Old Laptops Intel KPTI Retpoline Linux Benchmarks
Lenovo ThinkPad Linux benchmarks by Michael Larabel for a future article.


ThinkPad T61: Linux 4.14: 

	Processor: Intel Core 2 Duo T9300 @ 2.50GHz (2 Cores), Motherboard: LENOVO 6459CTO, Chipset: Intel Mobile PM965/GM965/GL960 + ICH8M-E, Memory: 4096MB, Disk: 100GB Hitachi HTS72201, Graphics: NVIDIA Quadro NVS 140M 128MB, Audio: Analog Devices AD1984, Network: Intel 82566MM Gigabit Connection + Intel PRO/Wireless

	OS: Ubuntu 17.10, Kernel: 4.14.0-041400-generic (x86_64), Desktop: GNOME Shell 3.26.2, Display Driver: nouveau 1.0.15, File-System: ext4, Screen Resolution: 1680x1050

ThinkPad T61: KPTI + Retpoline: 

	Processor: Intel Core 2 Duo T9300 @ 2.50GHz (2 Cores), Motherboard: LENOVO 6459CTO, Chipset: Intel Mobile PM965/GM965/GL960 + ICH8M-E, Memory: 4096MB, Disk: 100GB Hitachi HTS72201, Graphics: NV86 128MB, Audio: Analog Devices AD1984, Network: Intel 82566MM Gigabit Connection + Intel PRO/Wireless

	OS: Ubuntu 17.10, Kernel: 4.14.0-phx-retpoline-gcc-retpo (x86_64), Desktop: GNOME Shell 3.26.2, Display Driver: modesetting 1.19.5, OpenGL: 3.3 Mesa 17.2.2, Compiler: GCC 7.2.0, File-System: ext4, Screen Resolution: 1680x1050

ThinkPad W510: Linux 4.14: 

	Processor: Intel Core i7 720Q @ 1.60GHz (4 Cores / 8 Threads), Motherboard: LENOVO 4318CTO, Chipset: Intel Core DMI, Memory: 4096MB, Disk: 160GB FUJITSU MHZ2160B, Graphics: NVA5 1024MB, Audio: Conexant CX20585, Network: Intel 82577LM Gigabit Connection + Intel Centrino Ultimate-N 6300

	OS: Ubuntu 17.10, Kernel: 4.14.0-041400-generic (x86_64), Desktop: GNOME Shell 3.26.1, Display Server: Wayland, OpenGL: 3.3 Mesa 17.2.2, Compiler: GCC 7.2.0, File-System: ext4, Screen Resolution: 1600x900

ThinkPad W510: KPTI + Retpoline: 

	Processor: Intel Core i7 720Q @ 1.60GHz (4 Cores / 8 Threads), Motherboard: LENOVO 4318CTO, Chipset: Intel Core DMI, Memory: 4096MB, Disk: 160GB FUJITSU MHZ2160B, Graphics: NVA5 1024MB, Audio: Conexant CX20585, Network: Intel 82577LM Gigabit Connection + Intel Centrino Ultimate-N 6300

	OS: Ubuntu 17.10, Kernel: 4.14.0-phx-retpoline-gcc-retpo (x86_64), Desktop: GNOME Shell 3.26.1, Display Server: Wayland, OpenGL: 3.3 Mesa 17.2.2, Compiler: GCC 7.2.0, File-System: ext4, Screen Resolution: 1600x900

ThinkPad X1: Linux 4.14: 

	Processor: Intel Core i7-5600U @ 3.20GHz (2 Cores / 4 Threads), Motherboard: LENOVO 20BSCTO1WW(BIOS: N14ET25W 1.03), Chipset: Intel Broadwell-U-OPI, Memory: 8192MB, Disk: 128GB SAMSUNG MZNTE128, Graphics: Intel HD 5500 3072MB (950MHz), Audio: Intel Broadwell-U Audio, Network: Intel Connection + Intel Wireless 7265

	OS: Ubuntu 17.10, Kernel: 4.14.0-041400-generic (x86_64), Desktop: GNOME Shell 3.26.1, Display Server: Wayland, OpenGL: 4.5 Mesa 17.2.2, Compiler: GCC 7.2.0, File-System: ext4, Screen Resolution: 1920x1080

ThinkPad X1: KPTI + Retpoline: 

	Processor: Intel Core i7-5600U @ 3.20GHz (2 Cores / 4 Threads), Motherboard: LENOVO 20BSCTO1WW(BIOS: N14ET25W 1.03), Chipset: Intel Broadwell-U-OPI, Memory: 8192MB, Disk: 128GB SAMSUNG MZNTE128, Graphics: Intel HD 5500 3072MB (950MHz), Audio: Intel Broadwell-U Audio, Network: Intel Connection + Intel Wireless 7265

	OS: Ubuntu 17.10, Kernel: 4.14.0-phx-retpoline-gcc-retpo (x86_64), Desktop: GNOME Shell 3.26.1, Display Server: Wayland, OpenGL: 4.5 Mesa 17.2.2, Compiler: GCC 7.2.0, File-System: ext4, Screen Resolution: 1920x1080


SQLite 3.8.10.2
Test Target: Default Test Directory
Seconds < Lower Is Better
ThinkPad T61: Linux 4.14 ........ 447.25 |===============================
ThinkPad T61: KPTI + Retpoline .. 445.48 |===============================
ThinkPad W510: Linux 4.14 ....... 488.35 |==================================
ThinkPad W510: KPTI + Retpoline . 538.64 |=====================================
ThinkPad X1: Linux 4.14 ......... 91.58  |======
ThinkPad X1: KPTI + Retpoline ... 93.88  |======


Flexible IO Tester 2.1.13
Type: Random Write - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory
MB/s > Higher Is Better
ThinkPad X1: Linux 4.14 ......... 115.82 |=====================================
ThinkPad X11: KPTI + Retpoline .. 110.93 |===================================
ThinkPad W510: Linux 4.14 ....... 1.09   |
ThinkPad W510: KPTI + Retpoline . 1.08   |
ThinkPad X1: Linux 4.14 ......... 108.83 |===================================
ThinkPad X1: KPTI + Retpoline ... 114.97 |=====================================


Flexible IO Tester 2.1.13
Type: Random Write - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory
IOPS > Higher Is Better
ThinkPad X1: Linux 4.14 ......... 28951 |======================================
ThinkPad X11: KPTI + Retpoline .. 27729 |====================================
ThinkPad W510: Linux 4.14 ....... 270   |
ThinkPad W510: KPTI + Retpoline . 267   |
ThinkPad X1: Linux 4.14 ......... 27205 |====================================
ThinkPad X1: KPTI + Retpoline ... 28738 |======================================


Flexible IO Tester 2.1.13
Type: Sequential Write - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory
MB/s > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 34.74  |==========
ThinkPad T61: KPTI + Retpoline .. 34.53  |==========
ThinkPad W510: Linux 4.14 ....... 43.20  |=============
ThinkPad W510: KPTI + Retpoline . 42.76  |=============
ThinkPad X1: Linux 4.14 ......... 99.01  |==============================
ThinkPad X1: KPTI + Retpoline ... 122.43 |=====================================


Flexible IO Tester 2.1.13
Type: Sequential Write - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory
IOPS > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 8680  |===========
ThinkPad T61: KPTI + Retpoline .. 8629  |===========
ThinkPad W510: Linux 4.14 ....... 10795 |=============
ThinkPad W510: KPTI + Retpoline . 10685 |=============
ThinkPad X1: Linux 4.14 ......... 24750 |===============================
ThinkPad X1: KPTI + Retpoline ... 30604 |======================================


FS-Mark 3.3
Test: 1000 Files, 1MB Size
Files/s > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 16.50 |===============
ThinkPad T61: KPTI + Retpoline .. 16.37 |===============
ThinkPad W510: Linux 4.14 ....... 17.20 |================
ThinkPad W510: KPTI + Retpoline . 17.20 |================
ThinkPad X1: Linux 4.14 ......... 40.95 |======================================
ThinkPad X1: KPTI + Retpoline ... 40.57 |======================================


FS-Mark 3.3
Test: 4000 Files, 32 Sub Dirs, 1MB Size
Files/s > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 15.30 |==============
ThinkPad T61: KPTI + Retpoline .. 15.15 |==============
ThinkPad W510: Linux 4.14 ....... 16.78 |===============
ThinkPad W510: KPTI + Retpoline . 16.78 |===============
ThinkPad X1: Linux 4.14 ......... 42.17 |======================================
ThinkPad X1: KPTI + Retpoline ... 39.73 |====================================


Compile Bench 0.6
Test: Compile
MB/s > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 47.38  |======
ThinkPad T61: KPTI + Retpoline .. 47.55  |======
ThinkPad W510: Linux 4.14 ....... 42.08  |=====
ThinkPad W510: KPTI + Retpoline . 42.28  |=====
ThinkPad X1: Linux 4.14 ......... 310.12 |=====================================
ThinkPad X1: KPTI + Retpoline ... 271.02 |================================


Compile Bench 0.6
Test: Initial Create
MB/s > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 53.45  |========
ThinkPad T61: KPTI + Retpoline .. 49.72  |========
ThinkPad W510: Linux 4.14 ....... 62.17  |==========
ThinkPad W510: KPTI + Retpoline . 58.06  |=========
ThinkPad X1: Linux 4.14 ......... 241.32 |=====================================
ThinkPad X1: KPTI + Retpoline ... 212.36 |=================================


Go Benchmarks
Test: http
Nanoseconds/Operation < Lower Is Better
ThinkPad T61: Linux 4.14 ........ 79139  |============================
ThinkPad T61: KPTI + Retpoline .. 105614 |=====================================
ThinkPad W510: Linux 4.14 ....... 26487  |=========
ThinkPad W510: KPTI + Retpoline . 28366  |==========
ThinkPad X1: Linux 4.14 ......... 19979  |=======
ThinkPad X1: KPTI + Retpoline ... 21201  |=======


Go Benchmarks
Test: json
Nanoseconds/Operation < Lower Is Better
ThinkPad T61: Linux 4.14 ........ 74630053 |===================================
ThinkPad T61: KPTI + Retpoline .. 74753814 |===================================
ThinkPad W510: Linux 4.14 ....... 47199972 |======================
ThinkPad W510: KPTI + Retpoline . 47264907 |======================
ThinkPad X1: Linux 4.14 ......... 44678762 |=====================
ThinkPad X1: KPTI + Retpoline ... 44679572 |=====================


Go Benchmarks
Test: build
Nanoseconds/Operation < Lower Is Better
ThinkPad T61: Linux 4.14 ........ 32195224912 |==============================
ThinkPad T61: KPTI + Retpoline .. 34024344510 |================================
ThinkPad W510: Linux 4.14 ....... 28364548603 |===========================
ThinkPad W510: KPTI + Retpoline . 28975972922 |===========================
ThinkPad X1: Linux 4.14 ......... 15560772639 |===============
ThinkPad X1: KPTI + Retpoline ... 15826064487 |===============


Go Benchmarks
Test: garbage
Nanoseconds/Operation < Lower Is Better
ThinkPad T61: Linux 4.14 ........ 15778114 |==================================
ThinkPad T61: KPTI + Retpoline .. 16135985 |===================================
ThinkPad W510: Linux 4.14 ....... 8556981  |===================
ThinkPad W510: KPTI + Retpoline . 8578276  |===================
ThinkPad X1: Linux 4.14 ......... 8264076  |==================
ThinkPad X1: KPTI + Retpoline ... 8414721  |==================


GraphicsMagick 1.3.19
Operation: Sharpen
Iterations Per Minute > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 51 |================================
ThinkPad T61: KPTI + Retpoline .. 50 |===============================
ThinkPad W510: Linux 4.14 ....... 63 |=======================================
ThinkPad W510: KPTI + Retpoline . 63 |=======================================
ThinkPad X1: Linux 4.14 ......... 66 |=========================================
ThinkPad X1: KPTI + Retpoline ... 66 |=========================================


GraphicsMagick 1.3.19
Operation: Resizing
Iterations Per Minute > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 77  |========================
ThinkPad T61: KPTI + Retpoline .. 76  |========================
ThinkPad W510: Linux 4.14 ....... 96  |==============================
ThinkPad W510: KPTI + Retpoline . 94  |==============================
ThinkPad X1: Linux 4.14 ......... 126 |========================================
ThinkPad X1: KPTI + Retpoline ... 126 |========================================


Timed Apache Compilation 2.4.7
Time To Compile
Seconds < Lower Is Better
ThinkPad T61: Linux 4.14 ........ 101.08 |===================================
ThinkPad T61: KPTI + Retpoline .. 105.70 |=====================================
ThinkPad W510: Linux 4.14 ....... 63.93  |======================
ThinkPad W510: KPTI + Retpoline . 66.84  |=======================
ThinkPad X1: Linux 4.14 ......... 59.08  |=====================
ThinkPad X1: KPTI + Retpoline ... 60.13  |=====================


Timed Linux Kernel Compilation 4.13
Time To Compile
Seconds < Lower Is Better
ThinkPad T61: Linux 4.14 ........ 751.35 |====================================
ThinkPad T61: KPTI + Retpoline .. 779.00 |=====================================
ThinkPad W510: Linux 4.14 ....... 413.19 |====================
ThinkPad W510: KPTI + Retpoline . 427.19 |====================
ThinkPad X1: Linux 4.14 ......... 412.03 |====================
ThinkPad X1: KPTI + Retpoline ... 418.30 |====================


FLAC Audio Encoding 1.3.1
WAV To FLAC
Seconds < Lower Is Better
ThinkPad T61: Linux 4.14 ........ 21.01 |======================================
ThinkPad T61: KPTI + Retpoline .. 21.10 |======================================
ThinkPad W510: Linux 4.14 ....... 12.46 |======================
ThinkPad W510: KPTI + Retpoline . 12.64 |=======================
ThinkPad X1: Linux 4.14 ......... 7.08  |=============
ThinkPad X1: KPTI + Retpoline ... 7.11  |=============


Systemd Total Boot Time
Test: Total
ms < Lower Is Better
ThinkPad T61: Linux 4.14 ........ 47510 |=================================
ThinkPad T61: KPTI + Retpoline .. 55490 |======================================
ThinkPad W510: Linux 4.14 ....... 48210 |=================================
ThinkPad W510: KPTI + Retpoline . 48190 |=================================
ThinkPad X1: Linux 4.14 ......... 32310 |======================
ThinkPad X1: KPTI + Retpoline ... 34390 |========================


Systemd Total Boot Time
Test: Kernel
ms < Lower Is Better
ThinkPad T61: Linux 4.14 ........ 6760 |=====================================
ThinkPad T61: KPTI + Retpoline .. 7040 |=======================================
ThinkPad W510: Linux 4.14 ....... 5620 |===============================
ThinkPad W510: KPTI + Retpoline . 5800 |================================
ThinkPad X1: Linux 4.14 ......... 2670 |===============
ThinkPad X1: KPTI + Retpoline ... 2740 |===============


Systemd Total Boot Time
Test: Userspace
ms < Lower Is Better
ThinkPad T61: Linux 4.14 ........ 40750 |================================
ThinkPad T61: KPTI + Retpoline .. 48450 |======================================
ThinkPad W510: Linux 4.14 ....... 42580 |=================================
ThinkPad W510: KPTI + Retpoline . 42380 |=================================
ThinkPad X1: Linux 4.14 ......... 21380 |=================
ThinkPad X1: KPTI + Retpoline ... 23310 |==================


PostgreSQL pgbench 10.0
Scaling: Buffer Test - Test: Normal Load - Mode: Read Write
TPS > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 321.97  |=======
ThinkPad T61: KPTI + Retpoline .. 319.61  |=======
ThinkPad W510: Linux 4.14 ....... 338.81  |========
ThinkPad W510: KPTI + Retpoline . 337.26  |========
ThinkPad X1: Linux 4.14 ......... 1605.59 |====================================
ThinkPad X1: KPTI + Retpoline ... 1581.72 |===================================


Darktable 2.2.5
Test: Boat - Acceleration: CPU-only
Seconds < Lower Is Better
ThinkPad T61: Linux 4.14 ........ 238.80 |=====================================
ThinkPad T61: KPTI + Retpoline .. 241.42 |=====================================
ThinkPad W510: Linux 4.14 ....... 59.81  |=========
ThinkPad W510: KPTI + Retpoline . 60.05  |=========
ThinkPad X1: Linux 4.14 ......... 44.09  |=======
ThinkPad X1: KPTI + Retpoline ... 44.23  |=======


Darktable 2.2.5
Test: Masskrug - Acceleration: CPU-only
Seconds < Lower Is Better
ThinkPad T61: Linux 4.14 ........ 233.43 |====================================
ThinkPad T61: KPTI + Retpoline .. 236.65 |=====================================
ThinkPad W510: Linux 4.14 ....... 32.09  |=====
ThinkPad W510: KPTI + Retpoline . 32.65  |=====
ThinkPad X1: Linux 4.14 ......... 28.29  |====
ThinkPad X1: KPTI + Retpoline ... 28.54  |====


Darktable 2.2.5
Test: Server Room - Acceleration: CPU-only
Seconds < Lower Is Better
ThinkPad T61: Linux 4.14 ........ 221.50 |=====================================
ThinkPad T61: KPTI + Retpoline .. 224.11 |=====================================
ThinkPad W510: Linux 4.14 ....... 27.23  |====
ThinkPad W510: KPTI + Retpoline . 27.43  |=====
ThinkPad X1: Linux 4.14 ......... 22.48  |====
ThinkPad X1: KPTI + Retpoline ... 22.60  |====


GIMP 2.8.20
Test: resize
Seconds < Lower Is Better
ThinkPad T61: Linux 4.14 ........ 9.44  |================================
ThinkPad T61: KPTI + Retpoline .. 11.10 |======================================
ThinkPad W510: Linux 4.14 ....... 8.56  |=============================
ThinkPad W510: KPTI + Retpoline . 10.72 |=====================================
ThinkPad X1: Linux 4.14 ......... 3.57  |============
ThinkPad X1: KPTI + Retpoline ... 3.94  |=============


GIMP 2.8.20
Test: auto-levels
Seconds < Lower Is Better
ThinkPad T61: Linux 4.14 ........ 15.15 |=================================
ThinkPad T61: KPTI + Retpoline .. 17.19 |======================================
ThinkPad W510: Linux 4.14 ....... 13.33 |=============================
ThinkPad W510: KPTI + Retpoline . 16.08 |====================================
ThinkPad X1: Linux 4.14 ......... 6.82  |===============
ThinkPad X1: KPTI + Retpoline ... 7.30  |================


GIMP 2.8.20
Test: unsharp-mask
Seconds < Lower Is Better
ThinkPad T61: Linux 4.14 ........ 30.43 |=================================
ThinkPad T61: KPTI + Retpoline .. 35.20 |======================================
ThinkPad W510: Linux 4.14 ....... 26.92 |=============================
ThinkPad W510: KPTI + Retpoline . 31.92 |==================================
ThinkPad X1: Linux 4.14 ......... 13.50 |===============
ThinkPad X1: KPTI + Retpoline ... 14.65 |================


Redis 3.0.1
Test: LPUSH
Requests Per Second > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 174076.98  |====
ThinkPad T61: KPTI + Retpoline .. 108367.62  |==
ThinkPad W510: Linux 4.14 ....... 952845.39  |===================
ThinkPad W510: KPTI + Retpoline . 791426.52  |================
ThinkPad X1: Linux 4.14 ......... 1637504.48 |=================================
ThinkPad X1: KPTI + Retpoline ... 1527545.33 |===============================


Redis 3.0.1
Test: GET
Requests Per Second > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 193811.62  |===
ThinkPad T61: KPTI + Retpoline .. 129535.48  |==
ThinkPad W510: Linux 4.14 ....... 1303046.83 |==================
ThinkPad W510: KPTI + Retpoline . 1111278.21 |===============
ThinkPad X1: Linux 4.14 ......... 2443039.00 |=================================
ThinkPad X1: KPTI + Retpoline ... 2165615.08 |=============================


Redis 3.0.1
Test: SET
Requests Per Second > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 165079.92  |===
ThinkPad T61: KPTI + Retpoline .. 107773.49  |==
ThinkPad W510: Linux 4.14 ....... 1009039.19 |====================
ThinkPad W510: KPTI + Retpoline . 857991.64  |=================
ThinkPad X1: Linux 4.14 ......... 1687647.50 |=================================
ThinkPad X1: KPTI + Retpoline ... 1546283.67 |==============================


Stress-NG 0.07.26
Test: Crypto
Bogo Ops/s > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 197.33 |========================
ThinkPad T61: KPTI + Retpoline .. 196.09 |========================
ThinkPad W510: Linux 4.14 ....... 240.87 |==============================
ThinkPad W510: KPTI + Retpoline . 240.75 |==============================
ThinkPad X1: Linux 4.14 ......... 298.66 |=====================================
ThinkPad X1: KPTI + Retpoline ... 298.79 |=====================================


Stress-NG 0.07.26
Test: Semaphores
Bogo Ops/s > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 4494717.84 |=========================
ThinkPad T61: KPTI + Retpoline .. 6034344.68 |=================================
ThinkPad W510: Linux 4.14 ....... 3239415.54 |==================
ThinkPad W510: KPTI + Retpoline . 2589374.22 |==============
ThinkPad X1: Linux 4.14 ......... 5869044.06 |================================
ThinkPad X1: KPTI + Retpoline ... 4537417.79 |=========================


Stress-NG 0.07.26
Test: Memory Copying
Bogo Ops/s > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 217.66 |==========
ThinkPad T61: KPTI + Retpoline .. 215.66 |==========
ThinkPad W510: Linux 4.14 ....... 509.15 |=======================
ThinkPad W510: KPTI + Retpoline . 507.41 |=======================
ThinkPad X1: Linux 4.14 ......... 832.24 |=====================================
ThinkPad X1: KPTI + Retpoline ... 825.76 |=====================================


Stress-NG 0.07.26
Test: Socket Activity
Bogo Ops/s > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 954.02  |=====================
ThinkPad T61: KPTI + Retpoline .. 607.44  |=============
ThinkPad W510: Linux 4.14 ....... 1493.17 |=================================
ThinkPad W510: KPTI + Retpoline . 1057.14 |=======================
ThinkPad X1: Linux 4.14 ......... 1640.05 |====================================
ThinkPad X1: KPTI + Retpoline ... 1115.78 |========================


Stress-NG 0.07.26
Test: Context Switching
Bogo Ops/s > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 505190.48 |==================
ThinkPad T61: KPTI + Retpoline .. 340906.57 |============
ThinkPad W510: Linux 4.14 ....... 847639.34 |===============================
ThinkPad W510: KPTI + Retpoline . 592191.89 |======================
ThinkPad X1: Linux 4.14 ......... 929902.85 |==================================
ThinkPad X1: KPTI + Retpoline ... 817200.34 |==============================


Stress-NG 0.07.26
Test: System V Message Passing
Bogo Ops/s > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 1429892.96 |============
ThinkPad T61: KPTI + Retpoline .. 764023.46  |======
ThinkPad W510: Linux 4.14 ....... 3988434.84 |=================================
ThinkPad W510: KPTI + Retpoline . 1525006.60 |=============
ThinkPad X1: Linux 4.14 ......... 2221473.92 |==================
ThinkPad X1: KPTI + Retpoline ... 1731089.18 |==============


Apache Benchmark 2.4.7
Static Web Page Serving
Requests Per Second > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 7331.48  |===========
ThinkPad T61: KPTI + Retpoline .. 6254.06  |==========
ThinkPad W510: Linux 4.14 ....... 10611.38 |=================
ThinkPad W510: KPTI + Retpoline . 8970.47  |==============
ThinkPad X1: Linux 4.14 ......... 22448.41 |===================================
ThinkPad X1: KPTI + Retpoline ... 18798.24 |=============================


PHPBench 0.8.1
PHP Benchmark Suite
Score > Higher Is Better
ThinkPad T61: Linux 4.14 ........ 225862 |====================
ThinkPad T61: KPTI + Retpoline .. 216549 |===================
ThinkPad W510: Linux 4.14 ....... 243440 |=====================
ThinkPad W510: KPTI + Retpoline . 241961 |=====================
ThinkPad X1: Linux 4.14 ......... 418648 |=====================================
ThinkPad X1: KPTI + Retpoline ... 422559 |=====================================


Flexible IO Tester 2.1.13
Type: Random Write - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory
IOPS > Higher Is Better
ThinkPad T61: Linux 4.14 ....... 210 |=========================================
ThinkPad T61: KPTI + Retpoline . 212 |=========================================