diff --git a/src/box/lua/load_cfg.lua b/src/box/lua/load_cfg.lua
index 55ee8e14fdada0b749ba62297ed5873f90e3231a..dd93c9a6c286e398710e969c2d5c02d7d90cc5ae 100644
--- a/src/box/lua/load_cfg.lua
+++ b/src/box/lua/load_cfg.lua
@@ -31,7 +31,7 @@ local default_cfg = {
     slab_alloc_arena    = 1.0,
     slab_alloc_minimal  = 64,
     slab_alloc_maximal  = 1024 * 1024,
-    slab_alloc_factor   = 2.0,
+    slab_alloc_factor   = 1.1,
     work_dir            = nil,
     snap_dir            = ".",
     wal_dir             = ".",
diff --git a/test/app/float_value.result b/test/app/float_value.result
index 603693b2eb4e91d105d1a9b5b48478f73cfc4882..f592757013664b3edab859e613102ffcabc88a88 100644
--- a/test/app/float_value.result
+++ b/test/app/float_value.result
@@ -1,7 +1,7 @@
 box.cfg
 1	snapshot_count:6
 2	pid_file:box.pid
-3	slab_alloc_factor:2
+3	slab_alloc_factor:1.1
 4	rows_per_wal:50
 5	background:false
 6	logger:tarantool.log
diff --git a/test/app/init_script.result b/test/app/init_script.result
index b1cac69abde02e98401dba09c5887359b74309ac..03ef3f3517410971252831ec43c0bbcb6899bec2 100644
--- a/test/app/init_script.result
+++ b/test/app/init_script.result
@@ -5,7 +5,7 @@
 box.cfg
 1	snapshot_count:6
 2	pid_file:box.pid
-3	slab_alloc_factor:2
+3	slab_alloc_factor:1.1
 4	slab_alloc_maximal:1048576
 5	background:false
 6	logger:tarantool.log
diff --git a/test/box/admin.result b/test/box/admin.result
index 973347aa1bf609cbebd3b827727fad26fa23c4a6..30217aee9a5eb3ee37f3f58fc503faebccd5c6c8 100644
--- a/test/box/admin.result
+++ b/test/box/admin.result
@@ -20,7 +20,7 @@ box.cfg
 ---
 - snapshot_count: 6
   too_long_threshold: 0.5
-  slab_alloc_factor: 2
+  slab_alloc_factor: 1.1
   slab_alloc_maximal: 1048576
   background: false
   slab_alloc_arena: 0.1
diff --git a/test/box/cfg.result b/test/box/cfg.result
index fc615be3ed65375fb4c314c964cfb8460d8efa40..bab6b13c6faaf3f2946f6bd057ae1b0d58f6e06a 100644
--- a/test/box/cfg.result
+++ b/test/box/cfg.result
@@ -12,7 +12,7 @@ t
 ---
 - - 'snapshot_count: 6'
   - 'too_long_threshold: 0.5'
-  - 'slab_alloc_factor: 2'
+  - 'slab_alloc_factor: 1.1'
   - 'slab_alloc_maximal: 1048576'
   - 'background: false'
   - 'slab_alloc_arena: 0.1'
@@ -46,7 +46,7 @@ t
 ---
 - - 'snapshot_count: 6'
   - 'too_long_threshold: 0.5'
-  - 'slab_alloc_factor: 2'
+  - 'slab_alloc_factor: 1.1'
   - 'slab_alloc_maximal: 1048576'
   - 'background: false'
   - 'slab_alloc_arena: 0.1'
@@ -117,7 +117,7 @@ box.cfg{sophia = {threads = "threads"}}
 box.cfg.slab_alloc_arena, box.cfg.slab_alloc_factor, box.cfg.sophia.threads, box.cfg.sophia.page_size
 ---
 - 1
-- 2
+- 1.1
 - 5
 - 131072
 ...
@@ -132,7 +132,7 @@ box.cfg.slab_alloc_arena, box.cfg.slab_alloc_factor, box.cfg.sophia.threads, box
 box.cfg.slab_alloc_arena, box.cfg.slab_alloc_factor, box.cfg.sophia.threads, box.cfg.sophia.page_size
 ---
 - 0.2
-- 2
+- 1.1
 - 5
 - 131072
 ...
@@ -147,7 +147,7 @@ box.cfg.slab_alloc_arena, box.cfg.slab_alloc_factor, box.cfg.sophia.threads, box
 box.cfg.slab_alloc_arena, box.cfg.slab_alloc_factor, box.cfg.sophia.threads, box.cfg.sophia.page_size
 ---
 - 0.2
-- 2
+- 1.1
 - 10
 - 131072
 ...
diff --git a/test/wal_off/oom.result b/test/wal_off/oom.result
index d029f0225265480aef57dafc68812c0fddc0686e..4619a92bebec234a0a9fde5c86725e68e0698ce8 100644
--- a/test/wal_off/oom.result
+++ b/test/wal_off/oom.result
@@ -15,11 +15,11 @@ while true do
     i = i + 1
 end;
 ---
-- error: Failed to allocate 22911 bytes in slab allocator for tuple
+- error: Failed to allocate 24643 bytes in slab allocator for tuple
 ...
 space:len();
 ---
-- 5722
+- 6155
 ...
 i = 1;
 ---
@@ -29,11 +29,11 @@ while true do
     i = i + 1
 end;
 ---
-- error: Failed to allocate 4203 bytes in slab allocator for tuple
+- error: Failed to allocate 5187 bytes in slab allocator for tuple
 ...
 space:len();
 ---
-- 6767
+- 7446
 ...
 i = 1;
 ---
@@ -43,12 +43,12 @@ while true do
     i = i + 1
 end;
 ---
-- error: Failed to allocate 1043 bytes in slab allocator for tuple
+- error: Failed to allocate 2751 bytes in slab allocator for tuple
 ...
 --# setopt delimiter ''
 space:len()
 ---
-- 7022
+- 8128
 ...
 space.index['primary']:get{0}
 ---