After allocating 32MB or more contiguous memory, huge pages
would seem to be ideal.
Signed-off-by: Richard Henderson <r...@twiddle.net>
---
exec.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/exec.c b/exec.c
index df67938..ab07f68 100644
--- a/exec.c
+++ b/exec.c
@@ -602,6 +602,8 @@ static inline void code_gen_alloc(size_t tb_size)
exit(1);
}
+ qemu_madvise(code_gen_buffer, code_gen_buffer_size, QEMU_MADV_HUGEPAGE);
+
/* Steal room for the prologue at the end of the buffer. This ensures
(via the MAX_CODE_GEN_BUFFER_SIZE limits above) that direct branches
from TB's to the prologue are going to be in range. It also means
--
1.7.11.7
