Ubuntu 18.04 L1TF Foreshadow VM Testing KVM testing on Ubuntu 18.04 on Xeon E3-1280 v5 and dual Xeon Gold 6138 systems. Xeon E3 v5: Unpatched: Processor: 4 x Intel Core (Skylake IBRS) @ 3.70GHz (4 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (1.10.2-1ubuntu1 BIOS), Chipset: Intel 440FX- 82441FX PMC, Memory: 8192MB, Disk: 54GB, Graphics: llvmpipe 8064MB, Audio: QEMU Generic, Network: Red Hat Virtio device OS: Ubuntu 18.04, Kernel: 4.15.0-29-generic (x86_64), Desktop: GNOME Shell 3.28.2, Display Server: X Server 1.19.6, Display Driver: modesetting 1.19.6, OpenGL: 3.3 Mesa 18.0.5 (LLVM 6.0 256 bits), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM Xeon E3 v5: Default Mitigation: Processor: 4 x Intel Core (Skylake IBRS) @ 3.70GHz (4 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (1.10.2-1ubuntu1 BIOS), Chipset: Intel 440FX- 82441FX PMC, Memory: 8192MB, Disk: 54GB, Graphics: llvmpipe 8064MB, Audio: QEMU Generic, Network: Red Hat Virtio device OS: Ubuntu 18.04, Kernel: 4.15.0-32-generic (x86_64), Desktop: GNOME Shell 3.28.2, Display Server: X Server 1.19.6, Display Driver: modesetting 1.19.6, OpenGL: 3.3 Mesa 18.0.5 (LLVM 6.0 256 bits), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM Xeon Gold: Unpatched: Processor: 40 x Intel Xeon (Skylake IBRS) @ 2.00GHz (40 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (1.10.2-1ubuntu1 BIOS), Chipset: Intel 440FX- 82441FX PMC, Memory: 47104MB, Disk: 162GB, Graphics: llvmpipe 46848MB, Audio: QEMU Generic, Network: Red Hat Virtio device OS: Ubuntu 18.04, Kernel: 4.15.0-29-generic (x86_64), Desktop: GNOME Shell 3.28.2, Display Server: X Server 1.19.6, Display Driver: modesetting 1.19.6, OpenGL: 3.3 Mesa 18.0.5 (LLVM 6.0 256 bits), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM Xeon Gold: Default Mitigation: Processor: 40 x Intel Xeon (Skylake IBRS) @ 2.00GHz (40 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (1.10.2-1ubuntu1 BIOS), Chipset: Intel 440FX- 82441FX PMC, Memory: 47104MB, Disk: 162GB, Graphics: llvmpipe 46848MB, Audio: QEMU Generic, Network: Red Hat Virtio device OS: Ubuntu 18.04, Kernel: 4.15.0-32-generic (x86_64), Desktop: GNOME Shell 3.28.2, Display Server: X Server 1.19.6, Display Driver: modesetting 1.19.6, OpenGL: 3.3 Mesa 18.0.5 (LLVM 6.0 256 bits), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM Compile Bench 0.6 Test: Compile MB/s > Higher Is Better Xeon E3 v5: Unpatched .......... 1328.00 |================================== Xeon E3 v5: Default Mitigation . 1289.39 |================================= Xeon Gold: Unpatched ........... 1452.53 |===================================== Xeon Gold: Default Mitigation .. 1376.39 |=================================== TTSIOD 3D Renderer 2.3b Phong Rendering With Soft-Shadow Mapping FPS > Higher Is Better Xeon E3 v5: Unpatched .......... 176.73 |============ Xeon E3 v5: Default Mitigation . 177.37 |============ Xeon Gold: Unpatched ........... 560.15 |====================================== Xeon Gold: Default Mitigation .. 557.89 |====================================== Hackbench Count: 4 - Type: Thread Seconds < Lower Is Better Xeon E3 v5: Unpatched .......... 39.51 |======================================= Xeon E3 v5: Default Mitigation . 37.61 |===================================== Xeon Gold: Unpatched ........... 12.74 |============= Xeon Gold: Default Mitigation .. 12.92 |============= Hackbench Count: 8 - Type: Thread Seconds < Lower Is Better Xeon E3 v5: Unpatched .......... 71.78 |======================================= Xeon E3 v5: Default Mitigation . 69.68 |====================================== Xeon Gold: Unpatched ........... 26.55 |============== Xeon Gold: Default Mitigation .. 26.27 |============== Hackbench Count: 16 - Type: Thread Seconds < Lower Is Better Xeon E3 v5: Unpatched .......... 136.41 |====================================== Xeon E3 v5: Default Mitigation . 133.13 |===================================== Xeon Gold: Unpatched ........... 49.40 |============== Xeon Gold: Default Mitigation .. 50.48 |============== Hackbench Count: 4 - Type: Process Seconds < Lower Is Better Xeon E3 v5: Unpatched .......... 36.79 |======================================= Xeon E3 v5: Default Mitigation . 35.64 |====================================== Xeon Gold: Unpatched ........... 14.09 |=============== Xeon Gold: Default Mitigation .. 14.10 |=============== Hackbench Count: 8 - Type: Process Seconds < Lower Is Better Xeon E3 v5: Unpatched .......... 69.47 |======================================= Xeon E3 v5: Default Mitigation . 67.91 |====================================== Xeon Gold: Unpatched ........... 26.67 |=============== Xeon Gold: Default Mitigation .. 26.62 |=============== Hackbench Count: 16 - Type: Process Seconds < Lower Is Better Xeon E3 v5: Unpatched .......... 136.41 |====================================== Xeon E3 v5: Default Mitigation . 134.25 |===================================== Xeon Gold: Unpatched ........... 46.35 |============= Xeon Gold: Default Mitigation .. 45.85 |============= MariaDB 10.3.8 Clients: 8 Queries Per Second > Higher Is Better Xeon E3 v5: Unpatched .......... 117 |=================== Xeon E3 v5: Default Mitigation . 115 |================== Xeon Gold: Unpatched ........... 255 |========================================= Xeon Gold: Default Mitigation .. 250 |======================================== PostgreSQL pgbench 10.3 Scaling: Buffer Test - Test: Normal Load - Mode: Read Only TPS > Higher Is Better Xeon E3 v5: Unpatched .......... 68334.00 |======= Xeon E3 v5: Default Mitigation . 69546.29 |======= Xeon Gold: Unpatched ........... 341888.47 |=================================== Xeon Gold: Default Mitigation .. 338969.26 |=================================== PostgreSQL pgbench 10.3 Scaling: Buffer Test - Test: Normal Load - Mode: Read Write TPS > Higher Is Better Xeon E3 v5: Unpatched .......... 1575.39 |=========== Xeon E3 v5: Default Mitigation . 1554.72 |=========== Xeon Gold: Unpatched ........... 5125.32 |===================================== Xeon Gold: Default Mitigation .. 5146.82 |===================================== Redis 4.0.8 Test: LPOP Requests Per Second > Higher Is Better Xeon E3 v5: Unpatched .......... 2708988.79 |================================== Xeon E3 v5: Default Mitigation . 1796423.87 |======================= Xeon Gold: Unpatched ........... 2222541.50 |============================ Xeon Gold: Default Mitigation .. 1752956.75 |====================== Redis 4.0.8 Test: LPUSH Requests Per Second > Higher Is Better Xeon E3 v5: Unpatched .......... 1703830.04 |================================== Xeon E3 v5: Default Mitigation . 1651542.65 |================================= Xeon Gold: Unpatched ........... 1473653.54 |============================= Xeon Gold: Default Mitigation .. 1472162.56 |============================= Redis 4.0.8 Test: GET Requests Per Second > Higher Is Better Xeon E3 v5: Unpatched .......... 2683822.96 |================================== Xeon E3 v5: Default Mitigation . 2499856.46 |================================ Xeon Gold: Unpatched ........... 2048089.54 |========================== Xeon Gold: Default Mitigation .. 2067226.83 |========================== Stress-NG 0.07.26 Test: Semaphores Bogo Ops/s > Higher Is Better Xeon E3 v5: Unpatched .......... 5758937.58 |================================== Xeon E3 v5: Default Mitigation . 5630145.53 |================================= Xeon Gold: Unpatched ........... 753377.39 |==== Xeon Gold: Default Mitigation .. 809598.92 |===== Stress-NG 0.07.26 Test: Matrix Math Bogo Ops/s > Higher Is Better Xeon E3 v5: Unpatched .......... 19718.65 |===== Xeon E3 v5: Default Mitigation . 19642.42 |===== Xeon Gold: Unpatched ........... 137131.96 |=================================== Xeon Gold: Default Mitigation .. 137054.86 |=================================== Stress-NG 0.07.26 Test: Vector Math Bogo Ops/s > Higher Is Better Xeon E3 v5: Unpatched .......... 6282.18 |===== Xeon E3 v5: Default Mitigation . 6262.58 |===== Xeon Gold: Unpatched ........... 45265.08 |==================================== Xeon Gold: Default Mitigation .. 45197.99 |==================================== Stress-NG 0.07.26 Test: Context Switching Bogo Ops/s > Higher Is Better Xeon E3 v5: Unpatched .......... 1555995.61 |===== Xeon E3 v5: Default Mitigation . 1581770.74 |===== Xeon Gold: Unpatched ........... 10269509.61 |================================= Xeon Gold: Default Mitigation .. 10271390.88 |================================= Sysbench 2018-07-28 Test: Memory Events Per Second > Higher Is Better Xeon E3 v5: Unpatched .......... 10023207.45 |================================= Xeon E3 v5: Default Mitigation . 9981356.22 |================================= Xeon Gold: Unpatched ........... 7329289.95 |======================== Xeon Gold: Default Mitigation .. 7259294.75 |======================== Sysbench 2018-07-28 Test: CPU Events Per Second > Higher Is Better Xeon E3 v5: Unpatched .......... 5060.98 |===== Xeon E3 v5: Default Mitigation . 5052.15 |===== Xeon Gold: Unpatched ........... 36687.47 |==================================== Xeon Gold: Default Mitigation .. 36015.01 |=================================== Apache Benchmark 2.4.29 Static Web Page Serving Requests Per Second > Higher Is Better Xeon E3 v5: Unpatched .......... 34925.29 |==================================== Xeon E3 v5: Default Mitigation . 33253.94 |================================== Xeon Gold: Unpatched ........... 24639.49 |========================= Xeon Gold: Default Mitigation .. 24557.63 |========================= Git Time To Complete Common Git Commands Seconds < Lower Is Better Xeon E3 v5: Unpatched .......... 5.78 |================================= Xeon E3 v5: Default Mitigation . 5.76 |================================ Xeon Gold: Unpatched ........... 7.10 |======================================== Xeon Gold: Default Mitigation .. 7.06 |========================================