Software Alternatives & Startups

lsof VS strace

Compare lsof VS strace and see what are their differences

lsof

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

Rating
0 reviews
strace

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

Rating
0 reviews
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Command Line Tools popularity
100% vs 0%
alternatives listed
22 vs 43

Base details

Website, pricing, platforms and company facts side by side.

l
lsof
strace
Website people.freebsd.org sourceforge.net
Listed in

Features and specs

What each product offers, as listed by its team.

l
lsof 0 features
strace 5 features

No features have been listed yet.

  • Comprehensive System Call Tracing
    strace provides detailed insights into all system calls made by a process, which aids in understanding application behavior, debugging, and identifying performance bottlenecks.
  • Ease of Use
    With a simple command-line interface, strace can be quickly employed to start tracing processes without requiring extensive setup or configuration, making it accessible to a wide range of users.
  • Real-Time Monitoring
    strace allows for real-time monitoring of processes, enabling immediate feedback and rapid problem diagnosis during development and testing.
  • Broad Platform Support
    strace is available on numerous Unix-like operating systems, offering consistent functionality across different environments, which is beneficial for cross-platform development.
  • Versatile Output Options
    strace provides various output options, such as filtering specific system calls and summarizing I/O data, which lets users tailor the level of detail according to their needs.

Possible disadvantages

  • Performance Overhead
    strace introduces performance overhead to the traced process, which can affect the application's real-time behavior and lead to inaccurate performance assessment in some scenarios.
  • High Output Volume
    For complex applications, strace can generate a large volume of output, making it challenging to analyze and requiring additional post-processing to extract meaningful insights.
  • Limited High-Level Insights
    While strace excels at monitoring system calls, it does not provide high-level insights into application logic or algorithms, which can limit its utility for certain types of analysis.
  • Security Concerns
    Running strace on a production system may expose sensitive information about application workings and could be misused if not handled with appropriate access controls.
  • Steep Learning Curve for Beginners
    Understanding the vast array of system calls and their implications can be complex for beginners, requiring time to learn and interpret effectively.

Analysis

An editorial look at what each product does well and who it suits.

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lsof
strace

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

No analysis of strace yet.

Videos

Walkthroughs and reviews on video.

l
lsof 2 videos + Add
strace 3 videos + Add

8 Basic lsof Commands Every Sysadmin Needs to Know

More videos

  • - HakTip - Network monitoring in Linux with lsof

SADEL VELO FLUSH & SADEL STRACE l Unboxing dan Review Sadel Manja.. 😊

More videos

  • - How to Spy on Running Programs (strace, ltrace)
  • - Strace: Monitoring The Kernel-User-Space Conversation - Michael Kerrisk

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
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lsof
strace
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
IDE
100% 100%

User comments

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Alternatives to lsof and strace

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