https://github.com/fanyang89/slow-mmap

https://github.com/fanyang89/slow-mmap

Last synced: 12 days ago
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• Host: GitHub
• URL: https://github.com/fanyang89/slow-mmap
• Owner: fanyang89
• Created: 2024-08-02T05:04:09.000Z (4 months ago)
• Default Branch: main
• Last Pushed: 2024-08-02T08:54:20.000Z (4 months ago)
• Last Synced: 2024-08-02T10:27:34.809Z (4 months ago)
• Language: Rust
• Size: 6.84 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# POC for slow [mmap(2)][1]

## Environment setup

- 1c4g virtual machine

- Linux 3.10.0-957.el7.x86_64

## Expected behavior

Memory allocation delayed.

## Real world behavior

```

2024-08-02T16:44:33.884200455+08:00  INFO poc: mmap(2) elapsed: 552.019123ms

2024-08-02T16:44:34.906196913+08:00  INFO poc: mmap(2) elapsed: 1.001015008s

2024-08-02T16:44:35.467195248+08:00  INFO poc: mmap(2) elapsed: 550.014566ms

2024-08-02T16:44:36.026197497+08:00  INFO poc: mmap(2) elapsed: 548.01508ms

2024-08-02T16:44:37.118197043+08:00  INFO poc: mmap(2) elapsed: 540.016055ms

```

[1]: https://man7.org/linux/man-pages/man2/mmap.2.html