Windows 8 vs. Windows 10 - Spectre/Meltdown Benchmarks
Tests for a future article on Phoronix.com.


Windows 10: No Mitigations: 

	Processor: Intel Core i9-7960X @ 2.81GHz (16 Cores / 32 Threads), Motherboard: MSI X299 SLI PLUS (MS-7A93) (1.A0 BIOS), Memory: 4 x 4096 MB 3000MHz, Disk: 238GB INTEL SSDPEKKW256G8, Graphics: AMD Radeon RX 550 2GB, Network: Intel I211 Gigabit Connection

	OS: Microsoft Windows 10 Pro Build 17763, Kernel: 10.0 (x86_64), Display Driver: 22.19.677.257, OpenCL: OpenCL 2.0 AMD-APP (2442.9), File-System: NTFS, Screen Resolution: 3840x2160

Windows 10: Meltdown Mitigations: 

	Processor: Intel Core i9-7960X @ 2.81GHz (16 Cores / 32 Threads), Motherboard: MSI X299 SLI PLUS (MS-7A93) (1.A0 BIOS), Memory: 4 x 4096 MB 3000MHz, Disk: 238GB INTEL SSDPEKKW256G8, Graphics: AMD Radeon RX 550 2GB, Network: Intel I211 Gigabit Connection

	OS: Microsoft Windows 10 Pro Build 17763, Kernel: 10.0 (x86_64), Display Driver: 22.19.677.257, OpenCL: OpenCL 2.0 AMD-APP (2442.9), Compiler: GCC 7.1.0, File-System: NTFS, Screen Resolution: 3840x2160

Windows 10: Spectre + Meltdown Mitigations: 

	Processor: Intel Core i9-7960X @ 2.81GHz (16 Cores / 32 Threads), Motherboard: MSI X299 SLI PLUS (MS-7A93) (1.A0 BIOS), Memory: 4 x 4096 MB 3000MHz, Disk: 238GB INTEL SSDPEKKW256G8, Graphics: AMD Radeon RX 550 2GB, Network: Intel I211 Gigabit Connection

	OS: Microsoft Windows 10 Pro Build 17763, Kernel: 10.0 (x86_64), Display Driver: 22.19.677.257, OpenCL: OpenCL 2.0 AMD-APP (2442.9), Compiler: GCC 7.1.0, File-System: NTFS, Screen Resolution: 3840x2160

Windows 8: Spectre + Meltdown Mitigations: 

	Processor: Intel Core i9-7960X @ 2.80GHz (16 Cores / 32 Threads), Motherboard: MSI X299 SLI PLUS (MS-7A93) (1.A0 BIOS), Memory: 4 x 4096 MB, Disk: 238GB NVMe INTEL SSDPEKKW25, Graphics: Microsoft Basic Display, Network: Intel I211 Gigabit Connection + ASIX AX88772B USB2.0 to Fast + Microsoft ISATAP + LAN7500 USB 2.0 to 10/100/1000

	OS: Microsoft Windows 8.1 Pro Build 9600, Kernel: 6.3 (x86_64), Display Driver: 6.3.9600.16384, Compiler: GCC 7.1.0, File-System: NTFS, Screen Resolution: 1024x768

Windows 8: Meltdown Mitigations: 

	Processor: Intel Core i9-7960X @ 2.80GHz (16 Cores / 32 Threads), Motherboard: MSI X299 SLI PLUS (MS-7A93) (1.A0 BIOS), Memory: 4 x 4096 MB, Disk: 238GB NVMe INTEL SSDPEKKW25, Graphics: Microsoft Basic Display, Network: Intel I211 Gigabit Connection + ASIX AX88772B USB2.0 to Fast + Microsoft ISATAP + LAN7500 USB 2.0 to 10/100/1000

	OS: Microsoft Windows 8.1 Pro Build 9600, Kernel: 6.3 (x86_64), Display Driver: 6.3.9600.16384, Compiler: GCC 7.1.0, File-System: NTFS, Screen Resolution: 1024x768

Windows 8: No Mitigations: 

	Processor: Intel Core i9-7960X @ 2.80GHz (16 Cores / 32 Threads), Motherboard: MSI X299 SLI PLUS (MS-7A93) (1.A0 BIOS), Memory: 4 x 4096 MB, Disk: 238GB NVMe INTEL SSDPEKKW25, Graphics: Microsoft Basic Display, Network: Intel I211 Gigabit Connection + ASIX AX88772B USB2.0 to Fast + Microsoft ISATAP + LAN7500 USB 2.0 to 10/100/1000

	OS: Microsoft Windows 8.1 Pro Build 9600, Kernel: 6.3 (x86_64), Display Driver: 6.3.9600.16384, Compiler: GCC 7.1.0, File-System: NTFS, Screen Resolution: 1024x768


Flexible IO Tester 3.1
Type: Random Write - IO Engine: Linux AIO - Buffered: Yes - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory
MB/s > Higher Is Better
Windows 10: No Mitigations ................. 725  |=================
Windows 10: Meltdown Mitigations ........... 579  |=============
Windows 10: Spectre + Meltdown Mitigations . 500  |===========
Windows 8: Spectre + Meltdown Mitigations .. 843  |===================
Windows 8: Meltdown Mitigations ............ 1113 |==========================
Windows 8: No Mitigations .................. 1218 |============================


Flexible IO Tester 3.1
Type: Random Write - IO Engine: Linux AIO - Buffered: Yes - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory
IOPS > Higher Is Better
Windows 10: No Mitigations ................. 185500 |===============
Windows 10: Meltdown Mitigations ........... 148000 |============
Windows 10: Spectre + Meltdown Mitigations . 127500 |===========
Windows 8: Spectre + Meltdown Mitigations .. 215500 |==================
Windows 8: Meltdown Mitigations ............ 285000 |========================
Windows 8: No Mitigations .................. 312000 |==========================


t-test1 2017-01-13
Threads: 2
Seconds < Lower Is Better
Windows 10: No Mitigations ................. 180 |===================
Windows 10: Meltdown Mitigations ........... 197 |====================
Windows 10: Spectre + Meltdown Mitigations . 280 |=============================
Windows 8: Spectre + Meltdown Mitigations .. 221 |=======================
Windows 8: Meltdown Mitigations ............ 174 |==================
Windows 8: No Mitigations .................. 160 |=================


Ethr 2019-01-02
Server Address: 127.0.0.1 - Protocol: TCP - Test: Latency - Threads: 8
Microseconds < Lower Is Better
Windows 10: No Mitigations ................. 14.33 |================
Windows 10: Meltdown Mitigations ........... 15.48 |=================
Windows 10: Spectre + Meltdown Mitigations . 23.98 |===========================


Ethr 2019-01-02
Server Address: 127.0.0.1 - Protocol: TCP - Test: Latency - Threads: 16
Microseconds < Lower Is Better
Windows 10: No Mitigations ................. 14.20 |================
Windows 10: Meltdown Mitigations ........... 15.02 |=================
Windows 10: Spectre + Meltdown Mitigations . 24.06 |===========================


Perl Benchmarks
Test: Interpreter
Seconds < Lower Is Better
Windows 10: No Mitigations ................. 0.01298367 |===================
Windows 10: Meltdown Mitigations ........... 0.01363817 |====================
Windows 10: Spectre + Meltdown Mitigations . 0.01507877 |======================
Windows 8: Spectre + Meltdown Mitigations .. 0.01310041 |===================
Windows 8: Meltdown Mitigations ............ 0.01134052 |=================
Windows 8: No Mitigations .................. 0.01090204 |================


OSBench
Test: Create Threads
us Per Event < Lower Is Better
Windows 10: No Mitigations ................. 30.31 |======================
Windows 10: Meltdown Mitigations ........... 30.99 |=======================
Windows 10: Spectre + Meltdown Mitigations . 36.43 |===========================
Windows 8: Spectre + Meltdown Mitigations .. 32.61 |========================
Windows 8: Meltdown Mitigations ............ 29.64 |======================
Windows 8: No Mitigations .................. 28.20 |=====================


OSBench
Test: Launch Programs
us Per Event < Lower Is Better
Windows 10: No Mitigations ................. 2388 |=========================
Windows 10: Meltdown Mitigations ........... 2295 |========================
Windows 10: Spectre + Meltdown Mitigations . 2624 |============================
Windows 8: Spectre + Meltdown Mitigations .. 2051 |======================
Windows 8: Meltdown Mitigations ............ 1947 |=====================
Windows 8: No Mitigations .................. 1185 |=============


OSBench
Test: Memory Allocations
Ns Per Event < Lower Is Better
Windows 10: No Mitigations ................. 125.00 |========================
Windows 10: Meltdown Mitigations ........... 130.00 |========================
Windows 10: Spectre + Meltdown Mitigations . 138.00 |==========================
Windows 8: Spectre + Meltdown Mitigations .. 75.99  |==============
Windows 8: Meltdown Mitigations ............ 73.17  |==============
Windows 8: No Mitigations .................. 63.45  |============


SQLite 3.22
Timed SQLite Insertions
Seconds < Lower Is Better
Windows 10: No Mitigations ................. 62.58 |==================
Windows 10: Meltdown Mitigations ........... 50.52 |===============
Windows 10: Spectre + Meltdown Mitigations . 66.55 |===================
Windows 8: Spectre + Meltdown Mitigations .. 93.48 |===========================
Windows 8: Meltdown Mitigations ............ 93.97 |===========================
Windows 8: No Mitigations .................. 75.96 |======================


Diskspd 2.0.21
Threads Per Target: 1 - Write Requests (Percent): 0 - Read Only - File Size: 100M - Block Size: 2MB
MB/s > Higher Is Better
Windows 10: No Mitigations ................. 1725 |======================
Windows 10: Meltdown Mitigations ........... 1717 |======================
Windows 10: Spectre + Meltdown Mitigations . 1699 |======================
Windows 8: Spectre + Meltdown Mitigations .. 1360 |=================
Windows 8: Meltdown Mitigations ............ 1375 |==================
Windows 8: No Mitigations .................. 2182 |============================


Diskspd 2.0.21
Threads Per Target: 1 - Write Requests (Percent): 0 - Read Only - File Size: 100M - Block Size: 2MB
IOPS > Higher Is Better
Windows 10: No Mitigations ................. 862  |======================
Windows 10: Meltdown Mitigations ........... 858  |======================
Windows 10: Spectre + Meltdown Mitigations . 849  |======================
Windows 8: Spectre + Meltdown Mitigations .. 680  |=================
Windows 8: Meltdown Mitigations ............ 688  |==================
Windows 8: No Mitigations .................. 1091 |============================


OpenSSL 1.0.1g
RSA 4096-bit Performance
Signs Per Second > Higher Is Better
Windows 10: No Mitigations ................. 134 |=====================
Windows 10: Meltdown Mitigations ........... 134 |=====================
Windows 10: Spectre + Meltdown Mitigations . 131 |=====================
Windows 8: Spectre + Meltdown Mitigations .. 182 |=============================
Windows 8: Meltdown Mitigations ............ 181 |=============================
Windows 8: No Mitigations .................. 181 |=============================


Redis 3.2.1
Test: SET
Requests Per Second > Higher Is Better
Windows 10: No Mitigations ................. 715377  |===============
Windows 10: Meltdown Mitigations ........... 711781  |===============
Windows 10: Spectre + Meltdown Mitigations . 655496  |==============
Windows 8: Spectre + Meltdown Mitigations .. 1083465 |=======================
Windows 8: Meltdown Mitigations ............ 1134436 |=========================
Windows 8: No Mitigations .................. 1154135 |=========================


Redis 3.2.1
Test: GET
Requests Per Second > Higher Is Better
Windows 10: No Mitigations ................. 992663  |================
Windows 10: Meltdown Mitigations ........... 983980  |================
Windows 10: Spectre + Meltdown Mitigations . 897465  |===============
Windows 8: Spectre + Meltdown Mitigations .. 1406604 |=======================
Windows 8: Meltdown Mitigations ............ 1537879 |=========================
Windows 8: No Mitigations .................. 1543296 |=========================


Blender 2.79a
Blend File: BMW27 - Compute: CPU-Only
Seconds < Lower Is Better
Windows 10: No Mitigations ................. 203 |============================
Windows 10: Meltdown Mitigations ........... 211 |=============================
Windows 10: Spectre + Meltdown Mitigations . 206 |============================
Windows 8: Spectre + Meltdown Mitigations .. 153 |=====================
Windows 8: Meltdown Mitigations ............ 152 |=====================
Windows 8: No Mitigations .................. 153 |=====================


BlogBench 1.1
Test: Read
Final Score > Higher Is Better
Windows 10: No Mitigations ................. 8162 |===========================
Windows 10: Meltdown Mitigations ........... 8504 |============================
Windows 10: Spectre + Meltdown Mitigations . 7549 |=========================
Windows 8: Spectre + Meltdown Mitigations .. 7246 |========================
Windows 8: Meltdown Mitigations ............ 7693 |=========================
Windows 8: No Mitigations .................. 7955 |==========================


BlogBench 1.1
Test: Write
Final Score > Higher Is Better
Windows 10: No Mitigations ................. 258 |=============================
Windows 10: Meltdown Mitigations ........... 261 |=============================
Windows 10: Spectre + Meltdown Mitigations . 228 |=========================
Windows 8: Spectre + Meltdown Mitigations .. 211 |=======================
Windows 8: Meltdown Mitigations ............ 226 |=========================
Windows 8: No Mitigations .................. 230 |==========================


7-Zip Compression 16.02
Compress Speed Test
MIPS > Higher Is Better
Windows 10: No Mitigations ................. 73047 |=======================
Windows 10: Meltdown Mitigations ........... 75399 |========================
Windows 10: Spectre + Meltdown Mitigations . 73105 |=======================
Windows 8: Spectre + Meltdown Mitigations .. 82630 |==========================
Windows 8: Meltdown Mitigations ............ 83332 |===========================
Windows 8: No Mitigations .................. 84503 |===========================


DaCapo Benchmark 9.12-MR1
Java Test: H2
msec < Lower Is Better
Windows 10: No Mitigations ................. 3794 |============================
Windows 10: Meltdown Mitigations ........... 3549 |==========================
Windows 10: Spectre + Meltdown Mitigations . 3728 |============================
Windows 8: Spectre + Meltdown Mitigations .. 3141 |=======================
Windows 8: Meltdown Mitigations ............ 3337 |=========================
Windows 8: No Mitigations .................. 3313 |========================


DaCapo Benchmark 9.12-MR1
Java Test: Jython
msec < Lower Is Better
Windows 10: No Mitigations ................. 5560 |===========================
Windows 10: Meltdown Mitigations ........... 5617 |===========================
Windows 10: Spectre + Meltdown Mitigations . 5853 |============================
Windows 8: Spectre + Meltdown Mitigations .. 4016 |===================
Windows 8: Meltdown Mitigations ............ 4024 |===================
Windows 8: No Mitigations .................. 3907 |===================


FLAC Audio Encoding 1.3.2
WAV To FLAC
Seconds < Lower Is Better
Windows 10: No Mitigations ................. 12.71 |==========================
Windows 10: Meltdown Mitigations ........... 12.67 |==========================
Windows 10: Spectre + Meltdown Mitigations . 13.01 |===========================
Windows 8: Spectre + Meltdown Mitigations .. 9.86  |====================
Windows 8: Meltdown Mitigations ............ 9.68  |====================
Windows 8: No Mitigations .................. 9.68  |====================


LAME MP3 Encoding 3.100
WAV To MP3
Seconds < Lower Is Better
Windows 10: No Mitigations ................. 15.28 |==========================
Windows 10: Meltdown Mitigations ........... 15.18 |==========================
Windows 10: Spectre + Meltdown Mitigations . 15.57 |===========================
Windows 8: Spectre + Meltdown Mitigations .. 11.23 |===================
Windows 8: Meltdown Mitigations ............ 11.23 |===================
Windows 8: No Mitigations .................. 11.19 |===================


Git
Time To Complete Common Git Commands
Seconds < Lower Is Better
Windows 10: No Mitigations ................. 12.09 |==========================
Windows 10: Meltdown Mitigations ........... 12.42 |==========================
Windows 10: Spectre + Meltdown Mitigations . 12.76 |===========================
Windows 8: Spectre + Meltdown Mitigations .. 10.92 |=======================
Windows 8: Meltdown Mitigations ............ 10.23 |======================
Windows 8: No Mitigations .................. 10.32 |======================


Go Benchmarks
Test: http
Nanoseconds/Operation < Lower Is Better
Windows 10: No Mitigations ................. 4413 |=================
Windows 10: Meltdown Mitigations ........... 4401 |=================
Windows 10: Spectre + Meltdown Mitigations . 4677 |==================
Windows 8: Spectre + Meltdown Mitigations .. 7394 |============================
Windows 8: Meltdown Mitigations ............ 6789 |==========================
Windows 8: No Mitigations .................. 6680 |=========================


IOzone 3.465
Record Size: 4Kb - File Size: 4GB - Disk Test: Read Performance
MB/s > Higher Is Better
Windows 10: No Mitigations ................. 1267 |=================
Windows 10: Meltdown Mitigations ........... 1213 |================
Windows 10: Spectre + Meltdown Mitigations . 895  |============
Windows 8: Spectre + Meltdown Mitigations .. 1293 |==================
Windows 8: Meltdown Mitigations ............ 1878 |==========================
Windows 8: No Mitigations .................. 2060 |============================


PHPBench 0.8.1
PHP Benchmark Suite
Score > Higher Is Better
Windows 10: No Mitigations ................. 218575 |===============
Windows 10: Meltdown Mitigations ........... 216597 |===============
Windows 10: Spectre + Meltdown Mitigations . 212225 |===============
Windows 8: Spectre + Meltdown Mitigations .. 362516 |==========================
Windows 8: Meltdown Mitigations ............ 367800 |==========================
Windows 8: No Mitigations .................. 361923 |==========================


Darktable 2.4.1
Test: Masskrug - Acceleration: CPU-only
Seconds < Lower Is Better
Windows 10: No Mitigations ................. 0.50 |==========================
Windows 10: Meltdown Mitigations ........... 0.54 |============================
Windows 10: Spectre + Meltdown Mitigations . 0.51 |==========================
Windows 8: Spectre + Meltdown Mitigations .. 0.52 |===========================
Windows 8: Meltdown Mitigations ............ 0.52 |===========================
Windows 8: No Mitigations .................. 0.51 |==========================


Tesseract OCR v4.0.0.20181030
Time To OCR 7 Images
Seconds < Lower Is Better
Windows 10: No Mitigations ................. 76.88 |=======================
Windows 10: Meltdown Mitigations ........... 80.61 |========================
Windows 10: Spectre + Meltdown Mitigations . 89.08 |===========================
Windows 8: Spectre + Meltdown Mitigations .. 65.84 |====================
Windows 8: Meltdown Mitigations ............ 54.17 |================
Windows 8: No Mitigations .................. 52.84 |================


Flexible IO Tester 3.1
Type: Random Read - IO Engine: Windows AIO - Buffered: Yes - Direct: No - Block Size: 2MB - Disk Target: Default Test Directory
MB/s > Higher Is Better
Windows 10: No Mitigations ................. 3650 |==============
Windows 10: Meltdown Mitigations ........... 3674 |==============
Windows 10: Spectre + Meltdown Mitigations . 3556 |=============
Windows 8: Spectre + Meltdown Mitigations .. 7318 |============================
Windows 8: Meltdown Mitigations ............ 7366 |============================
Windows 8: No Mitigations .................. 7408 |============================


Flexible IO Tester 3.1
Type: Random Write - IO Engine: Windows AIO - Buffered: Yes - Direct: No - Block Size: 2MB - Disk Target: Default Test Directory
MB/s > Higher Is Better
Windows 10: No Mitigations ................. 2747 |=============
Windows 10: Meltdown Mitigations ........... 2810 |==============
Windows 10: Spectre + Meltdown Mitigations . 2707 |=============
Windows 8: Spectre + Meltdown Mitigations .. 5446 |==========================
Windows 8: Meltdown Mitigations ............ 5459 |==========================
Windows 8: No Mitigations .................. 5797 |============================


Flexible IO Tester 3.1
Type: Sequential Read - IO Engine: Windows AIO - Buffered: Yes - Direct: No - Block Size: 2MB - Disk Target: Default Test Directory
MB/s > Higher Is Better
Windows 10: No Mitigations ................. 3565 |==============
Windows 10: Meltdown Mitigations ........... 3647 |==============
Windows 10: Spectre + Meltdown Mitigations . 3586 |==============
Windows 8: Spectre + Meltdown Mitigations .. 7322 |============================
Windows 8: Meltdown Mitigations ............ 7373 |============================
Windows 8: No Mitigations .................. 7385 |============================


Flexible IO Tester 3.1
Type: Sequential Write - IO Engine: Windows AIO - Buffered: Yes - Direct: No - Block Size: 2MB - Disk Target: Default Test Directory
MB/s > Higher Is Better
Windows 10: No Mitigations ................. 2754 |==========================
Windows 10: Meltdown Mitigations ........... 2777 |==========================
Windows 10: Spectre + Meltdown Mitigations . 2680 |=========================
Windows 8: Spectre + Meltdown Mitigations .. 2923 |===========================
Windows 8: Meltdown Mitigations ............ 2951 |============================
Windows 8: No Mitigations .................. 2979 |============================


AppTimer
Time To Launch: LibreOffice
Seconds < Lower Is Better
Windows 10: No Mitigations ................. 0.76 |=====================
Windows 10: Meltdown Mitigations ........... 0.89 |=========================
Windows 10: Spectre + Meltdown Mitigations . 0.99 |============================
Windows 8: Spectre + Meltdown Mitigations .. 0.90 |=========================
Windows 8: Meltdown Mitigations ............ 0.42 |============
Windows 8: No Mitigations .................. 0.41 |============


AppTimer
Time To Launch: Blender 2.79
Seconds < Lower Is Better
Windows 10: No Mitigations ................. 0.04 |============================
Windows 10: Meltdown Mitigations ........... 0.03 |=====================
Windows 10: Spectre + Meltdown Mitigations . 0.04 |============================
Windows 8: Spectre + Meltdown Mitigations .. 0.03 |=====================
Windows 8: Meltdown Mitigations ............ 0.03 |=====================
Windows 8: No Mitigations .................. 0.03 |=====================


AppTimer
Time To Launch: File Explorer
Seconds < Lower Is Better
Windows 10: No Mitigations ................. 0.09 |============================
Windows 10: Meltdown Mitigations ........... 0.07 |======================
Windows 10: Spectre + Meltdown Mitigations . 0.09 |============================
Windows 8: Spectre + Meltdown Mitigations .. 0.07 |======================
Windows 8: Meltdown Mitigations ............ 0.07 |======================
Windows 8: No Mitigations .................. 0.06 |===================


AppTimer
Time To Launch: VLC Media Player
Seconds < Lower Is Better
Windows 10: No Mitigations ................. 0.15 |==========================
Windows 10: Meltdown Mitigations ........... 0.15 |==========================
Windows 10: Spectre + Meltdown Mitigations . 0.16 |============================
Windows 8: Spectre + Meltdown Mitigations .. 0.12 |=====================
Windows 8: Meltdown Mitigations ............ 0.13 |=======================
Windows 8: No Mitigations .................. 0.13 |=======================


Maxon Cinebench 15.038
Test: Multi-Core Test
pts > Higher Is Better
Windows 10: No Mitigations ................. 3226 |============================
Windows 10: Meltdown Mitigations ........... 1452 |=============
Windows 10: Spectre + Meltdown Mitigations . 1205 |==========
Windows 8: Spectre + Meltdown Mitigations .. 3199 |============================
Windows 8: Meltdown Mitigations ............ 3220 |============================
Windows 8: No Mitigations .................. 3212 |============================


Maxon Cinebench 15.038
Test: Single-Core Test
pts > Higher Is Better
Windows 10: No Mitigations ................. 194 |=============================
Windows 10: Meltdown Mitigations ........... 130 |===================
Windows 10: Spectre + Meltdown Mitigations . 127 |===================
Windows 8: Spectre + Meltdown Mitigations .. 194 |=============================
Windows 8: Meltdown Mitigations ............ 193 |=============================
Windows 8: No Mitigations .................. 194 |=============================


Geekbench 4.3.3
Test: Multi Core
Score > Higher Is Better
Windows 10: Spectre + Meltdown Mitigations . 41084 |===========================
Windows 10: Meltdown Mitigations ........... 41341 |===========================
Windows 10: No Mitigations ................. 41760 |===========================
Windows 8: Spectre + Meltdown Mitigations .. 38725 |=========================
Windows 8: Meltdown Mitigations ............ 39265 |=========================
Windows 8: No Mitigations .................. 39378 |=========================


Geekbench 4.3.3
Test: Single Core
Score > Higher Is Better
Windows 10: Spectre + Meltdown Mitigations . 5256 |============================
Windows 10: Meltdown Mitigations ........... 5263 |============================
Windows 10: No Mitigations ................. 5300 |============================
Windows 8: Spectre + Meltdown Mitigations .. 5098 |===========================
Windows 8: Meltdown Mitigations ............ 5109 |===========================
Windows 8: No Mitigations .................. 5168 |===========================


GIMP 2.10.0
Test: unsharp-mask
Seconds < Lower Is Better
Windows 8: Meltdown Mitigations ........... 59.55 |===========================
Windows 8: Spectre + Meltdown Mitigations . 62.18 |============================
Windows 8: No Mitigations ................. 58.20 |==========================


GIMP 2.10.0
Test: resize
Seconds < Lower Is Better
Windows 8: Meltdown Mitigations ........... 15.87 |===========================
Windows 8: Spectre + Meltdown Mitigations . 16.56 |============================
Windows 8: No Mitigations ................. 15.34 |==========================


GIMP 2.10.0
Test: rotate
Seconds < Lower Is Better
Windows 8: Meltdown Mitigations ........... 24.81 |===========================
Windows 8: Spectre + Meltdown Mitigations . 26.14 |============================
Windows 8: No Mitigations ................. 24.37 |==========================


GIMP 2.10.0
Test: auto-levels
Seconds < Lower Is Better
Windows 8: Meltdown Mitigations ........... 38.21 |===========================
Windows 8: Spectre + Meltdown Mitigations . 39.56 |============================
Windows 8: No Mitigations ................. 37.68 |===========================