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42 lines
1.3 KiB
Markdown
42 lines
1.3 KiB
Markdown
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# memory
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Package `memory` provides two methods reporting total physical system memory
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accessible to the kernel, and free memory available to the running application.
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This package has no external dependency besides the standard library and default operating system tools.
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Documentation:
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[](https://godoc.org/github.com/pbnjay/memory)
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This is useful for dynamic code to minimize thrashing and other contention, similar to the stdlib `runtime.NumCPU`
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See some history of the proposal at https://github.com/golang/go/issues/21816
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## Example
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```go
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fmt.Printf("Total system memory: %d\n", memory.TotalMemory())
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fmt.Printf("Free memory: %d\n", memory.FreeMemory())
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```
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## Testing
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Tested/working on:
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- macOS 10.12.6 (16G29), 10.15.7 (19H2)
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- Windows 10 1511 (10586.1045)
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- Linux RHEL (3.10.0-327.3.1.el7.x86_64)
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- Raspberry Pi 3 (ARMv8) on Raspbian, ODROID-C1+ (ARMv7) on Ubuntu, C.H.I.P
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(ARMv7).
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- Amazon Linux 2 aarch64 (m6a.large, 4.14.203-156.332.amzn2.aarch64)
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Tested on virtual machines:
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- Windows 7 SP1 386
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- Debian stretch 386
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- NetBSD 7.1 amd64 + 386
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- OpenBSD 6.1 amd64 + 386
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- FreeBSD 11.1 amd64 + 386
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- DragonFly BSD 4.8.1 amd64
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If you have access to untested systems please test and report success/bugs.
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