topic Re: FTP throughput in Operating System - Tru64 Unix

FTP throughput

Ahmad_4 — Wed, 07 May 2003 19:14:46 GMT

I use ftp program from my window 2000 professional to upload and download huge dump files from the tru64 4.0f server. My problem is that I got high throughput when I down load these file to my machine, but I got 15kbs when I upload these files to the server. How to increase the upload throughput speed?
Any help is appreciated

TIA
Ahmad Alghaden

Re: FTP throughput

Dave Bechtold — Thu, 08 May 2003 03:11:34 GMT

Hi Ahmad,

My first thought would be to try an isolate the problem a bit further. If you do ftp's of the file from the tru64 server to itself - does that performance compare to the Windows 2000 performance. This would isolate the problem local to the tru64 FTP Server. If the performance is OK there, then it could be the potential route/network/PC configuration of/to the Windows 2000 system.

Do "netstat -i" and check Ierrs & Oerrs on the tru64 side. Do they look clean while doing an FTP upload from the PC to the tru64 unix server?

What is the ping performance like in either direction?

Check the network routes from tru64 unix side (traceroute) and from Windows 2000 side (tracert). Could be different routes being taken.

Keep in mind to use the same identifier used for FTP, the ip name or the ip address in your ping and traceroute testing. Maybe DNS related.

Hope this helps.

Regards,
Dave Bechtold

Re: FTP throughput

Ralf Puchner — Thu, 08 May 2003 06:32:42 GMT

Try -w option on NT side to change the packet size. Does it help?

Re: FTP throughput

Ahmad_4 — Thu, 08 May 2003 14:49:59 GMT

Thanks Dave and Ralf

Today is the weekend in Saudi Arabia Thursday 06:30PM.
Only some users are login to my ES40 alpha server. I performed upload and download again and got the following results.
ftp> get full.dmp
200 PORT command successful.
150 Opening BINARY mode data connection for full.dmp (10.1.32.35,1131) (12495093
76 bytes).
226 Transfer complete.
ftp: 1249509376 bytes received in 136.67Seconds 9142.39Kbytes/sec.
ftp> put full.dmp
200 PORT command successful.
150 Opening BINARY mode data connection for full.dmp (10.1.32.35,1134).
226 Transfer complete.
ftp: 1249509376 bytes sent in 181.45Seconds 6886.13Kbytes/sec.
ftp>

As it show above the transfer rate for both upload and download is apprx 10MB/S.
But during job hours, I got good upload rate and bad download rate .

Any help plz

Ahmad Alghaden

Re: FTP throughput

Dave Bechtold — Thu, 08 May 2003 18:17:32 GMT

Hi Ahmad,

Makes sense that performance is better while the network is not loaded. But, there is still approximately a 20% difference in performance from a download versus an upload. Does this ratio compare to what you see during a typical network load, during business hours ?

You only mentioned the upload performance (15Kbps) in your original posting.

Also, I'd still look at the netstat, ping and traceroute data while the issue is occurring.

Hope this helps.

Regards,
Dave Bechtold

Re: FTP throughput

Ahmad_4 — Sun, 11 May 2003 06:34:26 GMT

Thanks Dave
It is network problem .
I thought it is ftp daemon configuration problem
My case is solved right now .

Microsoft Windows 2000 [Version 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.

C:\>tracert 128.128.100.1

Tracing route to 128.128.100.1 over a maximum of 30 hops

1 <10 ms <10 ms <10 ms 10.1.32.2
2 <10 ms <10 ms <10 ms 128.128.100.1

Trace complete.

C:\>ping 128.128.100.1

Pinging 128.128.100.1 with 32 bytes of data:

Reply from 128.128.100.1: bytes=32 time<10ms TTL=63
Reply from 128.128.100.1: bytes=32 time<10ms TTL=63
Reply from 128.128.100.1: bytes=32 time<10ms TTL=63
Reply from 128.128.100.1: bytes=32 time<10ms TTL=63

Ping statistics for 128.128.100.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\>

moeduc1> ./traceroute 10.1.32.35
traceroute to 10.1.32.35 (10.1.32.35), 30 hops max, 40 byte packets
1 128.128.81.200 (128.128.81.200) 0 ms 0 ms 0 ms
2 10.1.32.35 (10.1.32.35) 0 ms 0 ms 0 ms
moeduc1>

Re: FTP throughput

Dave Bechtold — Sun, 11 May 2003 13:31:44 GMT

Hi Ahmad,

I'm glad that information helped you solve the problem.

Take care,
Dave Bechtold