diff options
| -rw-r--r-- | lib/pure/concurrency/threadpool.nim | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/lib/pure/concurrency/threadpool.nim b/lib/pure/concurrency/threadpool.nim index 9beb39522..f8a5f9ba8 100644 --- a/lib/pure/concurrency/threadpool.nim +++ b/lib/pure/concurrency/threadpool.nim @@ -52,17 +52,14 @@ proc signal(cv: var Semaphore) = release(cv.L) signal(cv.c) -const CacheLineSize = 32 # true for most archs +const CacheLineSize = 64 # true for most archs type Barrier {.compilerproc.} = object entered: int cv: Semaphore # Semaphore takes 3 words at least - when sizeof(int) < 8: - cacheAlign: array[CacheLineSize-4*sizeof(int), byte] - left: int - cacheAlign2: array[CacheLineSize-sizeof(int), byte] - interest: bool # whether the master is interested in the "all done" event + left {.align(CacheLineSize).}: int + interest {.align(CacheLineSize).} : bool # whether the master is interested in the "all done" event proc barrierEnter(b: ptr Barrier) {.compilerproc, inline.} = # due to the signaling between threads, it is ensured we are the only |