使用IOzone测试磁盘读写性能
使用IOzone测试磁盘读写性能
1.1 什么是 IOzone
IOzone是一个文件系统测试工具，可以用来测试磁盘IO的读写性能，可以在各种操作系统上面使用，我们可以在下面网站下载这个工具 http://www.iozone.org/
1.2 IOzone 安装
在上面网站上下载对应的安装包
i386安装使用
rpm -ivh iozone-3-331.i386.rpm
command :/opt/iozone/bin/iozone -i 0 -i 1 -r 4096 -s 1G -Recb log.xls -t 2 -C |tee iozone.log
x86_64(RHEL4)安装使用
rpm -ivh iozone-3.283-1.el4.rf.x86_64.rpm
command : /usr/bin/iozone -i 0 -i 1 -r 4096 -s 1G -Recb log.xls -t 2 -C |tee iozone.log
x86_64(RHEL5)安装使用
rpm -ivh iozone-3.315-1.el5.rf.x86_64.rpm
command :/usr/bin/iozone -i 0 -i 1 -r 4096 -s 1G -Recb log.xls -t 2 -C |tee iozone.log
1.3 使用IOzone测试IO性能
下面为一个测试例子，命令详细信息见官方文档说明
#/usr/bin/iozone -i 0 -i 1 -r 4096 -s 1G -Recb log.xls -t 2 -C |tee iozone.log
#vi iozone.log
You can find the test result as following contents
Iozone: Performance Test of File I/O
Version $Revision: 3.331 $
Compiled for 32 bit mode.
Build: linux
Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
Al Slater, Scott Rhine, Mike Wisner, Ken Goss
Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
Fabrice Bacchella.
Run began: Tue May 4 15:47:41 2010
Record Size 4096 KB
File size set to 1048576 KB
Excel chart generation enabled
Include fsync in write timing
Include close in write timing
Command line used: /opt/iozone/bin/iozone -i 0 -i 1 -r 4096 -s 1G -Recb log.xls -t 2 -C
Output is in Kbytes/sec
Time Resolution = 0.000001 seconds.
Processor cache size set to 1024 Kbytes.
Processor cache line size set to 32 bytes.
File stride size set to 17 * record size.
Throughput test with 2 processes
Each process writes a 1048576 Kbyte file in 4096 Kbyte records
Children see throughput for 2 initial writers = 123255.69 KB/sec
Parent sees throughput for 2 initial writers = 117519.99 KB/sec
Min throughput per process = 59093.47 KB/sec
Max throughput per process = 64162.22 KB/sec
Avg throughput per process = 61627.84 KB/sec
Min xfer = 970752.00 KB
Child[0] xfer count = 970752.00 KB, Throughput = 59093.47 KB/sec
Child[1] xfer count = 1048576.00 KB, Throughput = 64162.22 KB/sec
Children see throughput for 2 rewriters = 114641.95 KB/sec
Parent sees throughput for 2 rewriters = 114251.79 KB/sec
Min throughput per process = 57138.49 KB/sec
Max throughput per process = 57503.46 KB/sec
Avg throughput per process = 57320.98 KB/sec
Min xfer = 1048576.00 KB
Child[0] xfer count = 1048576.00 KB, Throughput = 57503.46 KB/sec
Child[1] xfer count = 1048576.00 KB, Throughput = 57138.49 KB/sec
Children see throughput for 2 readers = 1353629.25 KB/sec
Parent sees throughput for 2 readers = 1243357.66 KB/sec
Min throughput per process = 592218.50 KB/sec
Max throughput per process = 761410.75 KB/sec
Avg throughput per process = 676814.62 KB/sec
Min xfer = 950272.00 KB
Child[0] xfer count = 950272.00 KB, Throughput = 592218.50 KB/sec
Child[1] xfer count = 1048576.00 KB, Throughput = 761410.75 KB/sec
Children see throughput for 2 re-readers = 1987734.69 KB/sec
Parent sees throughput for 2 re-readers = 1935438.66 KB/sec
Min throughput per process = 857971.81 KB/sec
Max throughput per process = 1129762.88 KB/sec
Avg throughput per process = 993867.34 KB/sec
Min xfer = 831488.00 KB
Child[0] xfer count = 831488.00 KB, Throughput = 857971.81 KB/sec
Child[1] xfer count = 1048576.00 KB, Throughput = 1129762.88 KB/sec
"Throughput report Y-axis is type of test X-axis is number of processes"
"Record size = 4096 Kbytes "
"Output is in Kbytes/sec"
" Initial write " 123255.69
" Rewrite " 114641.95
" Read " 1353629.25
" Re-read" 1987734.69
来自 “ ITPUB博客 ” ，链接：http://blog.itpub.net/21605631/viewspace-715298/，如需转载，请注明出处，否则将追究法律责任。
转载于:http://blog.itpub.net/21605631/viewspace-715298/