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	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
		
			
				
	
	
		
			17 lines
		
	
	
		
			313 B
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			17 lines
		
	
	
		
			313 B
		
	
	
	
		
			Go
		
	
	
	
	
	
| // Copyright (c) Tailscale Inc & AUTHORS
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| // SPDX-License-Identifier: BSD-3-Clause
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| 
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| //go:build freebsd || openbsd || dragonfly || netbsd
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| 
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| package sysresources
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| 
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| import "golang.org/x/sys/unix"
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| 
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| func totalMemoryImpl() uint64 {
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| 	val, err := unix.SysctlUint64("hw.physmem")
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| 	if err != nil {
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| 		return 0
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| 	}
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| 	return val
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| }
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