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Home System Utilities Benchmark Utilities IOzone 3.282

IOzone 3.282

Details
Size: 1.00 MB
License: Freeware
OS: Windows All/Unix
Publisher: Capps
Date added: 5/14/2008
Date updated: 5/14/2008
Total Downloads: 110
Downloads - Last Week: 7

Rating: (0 votes)
IOzone 3.282 Publisher's description

Iozone runs under many operating systems and has been ported to many machines.

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.

While computers are typically purchased with an application in mind it is also likely that over time the application mix will change. Many vendors have enhanced their operating systems to perform well for some frequently used applications.

Although this accelerates the I/O for those few applications it is also likely that the system may not perform well for other


applications that were not targeted by the operating system. An example of this type of

enhancement is: Database.

Many operating systems vendors have tested and tuned the filesystem so it works well with databases. While the database users are happy, the other users may not be so happy as the entire system may be giving all of the system resources to the database users at the expense of all other users.

As time rolls on the system administrator may decide that a few more office automation tasks could be shifted to this machine. The load may now shift from a random reader application (database) to a sequential reader.

The users may discover that the machine is very slow when running this new application and become dissatisfied with the decision to purchase this platform.

By using Iozone to get a broad filesystem performance coverage the buyer is much more likely to see any hot or cold spots and pick a platform and operating system that is more well balanced.

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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Antivirus information
Download3K has downloaded and tested IOzone on 10 Jun 2008 with some of Today's best antivirus engines and you can find below, for your convenience, the scan results:
Bitdefender: Clean
NOD 32: Clean
Kaspersky: Clean
Complete antivirus report
Antivirus Report

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