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Instructions per second information


Computer processing efficiency, measured as the power needed per million instructions per second (watts per MIPS)

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. Many reported IPS values have represented "peak" execution rates on artificial instruction sequences with few branches and no cache contention, whereas realistic workloads typically lead to significantly lower IPS values. Memory hierarchy also greatly affects processor performance, an issue barely considered in IPS calculations. Because of these problems, synthetic benchmarks such as Dhrystone are now generally used to estimate computer performance in commonly used applications, and raw IPS has fallen into disuse.

The term is commonly used in association with a metric prefix (k, M, G, T, P, or E) to form kilo instructions per second (kIPS), mega instructions per second (MIPS), giga instructions per second (GIPS) and so on. Formerly TIPS was used occasionally for "thousand IPS".

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Instructions per second

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Instructions per second (IPS) is a measure of a computer's processor speed. For complex instruction set computers (CISCs), different instructions take...

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Instructions per cycle

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the number of instructions by the number of CPU clock cycles. The number of instructions per second and floating point operations per second for a processor...

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Cycles per instruction

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per instruction for a program or program fragment. It is the multiplicative inverse of instructions per cycle. The average of Cycles Per Instruction in...

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Cycle per second

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per day (cpd) and cycles per year (cpy). Cycles per instruction (CPI) Cycles per metre Heinrich Hertz Instructions per cycle (IPC) Instructions per second...

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Performance per watt

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operations/second, then performance per watt can be written as operations/watt-second. Since a watt is one joule/second, then performance per watt can also...

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FLOPS

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For such cases, it is a more accurate measure than measuring instructions per second.[citation needed] Floating-point arithmetic is needed for very...

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Instruction pipelining

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using less energy per instruction. Out of order CPUs can usually do more instructions per second because they can do several instructions at once. In a pipelined...

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Strategic Computing Initiative

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according to Alex Roland and Philip Shiman, "would run ten billion instructions per second to see, hear, speak, and think like a human. The degree of integration...

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Supercomputer

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commonly measured in floating-point operations per second (FLOPS) instead of million instructions per second (MIPS). Since 2017, supercomputers have existed...

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IBM 709

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B instructions have, in sequence, a 12-bit instruction code (with the second and third bits set to 0 to distinguish them from type A instructions), a...

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I486

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41 million instructions per second Dhrystone MIPS and SPEC integer rating of 27.9. It is approximately twice as fast as the i386 or i286 per clock cycle...

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Reduced instruction set computer

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individual instructions are written in simpler code. The goal is to offset the need to process more instructions by increasing the speed of each instruction, in...

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Mainframe computer

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sometimes measured in millions of instructions per second (MIPS), although the definition depends on the instruction mix measured. Examples of integer...

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Computer architecture

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small instruction manual, which describes how the instructions are encoded. Also, it may define short (vaguely) mnemonic names for the instructions. The...

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List of computing and IT abbreviations

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without Interlocked Pipeline Stages MIPS—Million Instructions Per Second MISD—Multiple Instruction, Single Data MIS—Management Information Systems MIT—Massachusetts...

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Control unit

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using less energy per instruction. Out-of-order CPUs can usually do more instructions per second because they can do several instructions at once. Control...

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Clock rate

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so that they complete more instructions per clock cycle, thus achieving a lower CPI (cycles or clock cycles per instruction) count, although they may run...

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3M computer

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megapixel display with 1024×1024 1-bit pixels, and one million instructions per second (MIPS) of processing power. It was also often said that it should...

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BogoMips

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Linux kernel on comp.os.linux: [...] MIPS is short for Millions of Instructions Per Second. It is a measure for the computation speed of a processor. Like...

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Digital signal processor

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many as 8000 MIPS (millions of instructions per second), use VLIW (very long instruction word), perform eight operations per clock-cycle and are compatible...

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Computer performance by orders of magnitude

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This list compares various amounts of computing power in instructions per second organized by order of magnitude in FLOPS. Scientific E notation index:...

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Computer

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"jump" instructions (or branches). Furthermore, jump instructions may be made to happen conditionally so that different sequences of instructions may be...

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Intel 4040

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contained 3,000 transistors and could execute approximately 62,000 instructions per second. General performance, bus layout and arithmetic logic unit (ALU)...

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Freescale DragonBall

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speeds of up to 16.58 MHz and can run up to 2.7 MIPS (million instructions per second), for the base 68328 and DragonBall EZ (MC68EZ328) model. It was...

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CPU cache

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both executable instructions and data. A single TLB can be provided for access to both instructions and data, or a separate Instruction TLB (ITLB) and...

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