OS Performance

OS Performance - Architecture Determines Performance...

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Architecture Determines Performance Processor Instruction Set AMD, Intel, SPARC, Power Basic clock rate Multithreadedness # chips (sockets) per system # cores per chip # threads per core Cache architecture L1 (per core), L2 (per core or shared), L3 Memory Architecture Total DRAM, Memory speed, NUMA I/O and Network devices and configuration OS interaction with hardware Virtual Memory Paging, Swapping, Process Scheduling Exploitation of Parallelism
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“It's broke!” “It's slow!” “Can't find file, program, . ..” “Can't connect to . ..” “It won't boot!” “It's making weird noises!” “My mouse, keyboard, printer, … doesn't work!” “My cupholder won't extend!” “The electricity in my house just went out. ..now my computer doesn't work!” “I can't find the 'ANY' key!”
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Difficult to accurately characterize behaviour of any OS, especially when: Running on new family of CMT/CMP processors Multicore/Multithread: SPARC, AMD, Intel, Power*
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This note was uploaded on 11/01/2010 for the course INFS 515 taught by Professor Masiyowski,j during the Fall '08 term at George Mason.

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OS Performance - Architecture Determines Performance...

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