From fe907eb4795402187d43e5fd973fd699675e1fa1 Mon Sep 17 00:00:00 2001
From: martinsumner <martin.sumner@adaptip.co.uk>
Date: Wed, 14 Dec 2016 11:38:42 +0000
Subject: [PATCH] Experiment

Perhaps the results ar epaging related - change settings to hold less in
memory and see
---
 src/leveled_penciller.erl | 4 ++--
 src/leveled_sft.erl       | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/leveled_penciller.erl b/src/leveled_penciller.erl
index d5b70d1..9be27ec 100644
--- a/src/leveled_penciller.erl
+++ b/src/leveled_penciller.erl
@@ -197,8 +197,8 @@
 -define(CURRENT_FILEX, "crr").
 -define(PENDING_FILEX, "pnd").
 -define(MEMTABLE, mem).
--define(MAX_TABLESIZE, 28000). % This is less than max - but COIN_SIDECOUNT
--define(SUPER_MAX_TABLE_SIZE, 40000).
+-define(MAX_TABLESIZE, 16000). % This is less than max - but COIN_SIDECOUNT
+-define(SUPER_MAX_TABLE_SIZE, 22000).
 -define(PROMPT_WAIT_ONL0, 5).
 -define(WORKQUEUE_BACKLOG_TOLERANCE, 4).
 -define(COIN_SIDECOUNT, 5).
diff --git a/src/leveled_sft.erl b/src/leveled_sft.erl
index 5b4f24e..77f13bc 100644
--- a/src/leveled_sft.erl
+++ b/src/leveled_sft.erl
@@ -178,7 +178,7 @@
 -define(DWORD_SIZE, 8).
 -define(CURRENT_VERSION, {0,1}).
 -define(SLOT_COUNT, 256).
--define(SLOT_GROUPWRITE_COUNT, 64).
+-define(SLOT_GROUPWRITE_COUNT, 16).
 -define(BLOCK_SIZE, 32).
 -define(BLOCK_COUNT, 4).
 -define(FOOTERPOS_HEADERPOS, 2).
@@ -188,7 +188,7 @@
 -define(COMPRESSION_LEVEL, 1).
 -define(HEADER_LEN, 56).
 -define(ITERATOR_SCANWIDTH, 1).
--define(MERGE_SCANWIDTH, 32).
+-define(MERGE_SCANWIDTH, 8).
 -define(BLOOM_WIDTH, 48).
 -define(DELETE_TIMEOUT, 10000).
 -define(MAX_KEYS, ?SLOT_COUNT * ?BLOCK_COUNT * ?BLOCK_SIZE).