Linux command
blkparse 命令
文本
复制后可按需替换文件名、目录或参数。
常用示例
Parse and display blktrace output
blkparse [sda]
Parse multiple devices
blkparse [sda] [sdb]
Parse from stdin
blktrace -d [/dev/sda] -o - | blkparse -i -
Output to a file
blkparse [sda] -o [output.txt]
Show specific output fields
blkparse -f "%D %a %S %n\n" [sda]
Parse with quiet output
blkparse -q [sda]
说明
blkparse produces formatted output from event streams recorded by blktrace. It combines event streams from multiple CPUs and devices, converting machine-readable trace data into human-readable format. The tool is essential for analyzing block I/O patterns, debugging storage performance issues, and understanding how the Linux I/O scheduler processes requests.
参数
- -i _file_
- Input file (use "-" for stdin)
- -o _file_
- Output file (default: stdout)
- -d _dir_
- Input directory for trace files
- -f _format_
- Custom output format string
- -q
- Quiet mode; only print summary at end
- -s
- Show per-program statistics
- -t
- Track individual I/O completions
- -w _span_
- Time span to process (in seconds)
- -v
- More verbose output
FAQ
What is the blkparse command used for?
blkparse produces formatted output from event streams recorded by blktrace. It combines event streams from multiple CPUs and devices, converting machine-readable trace data into human-readable format. The tool is essential for analyzing block I/O patterns, debugging storage performance issues, and understanding how the Linux I/O scheduler processes requests.
How do I run a basic blkparse example?
Run `blkparse [sda]` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -i _file_ do in blkparse?
Input file (use "-" for stdin)