demo test test: Processor: Intel Core i5-4278U @ 3.10GHz (2 Cores / 4 Threads), Motherboard: INTEL CRESCENTBAY (5.6.5 BIOS), Chipset: Intel Haswell-ULT DRAM, Memory: 4096MB, Disk: Teclast 256GB SS, Graphics: Intel Iris 5100 2GB (1100MHz), Audio: Intel Haswell-ULT HD Audio, Monitor: Redmi 27 NF, Network: 2 x Intel I211 + Intel 7260 OS: Ubuntu 20.04, Kernel: 5.15.0-52-generic (x86_64), Desktop: GNOME Shell 3.36.9, Display Server: X Server 1.20.13, OpenGL: 4.5 Mesa 21.2.6, Vulkan: 1.2.182, Compiler: GCC 9.4.0, File-System: ext4, Screen Resolution: 1920x1080 Smallpt 1.0 Global Illumination Renderer; 128 Samples Seconds < Lower Is Better test . 103.08 |================================================================