Intel Ivy Bridge Spectre and Meltdown Mitigation Performance Intel Core i5-3570 testing with a ASUS P8Z77-V (2104 BIOS) and Zotac NVIDIA GeForce GTX 1070 8GB on Ubuntu 18.04 via the Phoronix Test Suite. Ubuntu - mitigations=off: Processor: Intel Core i5-3570 @ 4.20GHz (4 Cores), Motherboard: ASUS P8Z77-V (2104 BIOS), Chipset: Intel Xeon E3-1200 v2/3rd, Memory: 8192MB, Disk: 480GB GOODRAM + 250GB Samsung SSD 840 + 480GB Patriot Burst + 256GB SSDPR-CX400-256 + 1000GB Western Digital WD10EFRX-68P + 1000GB Seagate ST1000DM010-2EP1 + 128GB SanDisk SDSSDHP1 + 8GB Flash Disk, Graphics: Zotac NVIDIA GeForce GTX 1070 8GB (139/405MHz), Audio: Realtek ALC892, Monitor: LG ULTRAWIDE, Network: Intel 82579V + Qualcomm Atheros AR9485 OS: Ubuntu 18.04, Kernel: 5.0.0-36-generic (x86_64), Desktop: GNOME Shell 3.28.4, Display Server: X Server 1.20.4, Display Driver: NVIDIA 440.26, Compiler: GCC 7.4.0, File-System: ext4, Screen Resolution: 2560x1080 Ubuntu - mitigations=auto: Processor: Intel Core i5-3570 @ 4.20GHz (4 Cores), Motherboard: ASUS P8Z77-V (2104 BIOS), Chipset: Intel Xeon E3-1200 v2/3rd, Memory: 8192MB, Disk: 480GB GOODRAM + 250GB Samsung SSD 840 + 480GB Patriot Burst + 256GB SSDPR-CX400-256 + 1000GB Western Digital WD10EFRX-68P + 1000GB Seagate ST1000DM010-2EP1 + 128GB SanDisk SDSSDHP1 + 8GB Flash Disk, Graphics: Zotac NVIDIA GeForce GTX 1070 8GB (772/810MHz), Audio: Realtek ALC892, Monitor: LG ULTRAWIDE, Network: Intel 82579V + Qualcomm Atheros AR9485 OS: Ubuntu 18.04, Kernel: 5.0.0-36-generic (x86_64), Desktop: GNOME Shell 3.28.4, Display Server: X Server 1.20.4, Display Driver: NVIDIA 440.26, Compiler: GCC 7.4.0, File-System: ext4, Screen Resolution: 2560x1080 Sockperf 3.4 Test: Throughput Messages Per Second > Higher Is Better Ubuntu - mitigations=off .. 387212 |=========================================== Ubuntu - mitigations=auto . 323696 |==================================== Sockperf 3.4 Test: Latency Ping Pong usec < Lower Is Better Ubuntu - mitigations=off .. 4.57 |=========================================== Ubuntu - mitigations=auto . 4.78 |============================================= Sockperf 3.4 Test: Latency Under Load usec < Lower Is Better Ubuntu - mitigations=off .. 21.50 |=========================================== Ubuntu - mitigations=auto . 21.92 |============================================ Stress-NG 0.07.26 Test: Crypto Bogo Ops/s > Higher Is Better Ubuntu - mitigations=off .. 805.99 |=========================================== Ubuntu - mitigations=auto . 798.86 |=========================================== Stress-NG 0.07.26 Test: Forking Bogo Ops/s > Higher Is Better Ubuntu - mitigations=off .. 32938.65 |========================================= Ubuntu - mitigations=auto . 29295.62 |==================================== Stress-NG 0.07.26 Test: CPU Stress Bogo Ops/s > Higher Is Better Ubuntu - mitigations=off .. 1189.35 |========================================== Ubuntu - mitigations=auto . 1188.40 |========================================== ctx_clock Context Switch Time Clocks < Lower Is Better Ubuntu - mitigations=off .. 150 |======= Ubuntu - mitigations=auto . 952 |============================================== Flexible IO Tester 3.16 Type: Sequential Read - IO Engine: Linux AIO - Buffered: Yes - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better Ubuntu - mitigations=off . 380 |=============================================== Flexible IO Tester 3.16 Type: Sequential Read - IO Engine: Linux AIO - Buffered: Yes - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better Ubuntu - mitigations=off . 97367 |============================================= Flexible IO Tester 3.16 Type: Sequential Write - IO Engine: Linux AIO - Buffered: Yes - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better Ubuntu - mitigations=off . 267 |=============================================== Flexible IO Tester 3.16 Type: Sequential Write - IO Engine: Linux AIO - Buffered: Yes - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory IOPS > Higher Is Better Ubuntu - mitigations=off . 68393 |=============================================