tailscale/util/sysresources/sysresources_test.go

// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause

package sysresources

import (
	"runtime"
	"testing"
)

func TestTotalMemory(t *testing.T) {
	switch runtime.GOOS {
	case "linux":
	case "freebsd", "openbsd", "dragonfly", "netbsd":
	case "darwin":
	default:
		t.Skipf("not supported on runtime.GOOS=%q yet", runtime.GOOS)
	}

	mem := TotalMemory()
	if mem == 0 {
		t.Fatal("wanted TotalMemory > 0")
	}
	t.Logf("total memory: %v bytes", mem)
}
util/sysresources, magicsock: scale DERP buffer based on system memory This adds the util/sysresources package, which currently only contains a function to return the total memory size of the current system. Then, we modify magicsock to scale the number of buffered DERP messages based on the system's available memory, ensuring that we never use a value lower than the previous constant of 32. Signed-off-by: Andrew Dunham <andrew@du.nham.ca> Change-Id: Ib763c877de4d0d4ee88869078e7d512f6a3a148d 2 years ago			`// Copyright (c) Tailscale Inc & AUTHORS`
			`// SPDX-License-Identifier: BSD-3-Clause`

			`package sysresources`

			`import (`
			`"runtime"`
			`"testing"`
			`)`

			`func TestTotalMemory(t *testing.T) {`
			`switch runtime.GOOS {`
			`case "linux":`
			`case "freebsd", "openbsd", "dragonfly", "netbsd":`
			`case "darwin":`
			`default:`
			`t.Skipf("not supported on runtime.GOOS=%q yet", runtime.GOOS)`
			`}`

			`mem := TotalMemory()`
			`if mem == 0 {`
			`t.Fatal("wanted TotalMemory > 0")`
			`}`
			`t.Logf("total memory: %v bytes", mem)`
			`}`