用iozone测试linux文件系统
作者 佚名技术
来源 Linux系统
浏览
发布时间 2012-04-05
| # Lower limit on number of processes to run -L # Set processor cache line size to value (in bytes) -m Use multiple buffers -M Report uname -a output -n # Set minimum file size (in Kbytes) for auto mode (or #m or #g) -N Report results in microseconds per operation -o Writes are synch (O_SYNC) -O Give results in ops/sec. -p Purge on -P # Bind processes/threads to processors, starting with this cpu -q # Set maximum record size (in Kbytes) for auto mode (or #m or #g) -Q Create offset/latency files -r # record size in Kb or -r #k .. size in Kb or -r #m .. size in Mb or -r #g .. size in Gb -R Generate Excel report -s # file size in Kb or -s #k .. size in Kb or -s #m .. size in Mb or -s #g .. size in Gb -S # Set processor cache size to value (in Kbytes) -t # Number of threads or processes to use in throughput test -T Use POSIX pthreads for throughput tests -u # Upper limit on number of processes to run -U Mount point to remount between tests -v version information -V # Verify data pattern write/read -w Do not unlink temporary file -W Lock file when reading or writing -x Turn off stone-walling -X filename Write telemetry file. Contains lines with (offset reclen compute_time) in ascii -y # Set minimum record size (in Kbytes) for auto mode (or #m or #g) -Y filename Read telemetry file. Contains lines with (offset reclen compute_time) in ascii -z Used in conjunction with -a to test all possible record sizes -Z Enable mixing of mmap I/O and file I/O - E Use existing non-Iozone file for read-only testing - K Sony special. Manual control of test 8. - m Cluster_filename Enable Cluster testing - d File I/O diagnostic mode. (To troubleshoot a broken file I/O subsystem) - u Enable CPU utilization output (Experimental) - x # Multiplier to use for incrementing file and record sizes - p # Percentage of mix to be reads - r Enable O_RSYNC|O_SYNC for all testing. - t Enable network performance test. Requires - m - n No retests selected. - k Use constant aggregate data set size. - q Delay in seconds between tests. - l Enable record locking mode. - L Enable record locking mode, with shared file. - B Sequential mixed workload. - D Enable O_DSYNC mode. - A # Enable madvise. 0 = normal, 1=random, 2=sequential 3=dontneed, 4=willneed - N Do not truncate existing f |
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