From 3a128281cd8fec1c698346191c240a771f80d72c Mon Sep 17 00:00:00 2001
From: mischief <mischief@offblast.org>
Date: Thu, 20 Aug 2026 17:57:27 -0300
Subject: randomx: optional 2 MB large pages for the cache, dataset and
 scratchpads

RandomX reads its 256 MB cache, 2 GB dataset and per-VM scratchpads at random,
so most accesses miss the TLB on 4 KB pages. Requesting 2 MB pages recovers
roughly a tenth of the hash rate. Each allocation tries large pages first and
falls back to normal pages when the pool is not reserved, so nothing regresses
when hugepages are unavailable. -nolargepages opts out, and the diagnostics
report which allocations got large pages.
---
 src/net.cpp | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/net.cpp')

diff --git a/src/net.cpp b/src/net.cpp
index ecfd565..287a4bd 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -366,6 +366,7 @@ string GetDiagnosticsText()
                                      nMining,
                                      (RandomXFastReady() ? 2080 : 256) + 2 * nMining).c_str()
                          : ", not mining");
+    str += strprintf("  large pages       %s\n", RandomXLargePagesStatus());
 
     str += SockAccountingText();
 
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