Gentoo Kernel benchmark
Gentoo no-mitigation 5.6.4


Gentoo no-mitigation 4.19.113: 

	Processor: Intel Core i7-3615QM @ 3.30GHz (4 Cores / 8 Threads), Motherboard: Apple Mac-C3EC7CD22292981F (259.0.0.0.0 BIOS), Chipset: Intel 3rd Gen Core DRAM, Memory: 8GB, Disk: 251GB APPLE SSD SM256E, Graphics: NVIDIA GeForce GT 650M 1GB (797/2508MHz), Audio: Cirrus Logic CS4206, Monitor: Color LCD, Network: Broadcom NetXtreme BCM57786 PCIe + Broadcom BCM4331 802.11a/b/g/n

	OS: Gentoo 2.6, Kernel: 4.19.113-gentoo-x86_64 (x86_64), Desktop: LXQt 0.14.1, Display Server: X Server 1.20.7, Display Driver: NVIDIA 440.82, OpenGL: 4.6.0, OpenCL: OpenCL 1.2 CUDA 10.2.159, Compiler: GCC 9.3.0 + Clang 9.0.1 + LLVM 9.0.1 + CUDA 10.2, File-System: ext4, Screen Resolution: 2880x1800

Gentoo no-mitigation 5.4.31: 

	Processor: Intel Core i7-3615QM @ 3.30GHz (4 Cores / 8 Threads), Motherboard: Apple Mac-C3EC7CD22292981F (259.0.0.0.0 BIOS), Chipset: Intel 3rd Gen Core DRAM, Memory: 8GB, Disk: 251GB APPLE SSD SM256E, Graphics: NVIDIA GeForce GT 650M 1GB (797/2508MHz), Audio: Cirrus Logic CS4206, Monitor: Color LCD, Network: Broadcom NetXtreme BCM57786 PCIe + Broadcom BCM4331 802.11a/b/g/n

	OS: Gentoo 2.6, Kernel: 5.4.31-gentoo-x86_64 (x86_64), Desktop: LXQt 0.14.1, Display Server: X Server 1.20.7, Display Driver: NVIDIA 440.82, OpenGL: 4.6.0, OpenCL: OpenCL 1.2 CUDA 10.2.159, Compiler: GCC 9.3.0 + Clang 9.0.1 + LLVM 9.0.1 + CUDA 10.2, File-System: ext4, Screen Resolution: 2880x1800

Gentoo no-mitigation 5.6.4: 

	Processor: Intel Core i7-3615QM @ 3.30GHz (4 Cores / 8 Threads), Motherboard: Apple Mac-C3EC7CD22292981F (259.0.0.0.0 BIOS), Chipset: Intel 3rd Gen Core DRAM, Memory: 8GB, Disk: 251GB APPLE SSD SM256E, Graphics: NVIDIA GeForce GT 650M 1GB (797/2508MHz), Audio: Cirrus Logic CS4206, Monitor: Color LCD, Network: Broadcom NetXtreme BCM57786 PCIe + Broadcom BCM4331 802.11a/b/g/n

	OS: Gentoo 2.6, Kernel: 5.6.4-gentoo-x86_64 (x86_64), Desktop: LXQt 0.14.1, Display Server: X Server 1.20.7, Display Driver: NVIDIA 440.82, OpenGL: 4.6.0, OpenCL: OpenCL 1.2 CUDA 10.2.159, Compiler: GCC 9.3.0 + Clang 9.0.1 + LLVM 9.0.1 + CUDA 10.2, File-System: ext4, Screen Resolution: 2880x1800


PostMark 1.51
Disk Transaction Performance
TPS > Higher Is Better
Gentoo no-mitigation 4.19.113 . 4411 |=======================================
Gentoo no-mitigation 4.19.113 . 4438 |=======================================
Gentoo no-mitigation 5.4.31 ... 4687 |=========================================
Gentoo no-mitigation 5.6.4 .... 4629 |========================================


Tinymembench 2018-05-28
Standard Memcpy
MB/s > Higher Is Better
Gentoo no-mitigation 4.19.113 . 9636.5 |=======================================
Gentoo no-mitigation 5.4.31 ... 9535.0 |=======================================
Gentoo no-mitigation 5.6.4 .... 9545.2 |=======================================


Tinymembench 2018-05-28
Standard Memset
MB/s > Higher Is Better
Gentoo no-mitigation 4.19.113 . 24892.2 |=====================================
Gentoo no-mitigation 5.4.31 ... 25510.9 |======================================
Gentoo no-mitigation 5.6.4 .... 24865.6 |=====================================


MBW 2018-09-08
Test: Memory Copy - Array Size: 512 MiB
MiB/s > Higher Is Better
Gentoo no-mitigation 4.19.113 . 8767.81 |======================================
Gentoo no-mitigation 5.4.31 ... 8699.71 |======================================
Gentoo no-mitigation 5.6.4 .... 8662.79 |======================================


t-test1 2017-01-13
Threads: 1
Seconds < Lower Is Better
Gentoo no-mitigation 4.19.113 . 22.08 |========================================
Gentoo no-mitigation 5.4.31 ... 21.93 |========================================
Gentoo no-mitigation 5.6.4 .... 21.70 |=======================================


pmbench
Concurrent Worker Threads: 2 - Read-Write Ratio: 50%
us - Average Page Latency < Lower Is Better
Gentoo no-mitigation 4.19.113 . 0.0878 |======================================
Gentoo no-mitigation 5.4.31 ... 0.0886 |=======================================
Gentoo no-mitigation 5.6.4 .... 0.0890 |=======================================


IPC_benchmark
Type: TCP Socket - Message Bytes: 128
Messages Per Second > Higher Is Better
Gentoo no-mitigation 4.19.113 . 2700900 |======================================
Gentoo no-mitigation 5.4.31 ... 2733423 |======================================
Gentoo no-mitigation 5.6.4 .... 2711613 |======================================


Hackbench
Count: 8 - Type: Thread
Seconds < Lower Is Better
Gentoo no-mitigation 4.19.113 . 40.51 |======================================
Gentoo no-mitigation 5.4.31 ... 41.49 |=======================================
Gentoo no-mitigation 5.6.4 .... 42.12 |========================================


SQLite Speedtest 3.30
Timed Time - Size 1,000
Seconds < Lower Is Better
Gentoo no-mitigation 4.19.113 . 95.33 |========================================
Gentoo no-mitigation 5.4.31 ... 94.26 |========================================
Gentoo no-mitigation 5.6.4 .... 94.28 |========================================


ctx_clock
Context Switch Time
Clocks < Lower Is Better
Gentoo no-mitigation 4.19.113 . 118 |=========================================
Gentoo no-mitigation 5.4.31 ... 121 |==========================================
Gentoo no-mitigation 5.6.4 .... 119 |=========================================


Facebook RocksDB 6.3.6
Test: Random Read
Op/s > Higher Is Better
Gentoo no-mitigation 4.19.113 . 13525169 |=====================================
Gentoo no-mitigation 5.4.31 ... 13567392 |=====================================
Gentoo no-mitigation 5.6.4 .... 13554627 |=====================================


OSBench
Test: Create Processes
us Per Event < Lower Is Better
Gentoo no-mitigation 4.19.113 . 23.95 |=======================================
Gentoo no-mitigation 5.4.31 ... 24.30 |=======================================
Gentoo no-mitigation 5.6.4 .... 24.79 |========================================


Schbench
Message Threads: 8 - Workers Per Message Thread: 8
usec, 99.9th Latency Percentile < Lower Is Better
Gentoo no-mitigation 4.19.113 . 85257 |=======================================
Gentoo no-mitigation 5.4.31 ... 85717 |=======================================
Gentoo no-mitigation 5.6.4 .... 88107 |========================================