117,6 +123,9 @@
                      [("--enable-profiling")
                       ("Enable profiling to standard output")
                       (with-profiling? #t)]
+                     [("--without-cache")
+                      ("Turn off the internal compilation cache")
+                      (current-with-cache? #f)]
                      [("--compress-javascript")
                       ("Compress JavaScript with Google Closure (requires Java)")
                       (current-compress-javascript? #t)]