Tiobench and tiotest (https://github.com/mkuoppal/tiobench)

Threaded I/O bench for Linux (or any *nix system with POSIX threads support library) Author can be reached at: miku at iki.fi

Copyright (C) 1999-2014 Mika Kuoppala

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Installation:

compile by typing 'make'
after compilation './tiotest -h' should give you list of options
for backend io tester. 

'./tiobench.pl --help' will give you more nicer output
and more friendly user interface

tiobench.pl is frontend to tiotest to run predefined or 
configurable test suites

Credits:

James Manning <jmm at users.sf.net> wrote tiobench.pl
and also provided several fixes and improvements to 
other parts of the tiobench project as a whole. He also has
relentlessly fixed typos and Mika's misspellings 
everywhere.

Jakob Østergaard <jakob at ostenfeld.dk> proposed fsync
fix, and option for sequential writing to prevent
file fragmentation.

Sami Korhonen <sjkorhon at cc.hut.fi> noticed
thread_attr not initialized bug.

Numerous other contributions from fearless benchmarkers.