Hi,
I've got a VM running Xubuntu 20.04 and I also have a cloud server with a full duplex 1GB network connection. My ISP connection is 600Mbps
When I download a file from the cloud server using Filezilla it never goes about 7.5 MB/s. If I increase the concurrent downloads I can have 4 or 5 files all coming down at 7.5 MB/s but never more.
If I open up a Terminal and use the OS sftp command to download, I see between 55 - 60 MB/s.
Any ideas why Filezilla is going so slow?
Thanks
Xubuntu - Filezilla much slower than cli sftp?
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Re: Xubuntu - Filezilla much slower than cli sftp?
Check your sysctl knobs, your memory limits are too small. The defaults for net.ipv4.tcp_mem and net.ipv4.tcp_rmem are not suitable for modern day networks. There's also an odd behavior in the kernel where a request for a large buffer actually decreases the window scale factor from the default.
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- 500 Command not understood
- Posts: 2
- Joined: 2020-05-17 13:50
- First name: Dan
- Last name: Mason
Re: Xubuntu - Filezilla much slower than cli sftp?
Thanks Botg, will check them out!botg wrote: ↑2020-05-18 08:24Check your sysctl knobs, your memory limits are too small. The defaults for net.ipv4.tcp_mem and net.ipv4.tcp_rmem are not suitable for modern day networks. There's also an odd behavior in the kernel where a request for a large buffer actually decreases the window scale factor from the default.