From 1c669a69a86404494395c2d3f9e41106822e56d7 Mon Sep 17 00:00:00 2001
From: Aliaksandr Valialkin <valyala@gmail.com>
Date: Wed, 25 Nov 2020 21:52:17 +0200
Subject: [PATCH] lib/mergeset: tune the number of rawItemsBlocks to merge at
 once

512 blocks give higher ingestion performance and slightly lower memory usage
---
 lib/mergeset/table.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/mergeset/table.go b/lib/mergeset/table.go
index b4084b848..4284bc623 100644
--- a/lib/mergeset/table.go
+++ b/lib/mergeset/table.go
@@ -369,7 +369,7 @@ func (tb *Table) AddItems(items [][]byte) error {
 			tb.rawItemsBlocks = append(tb.rawItemsBlocks, ib)
 		}
 	}
-	if len(tb.rawItemsBlocks) >= 1024 {
+	if len(tb.rawItemsBlocks) >= 512 {
 		blocksToMerge = tb.rawItemsBlocks
 		tb.rawItemsBlocks = nil
 		tb.rawItemsLastFlushTime = fasttime.UnixTimestamp()