Single File Tranfer Speed
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- 500 Command not understood
- Posts: 3
- Joined: 2022-09-28 14:59
- First name: Jordan
- Last name: Diefenbach
Single File Tranfer Speed
I've been using FileZilla for a while now, and recently had my internet connection switched to Gigabit speeds. I can get well over gigabit download speeds with my 2.5Gbe nic (1220Mbps) on an Ookla speed test, this is because of overprovisioning. Previously I had 500Mbps. When transferring a single file with FileZilla I get around 300-400 Mbps download. When I switched to my gigabit connection I noticed that the download speed was the same for single files. If I were to transfer 10 files simultaneously I get around 1000+ Mbps. Why is this? Does this have to do with the limitations of the FTP transfer protocol?
Re: Single File Tranfer Speed
FTP uses TCP, which is quite sensitive to latency and packet loss.
What is your latency if you ping the server, preferably during an active transfer?
What is your latency if you ping the server, preferably during an active transfer?
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- 500 Command not understood
- Posts: 3
- Joined: 2022-09-28 14:59
- First name: Jordan
- Last name: Diefenbach
Re: Single File Tranfer Speed
The server I connect to is overseas, so I get about 130-140ms ping.
Re: Single File Tranfer Speed
Overseas transfers are always problematic. Add even a tiny amount of packet loss at such high latency and speeds plummet.
One thing you could try is increasing the advertised receive window. Search for Socket recv buffer size (v2) in filezilla.xml and increase it to match your bandwidth-delay product (BDP). Note that in case of uploads, only the server's receive window matters.
One thing you could try is increasing the advertised receive window. Search for Socket recv buffer size (v2) in filezilla.xml and increase it to match your bandwidth-delay product (BDP). Note that in case of uploads, only the server's receive window matters.
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- 500 Command not understood
- Posts: 3
- Joined: 2022-09-28 14:59
- First name: Jordan
- Last name: Diefenbach
Re: Single File Tranfer Speed
Where would I find filezilla.xml? I don't see it in the FileZilla Windows client directory anywhere.botg wrote: ↑2022-10-03 09:10Overseas transfers are always problematic. Add even a tiny amount of packet loss at such high latency and speeds plummet.
One thing you could try is increasing the advertised receive window. Search for Socket recv buffer size (v2) in filezilla.xml and increase it to match your bandwidth-delay product (BDP). Note that in case of uploads, only the server's receive window matters.
Re: Single File Tranfer Speed
Saving configuration files into the same directory as the executables is a practice that has been dropped since at least Vista's arrival. Configuration files are now stored in %APPDATA%, %LOCALAPPDATA% and %ALLUSERSPROFILE%.
FileZilla's config is in "%APPDATA%\FileZilla".
FileZilla's config is in "%APPDATA%\FileZilla".
No support requests over PM! You will NOT get any reply!!!
FTP connection problems? Please read Network Configuration.
FileZilla connection test: https://filezilla-project.org/conntest.php
FileZilla Pro support: https://customerforum.fileZilla-project.org
FTP connection problems? Please read Network Configuration.
FileZilla connection test: https://filezilla-project.org/conntest.php
FileZilla Pro support: https://customerforum.fileZilla-project.org
Re: Single File Tranfer Speed
Did this solution work for you and increase your single file transfer speed? I'm running into a similar.
jordiefenbach wrote: ↑2022-10-05 16:50Where would I find filezilla.xml? I don't see it in the FileZilla Windows client directory anywhere.botg wrote: ↑2022-10-03 09:10Overseas transfers are always problematic. Add even a tiny amount of packet loss at such high latency and speeds plummet.
One thing you could try is increasing the advertised receive window. Search for Socket recv buffer size (v2) in filezilla.xml and increase it to match your bandwidth-delay product (BDP). Note that in case of uploads, only the server's receive window matters.