1.0.25.38: fix maybe_gc

[sbcl.git] / tests / timer.impure.lisp

diff --git a/tests/timer.impure.lisp b/tests/timer.impure.lisp
index 8531430..3cea11c 100644 (file)
--- a/tests/timer.impure.lisp
+++ b/tests/timer.impure.lisp
@@ -17,7 +17,8 @@
   `(handler-case (progn (progn ,@body) nil)
     (sb-ext:timeout () t)))
 
-(with-test (:name (:timer :relative))
+(with-test (:name (:timer :relative)
+            :fails-on '(and :sparc :linux))
   (let* ((has-run-p nil)
          (timer (make-timer (lambda () (setq has-run-p t))
                             :name "simple timer")))
@@ -28,7 +29,8 @@
     (assert has-run-p)
     (assert (zerop (length (sb-impl::%pqueue-contents sb-impl::*schedule*))))))
 
-(with-test (:name (:timer :absolute))
+(with-test (:name (:timer :absolute)
+            :fails-on '(and :sparc :linux))
   (let* ((has-run-p nil)
          (timer (make-timer (lambda () (setq has-run-p t))
                             :name "simple timer")))
@@ -57,7 +59,8 @@
                  :thread t)))
     (schedule-timer timer 0.1)))
 
-(with-test (:name (:timer :repeat-and-unschedule))
+(with-test (:name (:timer :repeat-and-unschedule)
+            :fails-on '(and :sparc :linux))
   (let* ((run-count 0)
          timer)
     (setq timer
@@ -145,7 +148,10 @@
 (defun random-type (n)
   `(integer ,(random n) ,(+ n (random n))))
 
-(with-test (:name '(:hash-cache :interrupt))
+;;; FIXME: Since timeouts do not work on Windows this would loop
+;;; forever.
+#-win32
+(with-test (:name (:hash-cache :interrupt))
   (let* ((type1 (random-type 500))
          (type2 (random-type 500))
          (wanted (subtypep type1 type2)))
@@ -158,3 +164,81 @@
                                0.05)
         (loop
            (assert (eq wanted (subtypep type1 type2))))))))
+
+;;; Disabled. Hangs occasionally at least on x86. See comment before
+;;; the next test case.
+#+(and nil sb-thread)
+(with-test (:name (:timer :parallel-unschedule))
+  (let ((timer (sb-ext:make-timer (lambda () 42) :name "parallel schedulers"))
+        (other nil))
+    (flet ((flop ()
+             (sleep (random 0.01))
+             (loop repeat 10000
+                   do (sb-ext:unschedule-timer timer))))
+      (loop repeat 5
+            do (mapcar #'sb-thread:join-thread
+                       (loop for i from 1 upto 10
+                             collect (let* ((thread (sb-thread:make-thread #'flop
+                                                                           :name (format nil "scheduler ~A" i)))
+                                            (ticker (sb-ext:make-timer (lambda () 13) :thread (or other thread)
+                                                                       :name (format nil "ticker ~A" i))))
+                                       (setf other thread)
+                                       (sb-ext:schedule-timer ticker 0 :repeat-interval 0.00001)
+                                       thread)))))))
+
+;;;; FIXME: OS X 10.4 doesn't like these being at all, and gives us a SIGSEGV
+;;;; instead of using the Mach expection system! 10.5 on the other tends to
+;;;; lose() where with interrupt already pending. :/
+;;;;
+;;;; FIXME: This test also occasionally hangs on Linux/x86-64 at least. The
+;;;; common feature is one thread in gc_stop_the_world, and another trying to
+;;;; signal_interrupt_thread, but both (apparently) getting EAGAIN repeatedly.
+;;;; Exactly how or why this is happening remains under investigation -- but
+;;;; it seems plausible that the fast timers simply fill up the interrupt
+;;;; queue completely. (On some occasions the process unwedges itself after
+;;;; a few minutes, but not always.)
+;;;;
+;;;; FIXME: Another failure mode on Linux: recursive entries to
+;;;; RUN-EXPIRED-TIMERS blowing the stack.
+#+nil
+(with-test (:name (:timer :schedule-stress))
+  (flet ((test ()
+           (let* ((slow-timers (loop for i from 1 upto 100
+                                     collect (sb-ext:make-timer (lambda () 13) :name (format nil "slow ~A" i))))
+                  (fast-timer (sb-ext:make-timer (lambda () 42) :name "fast")))
+             (sb-ext:schedule-timer fast-timer 0.0001 :repeat-interval 0.0001)
+             (dolist (timer slow-timers)
+               (sb-ext:schedule-timer timer (random 0.1) :repeat-interval (random 0.1)))
+             (dolist (timer slow-timers)
+               (sb-ext:unschedule-timer timer))
+             (sb-ext:unschedule-timer fast-timer))))
+    #+sb-thread
+    (mapcar #'sb-thread:join-thread (loop repeat 10 collect (sb-thread:make-thread #'test)))
+    #-sb-thread
+    (loop repeat 10 do (test))))
+
+#+sb-thread
+(with-test (:name (:timer :threaded-stress))
+  (let ((barrier (sb-thread:make-semaphore))
+        (goal 100))
+    (flet ((wait-for-goal ()
+             (let ((*n* 0))
+               (declare (special *n*))
+               (sb-thread:signal-semaphore barrier)
+               (loop until (eql *n* goal))))
+           (one ()
+             (declare (special *n*))
+             (incf *n*)))
+      (let ((threads (list (sb-thread:make-thread #'wait-for-goal)
+                           (sb-thread:make-thread #'wait-for-goal)
+                           (sb-thread:make-thread #'wait-for-goal))))
+        (sb-thread:wait-on-semaphore barrier)
+        (sb-thread:wait-on-semaphore barrier)
+        (sb-thread:wait-on-semaphore barrier)
+        (flet ((sched (thread)
+                 (sb-thread:make-thread (lambda ()
+                                          (loop repeat goal
+                                                do (sb-ext:schedule-timer (make-timer #'one :thread thread) 0.001))))))
+          (dolist (thread threads)
+            (sched thread)))
+        (mapcar #'sb-thread:join-thread threads)))))