Benchmark Test: bonnie

TEST NAME

bonnie - file system and disk I/O benchmark

SYNOPSIS

./bonnie.sh [ -d scratch_directory ] [ -i test_iterations ] [ -m machine_name ] [ -s file_size ]

DESCRIPTION

bonnie is a file system and disk I/O benchmark and measurement tool that analyzes file system performance and bottlenecks. It exercises sequential input and output (per char, per block, and per rewrite) and performs random seeks.

The script bonnie.sh runs the bonnie benchmark with varying numbers of iterations (repetitions) and file sizes, and summarizes the results. Average values are calculated for all executed iterations.

bonnie can also be used as a system stress test. When used as a stress test, 100 to 500 iterations are necessary. File sizes can vary depending on available disk or RAID space. Verify that the required space is available in /export/home or the scratch directory before starting the benchmark (see the Storage Controller Certification Level 2 Test Plan for more information).

The test can be executed either as root or as a regular user. Note that a regular user account might experience permission problems when writing to or removing files from some directories.

OPTIONS

-d scratch_directory

Scratch directory. The default directory is /export/home/bonnie.tmp. If -d is set, bonnie writes files to the directory specified by scratch_directory instead of to the default directory.

-i test_iterations

Number of test iterations. The default number of iterations is 5.

-m machine_name

Machine name/label. The default machine name is output from uname -n.

-s file_size

File size. The default file size is 200 Mbytes.

SETUP

Copy the bonnie directory tree to /export/home or to another directory on your local system. If the /export/home/bonnie.tmp directory already exists, change its permissions to 777:

# chmod 777 /export/home/bonnie.tmp

Make sure /export/home or the scratch directory is located on the disk connected to the controller being tested.

OUTPUT

Test results are stored in /export/home/bonnie.tmp/bonnie.results by default or in scratch_directory/bonnie.results if -d scratch_directory is set.

-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec %CPU
Sun4/260   78   285 90.9   650 26.4   305 20.0   282 95.5   803 28.3  38.5 15.2
Mips M2k  180   387 44.0   442  6.1   360  5.4   416 48.1  1701 14.8  26.3  3.1
Sequent    95   140 97.8  1017 66.2   251 17.7   122 95.7   713 34.9  31.0 15.9
4M i386    25   130 90.5   199 26.1   179 46.1   121 93.5   400 59.7  10.5 23.8
NeXT      125   241 94.7   347 39.3   253 31.7   246 94.8   772 49.6  27.7 20.8
VAX 8650  200   208 89.0   232  8.3   143  7.4   197 65.0   373  8.6  17.3  4.6

DURATION

The duration of this test depends on the storage type and the parameters you specify. For example, this test takes less than 4 minutes using the following parameters on an Ultra 320 SCSI disk:

# ./bonnie.sh -i 5 -s 200

POSSIBLE CONCURRENT TESTS

None

EXAMPLES

# ./bonnie.sh -i 100 &