From 3c2e6c561ab890aa6f97d36d252fce1a634aba8f Mon Sep 17 00:00:00 2001
From: Ludovic 'Archivist' Lagouardette
 <archivist@172-0-0-153.lightspeed.brhmal.sbcglobal.net>
Date: Sun, 7 Jul 2019 00:34:45 +0200
Subject: [PATCH] added a madvise for record tables

---
 include/database.hpp | 2 ++
 include/fsized_map.h | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/include/database.hpp b/include/database.hpp
index 0ba8364..78bf0b2 100644
--- a/include/database.hpp
+++ b/include/database.hpp
@@ -87,6 +87,8 @@ public:
 		
 		tmp.clear();
 
+		ret.records.enforce_caching();
+
 		#pragma GCC diagnostic push
 		#pragma GCC diagnostic ignored "-Wreturn-local-addr"
 		return std::move(ret);
diff --git a/include/fsized_map.h b/include/fsized_map.h
index bb87860..9f4ea08 100644
--- a/include/fsized_map.h
+++ b/include/fsized_map.h
@@ -157,6 +157,10 @@ class mmap_array : public mmap_ptr<T>
 		posix_madvise(this->start, mapping_size, map_access);
 	}
 
+	void enforce_caching() {
+		posix_madvise(this->start, mapping_size, MADV_WILLNEED);
+	}
+
 	constexpr size_t size() {
 		return item_size;
 	}