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Poor FTP Performance 7kbyte/s -> delayed Acknowledge

Posted: Tue Oct 19, 2010 1:27 am
by Rotesmofa
Hello dear Support,

i have an issue using AndFTP.

My downloadspeed maximum is 7kbyte/s i tried using an FTP connection to another device.
I had the same issue on my Windows XP Laptop, after turning delayed Acknowledge at the laptop off i had 300kbyte/s.

Do you know how to solve that issue on the Android side?

I used a Galaxy S with JPK Android 2.2

Best regards,
Rotesmofa

Re: Poor FTP Performance 7kbyte/s -> delayed Acknowledge

Posted: Tue Oct 19, 2010 9:02 pm
by support
No, not really. What do you call "delayed Acknowledge" ?

Re: Poor FTP Performance 7kbyte/s -> delayed Acknowledge

Posted: Wed Oct 20, 2010 2:50 am
by Rotesmofa
So i found out that the "no_delay" settings for the socket hast to be set.

Via no_delay or setTcpNoDelay. It is reported on Windows XP and Linux System see link: http://www.stuartcheshire.org/papers/NagleDelayedAck/

Also a lot of more information can be found, keywords delayed acknowledge or delayed ack.

Could you set this or am i able to set this socketoption before i call your intent?

Best regards,
Rotesmofa