From 699bfa6b663d563a777b7aecc9020d0547f99b0d Mon Sep 17 00:00:00 2001
From: Michael Barry <msbarry@users.noreply.github.com>
Date: Tue, 22 Mar 2022 20:34:54 -0400
Subject: [PATCH] Offload multipolygon storage to disk (reduce memory usage by
 10-15gb) (#141)

---
 .../com/onthegomap/planetiler/basemap/BasemapProfile.java     | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main/java/com/onthegomap/planetiler/basemap/BasemapProfile.java b/src/main/java/com/onthegomap/planetiler/basemap/BasemapProfile.java
index ada8a34..7d4c4a4 100644
--- a/src/main/java/com/onthegomap/planetiler/basemap/BasemapProfile.java
+++ b/src/main/java/com/onthegomap/planetiler/basemap/BasemapProfile.java
@@ -195,8 +195,8 @@ public class BasemapProfile extends ForwardingProfile {
 
   @Override
   public long estimateRamRequired(long osmFileSize) {
-    // 30gb for a 60gb OSM file is generally safe, although less might be OK too
-    return osmFileSize / 2;
+    // 20gb for a 67gb OSM file is safe, although less might be OK too
+    return osmFileSize * 20 / 67;
   }
 
   /**