From cf0c981dce05b372e062a19a48068088a2affc6c Mon Sep 17 00:00:00 2001
From: twoneis <git@chpu.eu>
Date: Fri, 25 Apr 2025 10:12:22 +0200
Subject: [PATCH] don't reuse spots

---
 code/leak.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/code/leak.c b/code/leak.c
index afee48220..b543bb6dd 100644
--- a/code/leak.c
+++ b/code/leak.c
@@ -12,7 +12,7 @@
 
 // where does this come from?
 #define OBJS_PER_SLAB 42
-#define SPRAY	      (OBJS_PER_SLAB * 100)
+#define SPRAY	      (OBJS_PER_SLAB * 200)
 #define PIPES	      (OBJS_PER_SLAB * 10)
 
 int spray[SPRAY][2];
@@ -48,7 +48,7 @@ main(void)
 	FILE *device = fopen(LKM_DEVICE, "r+");
 
 	printf("main: spray to reduce TLB noise part 1: %u objects\n", SPRAY);
-	for (size_t i = 0; i < SPRAY; i++) {
+	for (size_t i = 0; i < SPRAY / 2; i++) {
 		int ret;
 		ret = pipe2(spray[i], O_NONBLOCK);
 		if (ret < 0) {
@@ -104,7 +104,7 @@ main(void)
 	size_t t_delta;
 	size_t t_prev = -1;
 	size_t last_slab = -1;
-	for (size_t i = 0; i < SPRAY; i++) {
+	for (size_t i = SPRAY / 2; i < SPRAY; i++) {
 		pipe2(spray[i], O_NONBLOCK);
 
 		size_t t0 = rdtsc_begin();