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lsof VS perf

Compare lsof VS perf and see what are their differences

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Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

lsof logo lsof

Lsof lists open files for running UNIX processes. It is a

perf logo perf

Perf is a simple app monitoring solution paired with meaningful alerts.
  • lsof Landing page
    Landing page //
    2019-09-16
  • perf Landing page
    Landing page //
    2023-04-12

lsof features and specs

No features have been listed yet.

perf features and specs

  • Comprehensive Performance Analysis
    Perf is a powerful tool that allows for detailed analysis of CPU performance, helping to identify bottlenecks and optimize code efficiently.
  • Wide Range of Features
    It provides features like tracing, profiling and performance monitoring, offering a versatile toolkit for developers and system administrators.
  • Kernel Support
    Being integrated into the Linux kernel means that perf has native support and access to a wide array of low-level hardware counters and events.
  • Flexible Configuration
    Perf supports a wide array of event configurations, allowing users to tailor their profiling to their specific performance analysis needs.
  • Open Source and Community-Driven
    As an open-source tool, perf benefits from community contributions and frequent updates, keeping it reliable and up-to-date with current technologies.

Possible disadvantages of perf

  • Complexity
    Perf can be complex to use for beginners, requiring a steep learning curve to effectively utilize all of its features and interpret the results.
  • Limited to Linux
    Perf is designed for the Linux operating system, limiting its use and accessibility for developers working in other environments like Windows or macOS.
  • Overhead Concerns
    While generally efficient, perf can introduce some measurement overhead, which might impact the performance of the system being analyzed.
  • Sparse Documentation
    Although improving, the documentation for perf can be sparse or fragmented, making it harder for new users to understand how to leverage all of its capabilities effectively.
  • Complex Output
    The output generated by perf can be quite detailed and complex, necessitating additional tools or scripts to parse and visualize the data effectively.

Analysis of lsof

Overall verdict

  • lsof (List Open Files) is a mature, battle-tested Unix/Linux utility that reliably reveals which files, sockets, and resources are opened by processes, making it an indispensable diagnostic tool for system administrators and developers.

Why this product is good

  • Provides comprehensive visibility into open files, network sockets, pipes, and devices tied to running processes
  • Extremely useful for troubleshooting 'device busy' errors, port conflicts, and locating processes holding onto deleted files
  • Highly portable across many Unix-like systems including FreeBSD, Linux, macOS, and Solaris
  • Long history of stable, well-maintained releases with extensive documentation and community support
  • Powerful filtering options let you query by user, process, port, file, or network connection

Recommended for

  • System administrators diagnosing resource and file-locking issues
  • Developers debugging network connections and socket usage
  • Security professionals investigating suspicious process activity and open network ports
  • Anyone needing to identify which process is using a specific file, directory, or port before unmounting or killing

lsof videos

+ Add

8 Basic lsof Commands Every Sysadmin Needs to Know

More videos:

  • Review - HakTip - Network monitoring in Linux with lsof

perf videos

+ Add

Conan Gives Staff Performance Reviews - CONAN on TBS

More videos:

  • Review - Perf Review
  • Tutorial - THE BALM AUTOBALM PIC PERF EYESHADOW PALETTE TUTORIAL, SWATCHES & REVIEW

Category Popularity

0-100% (relative to lsof and perf)

lsof

perf

Performance Monitoring
100 100%
Performance Monitoring
0% 0
Monitoring Tools
35 35%
Monitoring Tools
65% 65
Developer Tools
0 0%
Developer Tools
100% 100
Command Line Tools
100 100%
Command Line Tools
0% 0

User comments

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What are some alternatives?

When comparing lsof and perf, you can also consider the following products

htop - htop - an interactive process viewer for Unix. This is htop, an interactive process viewer for Unix systems. It is a text-mode application (for console or X terminals) and requires ncurses. Latest release: htop 2.

DTrace - DTrace is a performance analysis and troubleshooting tool for Solaris, Mac OS X and FreeBSD.

Sysdig - Sysdig is an open source, system-level exploration that capture system state and activity from a running Linux instance, then save, filter and analyze.

strace - Trace system calls and signals. A diagnostic, debugging and instructional userspace utility.

vtop - vtop is a graphical command-line tool that uses unicode braille to chart CPU and memory usage.

ftrace - A function tracer for the Linux kernel.

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