IOzone IOzone is a filesystem benchmark tool
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measure filesystem benchmark filesystem benchmark measure file operation filesystem analysis

IOzone Description

IOzone is a filesystem benchmark tool IOzone is a filesystem benchmark tool. The benchmark generates and measures a variety of file operations. Iozone has been ported to many machines and runs under many operating systems.Iozone is useful for performing a broad filesystem analysis of a vendor's computer platform. The benchmark tests file I/O performance for the following operations: Read, write, re-read, re-write, read backwards, read strided, fread, fwrite, random read, pread ,mmap, aio_read, aio_write.Here are some key features of "IOzone":· ANSII C source· POSIX async I/O· Mmap() file I/O· Normal file I/O· Single stream measurement· Multiple stream measurement· Distributed fileserver measurements (Cluster)· POSIX pthreads· Multi-process measurement· Excel importable output for graph generation· Latency plots· 64bit compatible source· Large file compatible· Stonewalling in throughput tests to eliminate straggler effects· Processor cache size configurable· Selectable measurements with fsync, O_SYNC· Builds for: AIX, BSDI, HP-UX, IRIX, FreeBSD, Linux, OpenBSD, NetBSD, OSFV3, OSFV4, OSFV5, SCO OpenServer, Solaris, MAC OS X, Windows (95/98/Me/NT/2K/XP)

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