#include "RtsUtils.h"
#include "ParTicky.h"
#include "Trace.h"
+#include "Prelude.h"
#include "SMP.h" // for cas
}
StgClosure *
-tryStealSpark (SparkPool *pool)
+tryStealSpark (Capability *cap)
{
+ SparkPool *pool = cap->sparks;
StgClosure *stolen;
do {
* -------------------------------------------------------------------------- */
void
-createSparkThread (Capability *cap, StgClosure *p)
+createSparkThread (Capability *cap)
{
StgTSO *tso;
- tso = createGenThread (cap, RtsFlags.GcFlags.initialStkSize, p);
+ tso = createIOThread (cap, RtsFlags.GcFlags.initialStkSize,
+ &base_GHCziConc_runSparks_closure);
appendToRunQueue(cap,tso);
- cap->sparks_converted++;
}
/* -----------------------------------------------------------------------------
pool = cap->sparks;
+ // Take this opportunity to reset top/bottom modulo the size of
+ // the array, to avoid overflow. This is only possible because no
+ // stealing is happening during GC.
+ pool->bottom -= pool->top & ~pool->moduloSize;
+ pool->top &= pool->moduloSize;
+ pool->topBound = pool->top;
+
debugTrace(DEBUG_sched,
"markSparkQueue: current spark queue len=%d; (hd=%ld; tl=%ld)",
sparkPoolSize(pool), pool->bottom, pool->top);