Add prefetch to mpscq.

2019-07-02 14:06:24 +01:00
parent daebe3f5e5
commit fdcbcf7016
2 changed files with 10 additions and 0 deletions
--- a/src/ds/bits.h
+++ b/src/ds/bits.h
@@ -136,6 +136,15 @@ namespace snmalloc
 #endif
    }

+    inline void prefetch(void* ptr)
+    {
+#if defined(PLATFORM_IS_X86)
+      _mm_prefetch(reinterpret_cast<const char *>(ptr), _MM_HINT_T0);
+#else
+#  warning "Missing pause intrinsic"
+#endif
+    }
+
    inline uint64_t tick()
    {
 #if defined(PLATFORM_IS_X86)