From 709e9252d6014eef40a740d7c042352e41b615a3 Mon Sep 17 00:00:00 2001
From: Peter Lawrey <peter.lawrey@chronicle.software>
Date: Wed, 11 Aug 2021 16:53:38 +0100
Subject: [PATCH] Add direct support for sparse files under Linux (with some
 size tuning) #313

---
 .../net/openhft/chronicle/map/HugeSparseMapTest.java   | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/test/java/net/openhft/chronicle/map/HugeSparseMapTest.java b/src/test/java/net/openhft/chronicle/map/HugeSparseMapTest.java
index 5679cb835..a72f99084 100644
--- a/src/test/java/net/openhft/chronicle/map/HugeSparseMapTest.java
+++ b/src/test/java/net/openhft/chronicle/map/HugeSparseMapTest.java
@@ -18,11 +18,13 @@ public class HugeSparseMapTest {
             file.deleteOnExit();
             ChronicleMapBuilder<CharSequence, CharSequence> builder = ChronicleMapBuilder
                     .of(CharSequence.class, CharSequence.class)
-                    .averageKeySize(8)
-                    // .entries(10_000_000_000L).averageValueSize(640) // 16 TB
+                    .averageKeySize(8);
+            if (sparseFile)
+                builder.entries(3_000_000_000L).averageValueSize(16); // 216 GB
+            else
+                builder.entries(10_000_000_000L).averageValueSize(640); // 16 TB
 //                    .entries(3_000_000_000L).averageValueSize(200) // 2 TB
-                    .entries(3_000_000_000L).averageValueSize(16) // 216 GB
-                    .sparseFile(sparseFile); // ~16 TB.
+            builder.sparseFile(sparseFile); // ~16 TB.
             ChronicleMap<CharSequence, CharSequence> map = builder.createPersistedTo(file);
             return map;
         } catch (Throwable t) {