X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=includes%2Frts%2FConstants.h;h=bfc77fa3616ba082b38e41a5b54a19b94e2ab1a5;hb=2726a2f10256710cc6ed80b1098cb32e121e1be7;hp=82f3bdd74d67b6bf59a2a87fcace53b3e479f986;hpb=69ba3e6bbae81ce02f6ea66d0686667b7dfb7e8f;p=ghc-hetmet.git

diff --git a/includes/rts/Constants.h b/includes/rts/Constants.h
index 82f3bdd..bfc77fa 100644
--- a/includes/rts/Constants.h
+++ b/includes/rts/Constants.h
@@ -66,6 +66,13 @@
 #define MAX_CHARLIKE		255
 #define MIN_CHARLIKE		0
 
+/* Each byte in the card table for an StgMutaArrPtrs covers
+ * (1<<MUT_ARR_PTRS_CARD_BITS) elements in the array.  To find a good
+ * value for this, I used the benchmarks nofib/gc/hash,
+ * nofib/gc/graph, and nofib/gc/gc_bench.
+ */
+#define MUT_ARR_PTRS_CARD_BITS 7
+
 /* -----------------------------------------------------------------------------
    STG Registers.
 
@@ -201,25 +208,27 @@
 #define NotBlocked          0
 #define BlockedOnMVar       1
 #define BlockedOnBlackHole  2
-#define BlockedOnException  3
-#define BlockedOnRead       4
-#define BlockedOnWrite      5
-#define BlockedOnDelay      6
-#define BlockedOnSTM        7
+#define BlockedOnRead       3
+#define BlockedOnWrite      4
+#define BlockedOnDelay      5
+#define BlockedOnSTM        6
 
 /* Win32 only: */
-#define BlockedOnDoProc     8
+#define BlockedOnDoProc     7
 
 /* Only relevant for PAR: */
   /* blocked on a remote closure represented by a Global Address: */
-#define BlockedOnGA         9
+#define BlockedOnGA         8
   /* same as above but without sending a Fetch message */
-#define BlockedOnGA_NoSend  10
+#define BlockedOnGA_NoSend  9
 /* Only relevant for THREADED_RTS: */
-#define BlockedOnCCall      11
-#define BlockedOnCCall_NoUnblockExc 12
+#define BlockedOnCCall      10
+#define BlockedOnCCall_NoUnblockExc 11
    /* same as above but don't unblock async exceptions in resumeThread() */
 
+/* Involved in a message sent to tso->msg_cap */
+#define BlockedOnMsgWakeup  12
+#define BlockedOnMsgThrowTo 13
 /*
  * These constants are returned to the scheduler by a thread that has
  * stopped for one reason or another.  See typedef StgThreadReturnCode
@@ -263,6 +272,13 @@
  */
 #define TSO_MARKED 64
 
+/*
+ * Used to communicate between stackSqueeze() and
+ * threadStackOverflow() that a thread's stack was squeezed and the
+ * stack may not need to be expanded.
+ */
+#define TSO_SQUEEZED 128
+
 /* -----------------------------------------------------------------------------
    RET_DYN stack frames
    -------------------------------------------------------------------------- */
@@ -282,4 +298,13 @@
 #error RESERVED_STACK_WORDS may be wrong!
 #endif
 
+/*
+ * The number of times we spin in a spin lock before yielding (see
+ * #3758).  To tune this value, use the benchmark in #3758: run the
+ * server with -N2 and the client both on a dual-core.  Also make sure
+ * that the chosen value doesn't slow down any of the parallel
+ * benchmarks in nofib/parallel.
+ */
+#define SPIN_COUNT 1000
+
 #endif /* RTS_CONSTANTS_H */