JSON Baumgartner on Twitter: ""vmtouch" will allow you to cache a file or remove a file from OS page cache without having to globally clear the page cache. Extremely useful." / Twitter

If you are testing raw I/O using specific files and need to remove a specific file from OS page cache, "vmtouch" is an awesome utility. root@es3:/data/master/reddit# vmtouch -e authors.dat Files: 1 Directories: 0 Evicted Pages: 1015158 (3G) Elapsed: 0.2638 seconds

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JSON Baumgartner

@jasonbaumgartne

"vmtouch" will allow you to cache a file or remove a file from OS page cache without having to globally clear the page cache. Extremely useful.

5:42 PM · Jul 15, 2020Twitter Web App

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