#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.
#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 BlockedOnMsgThrowTo 12
+
+/* The thread is not on any run queues, but can be woken up
+ by tryWakeupThread() */
+#define ThreadMigrating 13
+
/*
* These constants are returned to the scheduler by a thread that has
* stopped for one reason or another. See typedef StgThreadReturnCode
#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 */