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| author | Kavon Farvardin <kavon@farvard.in> | 2018-09-23 15:29:37 -0500 |
|---|---|---|
| committer | Kavon Farvardin <kavon@farvard.in> | 2018-09-23 15:29:37 -0500 |
| commit | 84c2ad99582391005b5e873198b15e9e9eb4f78d (patch) | |
| tree | caa8c2f2ec7e97fbb4977263c6817c9af5025cf4 /includes/rts/SpinLock.h | |
| parent | 8ddb47cfcf5776e9a3c55fd37947c8a95e00fa12 (diff) | |
| parent | e68b439fe5de61b9a2ca51af472185c62ccb8b46 (diff) | |
| download | haskell-wip/T13904.tar.gz | |
update to current master againwip/T13904
Diffstat (limited to 'includes/rts/SpinLock.h')
| -rw-r--r-- | includes/rts/SpinLock.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/includes/rts/SpinLock.h b/includes/rts/SpinLock.h index 6530a3a2f0..1dca02f795 100644 --- a/includes/rts/SpinLock.h +++ b/includes/rts/SpinLock.h @@ -27,7 +27,8 @@ typedef struct SpinLock_ { StgWord lock; - StgWord64 spin; // DEBUG version counts how much it spins + StgWord64 spin; // incremented every time we spin in ACQUIRE_SPIN_LOCK + StgWord64 yield; // incremented every time we yield in ACQUIRE_SPIN_LOCK } SpinLock; #else typedef StgWord SpinLock; @@ -49,6 +50,7 @@ INLINE_HEADER void ACQUIRE_SPIN_LOCK(SpinLock * p) p->spin++; busy_wait_nop(); } + p->yield++; yieldThread(); } while (1); } @@ -66,6 +68,7 @@ INLINE_HEADER void initSpinLock(SpinLock * p) write_barrier(); p->lock = 1; p->spin = 0; + p->yield = 0; } #else |