.TH STRESSAPPTEST 1 2009-10-20
.SH NAME
stressapptest \- stress test application for simulating high load situations
.SH SYNOPSIS
.B stressapptest
.RI [ options ]
.SH DESCRIPTION
This manual page documents briefly the
.B stressapptest
command.
.PP
\fBstressapptest\fP (unix name for Stressful Application Test) is a program that
tries to maximize randomized traffic to memory from processor and I/O, with the
intent of creating a realistic high load situation in order to test the existing
hardware devices in a computer.
.SH OPTIONS
This program supports the following options:

.TP
.B \-A
Run in degraded mode on incompatible systems.

.TP
.B \-C <threads>
Number of memory CPU stress threads to run.

.TP
.B \-d <device>
Add a direct write disk thread with block device (or file) 'device'.

.TP
.B \-f <filename>
Add a disk thread with tempfile 'filename'.

.TP
.B \-F
Don't result check each transaction.

.TP
.B \-i <threads>
Number of memory invert threads to run.

.TP
.B \-l <logfile>
Log output to file 'logfile'.

.TP
.B \-m <threads>
Number of memory copy threads to run.

.TP
.B \-M <mbytes>
Megabytes of RAM to test.

.TP
.B \-n <ipaddr>
Add a network thread connecting to system at 'ipaddr'.

.TP
.B \-p <pagesize>
Size in bytes of memory chunks.

.TP
.B \-s <seconds>
Number of seconds to run.

.TP
.B \-v <level>
Verbosity (0-20), default is 8.

.TP
.B \-W
Use more CPU-stressful memory copy.

.TP
.B \-\-blocks\-per\-segment <number>
Number of blocks to read/write per segment per iteration (\-d).

.TP
.B \-\-cache\-size <size>
Size of disk cache (\-d).

.TP
.B \-\-cc_inc_count <number>
Number of times to increment the cacheline's member.

.TP
.B \-\-cc_line_count <number>
Number of cache line sized datastructures to allocate for the cache coherency
threads to operate.

.TP
.B \-\-cc_line_size <number>
Size of cache line to use as the basis for cache coherency test data
structures.

.TP
.B \-\-cc_test
Do the cache coherency testing.

.TP
.B \-\-destructive
Write/wipe disk partition (\-d).

.TP
.B \-\-filesize <size>
Size of disk IO tempfiles.

.TP
.B \-\-findfiles
Find locations to do disk IO automatically.

.TP
.B \-\-force_errors
Inject false errors to test error handling.

.TP
.B \-\-force_errors_like_crazy
Inject a lot of false errors to test error handling.

.TP
.B \-\-listen
Run threads that listen for incoming net connections.

.TP
.B \-\-local_numa
Choose memory regions associated with each CPU to be tested by that CPU.

.TP
.B \-\-max_errors <number>
Exit early after finding specified number of errors.

.TP
.B \-\-monitor_mode
Only do ECC error polling, no stress load.

.TP
.B \-\-no_errors
Run without checking for ECC or other errors.

.TP
.B \-\-paddr_base <address>
Allocate memory starting from this address.

.TP
.B \-\-pause_delay <seconds>
Delay (in seconds) between power spikes.

.TP
.B \-\-pause_duration <seconds>
Duration (in seconds) of each pause.

.TP
.B \-\-random-threads <number>
Number of random threads for each disk write thread (\-d).

.TP
.B \-\-read-block-size <size>
Size of block for reading (\-d).

.TP
.B \-\-read-threshold <time>
Maximum time (in us) a block read should take (\-d).

.TP
.B \-\-remote_numa <time>
Choose memory regions not associated with each CPU to be tested by that CPU.

.TP
.B \-\-segment-size <size>
Size of segments to split disk into (\-d).

.TP
.B \-\-stop_on_errors
Stop after finding the first error.

.TP
.B \-\-write-block-size <size>
Size of block for writing (\-d). If not defined, the size of block for writing
will be defined as the size of block for reading.

.TP
.B \-\-write-threshold <time>
Maximum time (in us) a block write should take (\-d).

.SH SEE ALSO
.BR http://code.google.com/p/stressapptest/
.SH AUTHOR
stressapptest was written by Nick Sanders and Rapahel Menderico (Google Inc).
.PP
This manual page was written by Michael Prokop <mika@debian.org>
for the Debian project (and may be used by others).