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Describe the Linux cache-clearing example accurately

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David Peter committed 2026-10-02 11:29:16 +02:00
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@@ -56,8 +56,8 @@ hyperfine --warmup 3 'grep -R TODO *'
``` ```
Conversely, if you want to run the benchmark for a cold cache, you can use the `-p`/`--prepare` Conversely, if you want to run the benchmark for a cold cache, you can use the `-p`/`--prepare`
option to run a special command before *each* timing run. For example, to clear harddisk caches option to run a special command before *each* timing run. For example, to clear Linux filesystem caches,
on Linux, you can run you can run
```sh ```sh
sync; echo 3 | sudo tee /proc/sys/vm/drop_caches sync; echo 3 | sudo tee /proc/sys/vm/drop_caches
``` ```