does TimeMachine Throttle the Network bandwidth?

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does TimeMachine Throttle the Network bandwidth?

I am using a QNAP NAS for my TimeMachine backup and am connected to it using a ThunderBolt. I know that the TB can handle up to 120MB/s throughput on a persistent basis. the TB has an IP address and I believe the MacBook is treating it as aNIC. when the backup starts, I can barely get 400KB/s of throughput from the TimeMachine. It is as if the TM is throttling the ThunderBolt (as it sees it as a NIC Card) and does not want to saturate it.

Do we know if TM throttles the NIC card and if so, is there a way to overwrite it? thanks

MacBook Pro 15”, macOS 10.14

Posted on Mar 19, 2019 5:16 PM

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Answer 1

Mar 19, 2019 7:06 PM in response to knight2f6

Time machine runs at low priority in the background so that you can continue to do your important work in the foreground. Everything about Time machine backup is to NOT punish system performance.

If you are sitting there with a stopwatch, doing nothing but Backups, then Time Machine is not the backup solution for you.

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Answer 2

knight2f6 Author

Level 1

8 points

Mar 19, 2019 8:11 PM in response to Grant Bennet-Alder

Agreed, but TM is saying that I have 24G to back up (and no, it is not my initial backup) and at the rate of 1GB per day, which is what I am getting so far, it means I have to maintain my laptop connection for 24 straight days before it finishes its backup. I am thinking there is something wrong with that logic.

Unless, I can somehow suspend the backup and disconnect the TM and comeback and have it restart from where it left. I don't believe TM is designed to do that, but maybe I am missing it.

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Answer 3

Mar 20, 2019 4:56 AM in response to knight2f6

and at the rate of 1GB per day,

That is not slow, that is broken.

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does TimeMachine Throttle the Network bandwidth?

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