From 507c31f1cd962b11d093ccf1752d7c9f212a7744 Mon Sep 17 00:00:00 2001
From: Adrian Sutton <adrian.sutton@consensys.net>
Date: Tue, 30 Apr 2019 05:57:52 +1000
Subject: [PATCH] Increase RocksDB max-background-compactions and
 background-thread-count to 4 by default.  Improves fast sync times even on a
 t3.large instance (2 cores). (#1364)

---
 .../pantheon/services/kvstore/RocksDbConfiguration.java       | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/services/kvstore/src/main/java/tech/pegasys/pantheon/services/kvstore/RocksDbConfiguration.java b/services/kvstore/src/main/java/tech/pegasys/pantheon/services/kvstore/RocksDbConfiguration.java
index d6872022ae..66dbe91d72 100644
--- a/services/kvstore/src/main/java/tech/pegasys/pantheon/services/kvstore/RocksDbConfiguration.java
+++ b/services/kvstore/src/main/java/tech/pegasys/pantheon/services/kvstore/RocksDbConfiguration.java
@@ -94,7 +94,7 @@ public static class Builder {
     @CommandLine.Option(
         names = {"--Xrocksdb-max-background-compactions"},
         hidden = true,
-        defaultValue = "1",
+        defaultValue = "4",
         paramLabel = "<INTEGER>",
         description =
             "Maximum number of RocksDB background compactions (default: ${DEFAULT-VALUE})")
@@ -103,7 +103,7 @@ public static class Builder {
     @CommandLine.Option(
         names = {"--Xrocksdb-background-thread-count"},
         hidden = true,
-        defaultValue = "1",
+        defaultValue = "4",
         paramLabel = "<INTEGER>",
         description = "Number of RocksDB background threads (default: ${DEFAULT-VALUE})")
     int backgroundThreadCount;