Can I temporarily disable garbage collection in order to use

Question

Can I temporarily disable garbage collection in order to use

memory addresses as keys in a hash map while marshaling a cyclic data structure? without disabling GC, it might move data around in memory, changing the addresses.

0

05.10.2024

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So Fucking Bloodied Автор вопроса

Юра Чайковський
I think we have non-moving GC, GO runtime moves (c...

apparently Go's GC as it exists today does not move values on the heap around, but this behavior is not guaranteed and could change in the future.

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1 месяц назад

Roman Sharkov

No. Why would you want to do that?

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1 месяц назад

So Fucking Bloodied Автор вопроса

Roman Sharkov
No. Why would you want to do that?

so I can detect cycles in cyclic data structures for marshaling

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1 месяц назад

Roman Sharkov

So Fucking Bloodied
so I can detect cycles in cyclic data structures f...

Don't use raw pointer. Don't use unsafe pointer. You'll only make your life difficult for no reason. Just use pointers

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1 месяц назад

Roman Sharkov

If by memory addresses you mean normal Go pointer then you're fine and you don't habe to care about GC

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1 месяц назад

Юра Чайковський · Accepted Answer

Юра Чайковський

I think we have non-moving GC, GO runtime moves (copying) stacks of goroutines, and yes, you can off GC by env var GOGC=off or by func SetGCPercent (https://pkg.go.dev/runtime/debug#SetGCPercent)

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1 месяц назад

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