From 88effe9a187ee03043af452aad42591d085aff39 Mon Sep 17 00:00:00 2001
From: Duke Leto <duke@leto.net>
Date: Thu, 1 Dec 2022 13:54:03 -0500
Subject: [PATCH] WIP large pages for randomx

---
 src/miner.cpp | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/src/miner.cpp b/src/miner.cpp
index 2fbe958e7..1da8319f7 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -1068,14 +1068,19 @@ void static RandomXMiner()
     miningTimer.start();
 
     randomx_flags flags         = randomx_get_flags();
-    // TODO: attempt to use large pages and fall back to no large pages
-    // flags |= RANDOMX_FLAG_LARGE_PAGES;
+    // attempt to use large pages and fall back to no large pages
     flags |= RANDOMX_FLAG_FULL_MEM;
     //flags |= RANDOMX_FLAG_JIT;
-    randomx_cache *randomxCache = randomx_alloc_cache(flags);
-    if (randomxCache == NULL) {
-        LogPrintf("RandomX cache is null, something is wrong, cannot mine!\n");
-        return;
+    //flags |= RANDOMX_FLAG_LARGE_PAGES;
+    randomx_cache *randomxCache = randomx_alloc_cache(flags | RANDOMX_FLAG_LARGE_PAGES);
+    if (randomxCache == nullptr) {
+        fprintf(stderr,"%s: unable to allocate with large pages\n", __func__);
+        LogPrintf("Unable to use randomx large pages, trying without...\n");
+        randomx_cache *randomxCache = randomx_alloc_cache(flags);
+        if (randomxCache == nullptr) {
+            LogPrintf("Unable to create randomx cache, cannot mine!\n");
+            return;
+        }
     }
     rxdebug("%s: created randomx flags + cache\n");
     randomx_dataset *randomxDataset = randomx_alloc_dataset(flags);