News

fio 2.0.7 x64 has been released.
Changes:

• Allow readwrite as an alias for rw in setting sequential read/write
• verify: verify bytes should not add to this_io_bytes
• stat: move final \n of terse output to the end
• Enhance the reaped status display
• HOWTO: update to note base of latencies in minimal/terse output
• Add indication of whether a job got killed
• Fix address truncation on Windows (crashing bug)
• Windows fixes:
  • Only return from fio_windowsaio_getevents if the minimum number of IOs has completed.
  • Add posix_fallocate implementation to avoid extending the file during the test.
• iolog: remove assert in io_u overlap
• group reporting: fix bad values of min/max
• Make fio include the git version in the version output

2012-04-04

A snapshot of fio after 2.0.6 has been released for x64 Windows.
Changes:

• Allow readwrite as an alias for rw in setting sequential read/write
• verify: verify bytes should not add to this_io_bytes
• stat: move final \n of terse output to the end
• Enhance the reaped status display
• HOWTO: update to note base of latencies in minimal/terse output
• Add indication of whether a job got killed
• Fix address truncation on Windows (crashing bug)
• Windows fixes:
  • Only return from fio_windowsaio_getevents if the minimum number of IOs has completed.
  • Add posix_fallocate implementation to avoid extending the file during the test.

2012-03-23

fio 2.0.6 has been released for x64 Windows.
Changes:

• Add buffer_compress_percentage
• server: fixup bug in sending jobs_eta command
• Avoid segfault if verify header appears longer than io_u
• Fix bug that causes early termination of fio with verify_backlog
• Add buffer_compress_chunk option
• Fix failure to verify in mixed read/write workload with backlog
• New offset_increment option
• Fix problem with iodepth_batch_complete=0 and accounting
• time_based: Avoid restarting main I/O loop
• Enable read/write sequential offset to be a non-multiple of the block size
• Added 99.95 and 99.99 default percentiles.
• Fix terse output with description set

2012-03-09

A updated snapshot of fio has been released.
Changes:

• Add buffer_compress_percentage
• Compression fixes
• server: fixup bug in sending jobs_eta command
• Avoid segfault if verify header appears longer than io_u
• Fix another verify segfault
• Fix bug that causes early termination of fio with verify_backlog
• Fix batch mismatch for verifies

2012-02-28

fio-2.0.5-x64 has been released.
Changes:

• Really fix IOPS logging

2012-02-24

fio-2.0.4-x64 has been released. Note that this is only available for 64-bit Windows (Windows 2003/XP and newer).
Changes since 2.0.1 include:

• fix early termination of runs caused by ramp_time > runtime
• implement zoned random I/O testing support
• Fix thread hang when using async engines (libaio,etc.) when too low of a iops rate...
• windowsaio: fix file offset bug
• Make random map allocation more resilient
• Optimize pattern filling by limiting small calls to memcpy
• Fail if we can't satisfy the minimum block size
• Enable completion latency stat collection on verify
• Fix bandwidth logging for mixed read/write workloads.
• Token-based flow control
• Move Windows port to MinGW
• Fix IOPS logging for mixed read/write workloads
• Use crc32c for the verify_header checksum
• Remove holes in verify_header structure
• client: exit if no jobs were sent and client is idle

Older versions

Older versions can be found by browsing the releases directory.

README - command-line parameters and how to build fio
HOWTO - understanding FIO configuration and output
REPORTING-BUGS - How to report bugs
COPYING - License