From f764923fda40c5e60b55e74c76d4cf1d19793fe5 Mon Sep 17 00:00:00 2001
From: shikokuchuo <53399081+shikokuchuo@users.noreply.github.com>
Date: Tue, 30 Sep 2025 12:33:49 +0100
Subject: [PATCH 1/2] Optimize serialization threshold

---
 src/nanonext.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/nanonext.h b/src/nanonext.h
index 9548ac642..a912aa025 100644
--- a/src/nanonext.h
+++ b/src/nanonext.h
@@ -120,7 +120,7 @@ extern int R_interrupts_pending;
 #define ERROR_RET(xc) { Rf_warning("%d | %s", xc, nng_strerror(xc)); return mk_error(xc); }
 #define NANONEXT_INIT_BUFSIZE 4096
 #define NANONEXT_SERIAL_VER 3
-#define NANONEXT_SERIAL_THR 134217728
+#define NANONEXT_SERIAL_THR 67108864
 #define NANONEXT_CHUNK_SIZE INT_MAX // must be <= INT_MAX
 #define NANONEXT_STR_SIZE 40
 #define NANONEXT_WAIT_DUR 1000

From f54c01a64b4bc7a5dffb8278564c6444583ffcba Mon Sep 17 00:00:00 2001
From: shikokuchuo <53399081+shikokuchuo@users.noreply.github.com>
Date: Tue, 30 Sep 2025 14:18:27 +0100
Subject: [PATCH 2/2] Size unserialization chunk size to 64mb

---
 src/nanonext.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/nanonext.h b/src/nanonext.h
index a912aa025..ab4d50237 100644
--- a/src/nanonext.h
+++ b/src/nanonext.h
@@ -121,7 +121,7 @@ extern int R_interrupts_pending;
 #define NANONEXT_INIT_BUFSIZE 4096
 #define NANONEXT_SERIAL_VER 3
 #define NANONEXT_SERIAL_THR 67108864
-#define NANONEXT_CHUNK_SIZE INT_MAX // must be <= INT_MAX
+#define NANONEXT_CHUNK_SIZE 67108864 // must be <= INT_MAX
 #define NANONEXT_STR_SIZE 40
 #define NANONEXT_WAIT_DUR 1000
 #define NANO_ALLOC(x, sz)                                      \