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https://github.com/RGBCube/serenity
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51 lines
1.1 KiB
Markdown
51 lines
1.1 KiB
Markdown
## Name
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allocate - allocate memory
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## Synopsis
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```**sh
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$ allocate [number [unit (B/KiB/MiB)]]
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```
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## Description
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`allocate` allocates a specific amount of virtual memory (specified in `number` and `unit`, by default 50 MiB), It also writes to each allocated page and then sleeps for 10 seconds. It is primarily used to test the kernel's memory management capabilities.
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## Arguments
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* `number`: A number of `units` to allocate; the default is **50**
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* `unit`: Data size unit, can be `B` (bytes), `KiB` (kibibytes) or `MiB` (mebibytes); the default is **MiB**
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## Examples
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```sh
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$ allocate 100 MiB
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allocating memory (104857600 bytes)...
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done in 13ms
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writing one byte to each page of allocated memory...
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step took 46ms (217.391304MiB/s)
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step took 32ms (312.500000MiB/s)
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step took 31ms (322.580645MiB/s)
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step took 55ms (181.818181MiB/s)
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step took 35ms (285.714285MiB/s)
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step took 40ms (250.000000MiB/s)
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step took 39ms (256.410256MiB/s)
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step took 52ms (192.307692MiB/s)
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step took 44ms (227.272727MiB/s)
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done in 426ms
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sleeping for ten seconds...
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0
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1
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9
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done.
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freeing memory...
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done in 119ms
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```
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