From 55bb5af253226861695fe57e570d8c6162c9aa10 Mon Sep 17 00:00:00 2001
From: Frank Denis <github@pureftpd.org>
Date: Wed, 24 Feb 2021 21:38:53 +0100
Subject: [PATCH] wasm bench: make lucet performance significantly better

By default, lucetc generates code with explicit bound checking,
even though the runtime has guard pages.

Elision only happens with --reserved-size=4GiB
---
 test/default/wasi-test-wrapper.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/default/wasi-test-wrapper.sh b/test/default/wasi-test-wrapper.sh
index d261a12b..5abcbad1 100755
--- a/test/default/wasi-test-wrapper.sh
+++ b/test/default/wasi-test-wrapper.sh
@@ -43,7 +43,7 @@ if [ -z "$WASI_RUNTIME" ] || [ "$WASI_RUNTIME" = "lucet" ]; then
   if command -v lucetc-wasi >/dev/null && command -v lucet-wasi >/dev/null; then
     lucetc-wasi \
       --target-cpu native \
-      --reserved-size "${MAX_MEMORY_TESTS}" \
+      --reserved-size "4GiB" \
       --opt-level speed \
       "$1" -o "${1}.so" &&
       lucet-wasi --dir=.:. --max-heap-size "${MAX_MEMORY_TESTS}" "${1}.so" &&