cat: overkilled fcntl() call with multiple input
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U - cat
- Dominant language
- Rust
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- Forks
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- Avg merge
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- Merged PRs (30d)
- 365
Description
$ strace -c -e fcntl cat /etc/*
% time seconds usecs/call calls errors syscall
------ ----------- ----------- --------- --------- ----------------
100.00 0.000194 2 83 fcntl
Contributor guide
First steps
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Research direction
Reproduce the reported strace -c -e fcntl cat /etc/* command and verify the excessive call count. No source file or test is named, so trace the cat command's implementation from its entry point; done means reducing unnecessary fcntl calls without changing its behavior and checking the syscall count again.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- cli, operating-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100