- 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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IOzone Filesystem Benchmark 3.282 
