Merge pull request #93 from AGSaidi/padding

cameron314 · web-flow · commit 08c295df6bc4 · 2020-07-07T14:35:32.000-04:00
Pad out ReaderWriterQueue to a whole cache line (avoids false sharing)
diff --git a/readerwriterqueue.h b/readerwriterqueue.h
@@ -58,7 +58,7 @@
 namespace moodycamel {
 
 template<typename T, size_t MAX_BLOCK_SIZE = 512>
-class ReaderWriterQueue
+class AE_ALIGN(MOODYCAMEL_CACHE_LINE_SIZE) ReaderWriterQueue
 {
 	// Design: Based on a queue-of-queues. The low-level queues are just
 	// circular buffers with front and tail indices indicating where the

Original file line number	Diff line number	Diff line change
`@@ -58,7 +58,7 @@`
`58`	`58`	`namespace moodycamel {`
`59`	`59`
`60`	`60`	`template<typename T, size_t MAX_BLOCK_SIZE = 512>`
`61`		`-class ReaderWriterQueue`
	`61`	`+class AE_ALIGN(MOODYCAMEL_CACHE_LINE_SIZE) ReaderWriterQueue`
`62`	`62`	`{`
`63`	`63`	`// Design: Based on a queue-of-queues. The low-level queues are just`
`64`	`64`	`// circular buffers with front and tail indices indicating where the`