diff --git a/src/bees.cc b/src/bees.cc
index 979f914..9a01096 100644
--- a/src/bees.cc
+++ b/src/bees.cc
@@ -231,11 +231,12 @@ bees_readahead(int const fd, off_t offset, size_t size)
 	Timer readahead_timer;
 	BEESNOTE("readahead " << name_fd(fd) << " offset " << to_hex(offset) << " len " << pretty(size));
 	BEESTOOLONG("readahead " << name_fd(fd) << " offset " << to_hex(offset) << " len " << pretty(size));
-	// This might not do anything?
+	// In the kernel, readahead() is identical to posix_fadvise(..., POSIX_FADV_DONTNEED)
 	DIE_IF_NON_ZERO(readahead(fd, offset, size));
-	// Make sure this data is in page cache
-	// Note spelling: readahead vs read ahead
-	BEESNOTE("read ahead " << name_fd(fd) << " offset " << to_hex(offset) << " len " << pretty(size));
+#if 0
+	// Make sure this data is in page cache by brute force
+	// This isn't necessary and it might even be slower
+	BEESNOTE("emulating readahead " << name_fd(fd) << " offset " << to_hex(offset) << " len " << pretty(size));
 	while (size) {
 		static uint8_t dummy[BEES_READAHEAD_SIZE];
 		size_t this_read_size = min(size, sizeof(dummy));
@@ -247,6 +248,7 @@ bees_readahead(int const fd, off_t offset, size_t size)
 		offset += this_read_size;
 		size -= this_read_size;
 	}
+#endif
 	BEESCOUNTADD(readahead_ms, readahead_timer.age() * 1000);
 }