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The AMD Optimizing C/C++ Compiler (AOCC) is an optimizing C/C++ and Fortran compiler suite from AMD targeting 32-bit and 64-bit Linux platforms. [1] [2] It is a proprietary fork of LLVM + Clang with various additional patches to improve performance for AMD's Zen microarchitecture in Epyc, and Ryzen microprocessors.
Typically in server platforms, CPUs are the PECI slaves and Platform Controller Hub (PCH) is the PECI master, meanwhile in client segment, CPU is usually the PECI slave and EC/BMC is the PECI master. PECI was introduced in 2006 with the Intel Core 2 Duo microprocessors. Support for PECI was added to the Linux kernel version 5.18 in 2022. [1]
Introduced in June 2017, they are specifically targeted for the server and embedded system markets. [1] Epyc processors share the same microarchitecture as their regular desktop-grade counterparts, but have enterprise-grade features such as higher core counts, more PCI Express lanes, support for larger amounts of RAM, and larger cache memory.
Arm MAP, a performance profiler supporting Linux platforms.; AppDynamics, an application performance management solution [buzzword] for C/C++ applications via SDK.; AQtime Pro, a performance profiler and memory allocation debugger that can be integrated into Microsoft Visual Studio, and Embarcadero RAD Studio, or can run as a stand-alone application.
HyperFlash – memory modules on motherboard with ReadyBoost; ... Ryzen 3 2200U: Jan 8, 2018 2.5 3.4 1100 422.4 Ryzen 3 3200U: Jan 6, 2019 2.6 3.5 1200 460.8
Underclocking can also be performed on graphics card processor's GPUs, usually with the aim of reducing heat output. For instance, it is possible to set a GPU to run at lower clock rates when performing everyday tasks (e.g. internet browsing and word processing), thus allowing the card to operate at lower temperature and thus lower, quieter fan speeds.
Computer fans are widely used along with heatsink fans to reduce temperature by actively exhausting hot air. There are also other cooling techniques, such as liquid cooling. All modern day processors are designed to cut out or reduce their voltage or clock speed if the internal temperature of the processor exceeds a specified limit.
Prefetch data to all levels of the cache hierarchy. [b] PREFETCHT1 m8: 0F 18 /2: Prefetch data to all levels of the cache hierarchy except L1 cache. [b] PREFETCHT2 m8: 0F 18 /3: Prefetch data to all levels of the cache hierarchy except L1 and L2 caches. [b] SFENCE: NP 0F AE F8+x [c] Store Fence. [d] SSE2 (non-SIMD) LFENCE: NP 0F AE E8+x [c]