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In computing, computer performance is the amount of useful work accomplished by a computer system. Outside of specific contexts, computer performance is estimated in terms of accuracy, efficiency and speed of executing computer program instructions. When it comes to high computer performance, one or more of the following factors might be involved:
CPU time (or process time) is the amount of time that a central processing unit (CPU) was used for processing instructions of a computer program or operating system. CPU time is measured in clock ticks or seconds. Sometimes it is useful to convert CPU time into a percentage of the CPU capacity, giving the CPU usage.
The Singularity Is Near – book by Raymond Kurzweil dealing with the progression and projections of development of computer capabilities, including beyond human levels of performance; TOP500 – list of the 500 most powerful (non-distributed) computer systems in the world
The SX-9 features the first CPU capable of a peak vector performance of 102.4 gigaFLOPS per single core. On February 4, 2008, the NSF and the University of Texas at Austin opened full scale research runs on an AMD , Sun supercomputer named Ranger, [ 44 ] the most powerful supercomputing system in the world for open science research, which ...
Instructions per second (IPS) is a measure of a computer's processor speed. For complex instruction set computers (CISCs), different instructions take different amounts of time, so the value measured depends on the instruction mix; even for comparing processors in the same family the IPS measurement can be problematic.
64 ~ 80 KiB per core 256 ~ 512 KiB per core 16 MiB Some Intel Core i9 (Extreme Edition) i9-7900X i9-7920X i9-7940X i9-7960X i9-7980XE Kaby Lake Cascade Lake: Q3 2017–present 2.90 GHz – 4.30 GHz LGA 2066: 14 nm 35 W – 165 W 8 - 18 (with hyperthreading) 8 GT/s 64 KiB per core 1 MiB per core 13.75 MiB – 24.75 MiB Yes Processor Series ...
Further, a "cumulative clock rate" measure is sometimes assumed by taking the total cores and multiplying by the total clock rate (e.g. a dual-core 2.8 GHz processor running at a cumulative 5.6 GHz). There are many other factors to consider when comparing the performance of CPUs, like the width of the CPU's data bus , the latency of the memory ...
In computer architecture, cycles per instruction (aka clock cycles per instruction, clocks per instruction, or CPI) is one aspect of a processor's performance: the average number of clock cycles per instruction for a program or program fragment. [1] It is the multiplicative inverse of instructions per cycle.