Remote sync slow

coopered

Member
Dec 8, 2021
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Hello
I have setup remote sync with another PBS located on another continent that has a 1Gbps connection. Considering the distance we have a ping around 130ms.

Using iperf a fiber 1Gbps up/down connection only yields 168 Mbits/sec.
And on a fiber 100Mbits up/down connection on different internet provider yields 16.8 Mbits/sec.

proxmox-backup-client benchmark also results in TLS (maximal backup upload speed) of 2.17 MB/s for the 100Mbit connection and 20.35 MB/s for the 1Gbps connection.

Any tips to improve this?
Thanks
 
Hello
I have setup remote sync with another PBS located on another continent that has a 1Gbps connection. Considering the distance we have a ping around 130ms.

Using iperf a fiber 1Gbps up/down connection only yields 168 Mbits/sec.
And on a fiber 100Mbits up/down connection on different internet provider yields 16.8 Mbits/sec.

proxmox-backup-client benchmark also results in TLS (maximal backup upload speed) of 2.17 MB/s for the 100Mbit connection and 20.35 MB/s for the 1Gbps connection.

Any tips to improve this?
Thanks
Update:
I created 6 different sync jobs and now I'm able to use my full bandwidth if there is no other solution.
 
that is a general problem with tcp connections over 'high latency' links (see your iperf result)

Using iperf a fiber 1Gbps up/down connection only yields 168 Mbits/sec.
And on a fiber 100Mbits up/down connection on different internet provider yields 16.8 Mbits/sec.

proxmox-backup-client benchmark also results in TLS (maximal backup upload speed) of 2.17 MB/s for the 100Mbit connection and 20.35 MB/s for the 1Gbps connection.
2MiB/s ~ 16MBit/s and 20MiB/s ~ 160MBit/s so that seems to be consistent