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Old 06-08-2014, 02:33 AM   #1
cyberdome
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My Fedora 20 server download speed is very slow?


My Fedora 20 server download speed is very slow?

I am running Fedora 20, Apache, PHP, MariaDB.

Is there a way OR configuration of a file I can edit to speed up my FC 20 server. I am using it as a file server. I have many files I usually download from other places. I type in the URL and download my files. Currently, when I downloading 20GB ZIP file from somewhere else. It is taking a extremely long time. The download speed is 2.6MB per second. Currently, right now I am in front of my FC 20 SERVER and I am testing downloading a 20GB ZIP file from my windows laptop which is on the same 192.168.1.0 local LAN. And sometimes the SPEED is .1 MB OR 2.5 MB. Any ideas as to why this is happening? Do I need to make any changes to any config files?


Any help is greatly appreciated.

Thanks in advance
 
Old 06-08-2014, 06:39 AM   #2
unSpawn
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There's so many things here we don't know:
- What kind of network connection do you have with your ISP?
- What's the up/down speed the ISP advertises?
- What's the up/down speed of the line in reality?
- What kind of network devices do your machines you speak of use (Ethernet, Wireless, etc, etc)?
- What is each machines connection quality and does it vary over time?
- Are there more networked devices using or saturating that network / line?
- Are your machines properly and is your local router properly configured (bandwidth shaping, QoS, etc, etc)?
- What are the (repeated over hours and days) test results of file D/L's?
- What have you changed already?
 
Old 06-08-2014, 09:55 AM   #3
cyberdome
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Quote:
Originally Posted by unSpawn View Post
There's so many things here we don't know:
- What kind of network connection do you have with your ISP?
- What's the up/down speed the ISP advertises?
- What's the up/down speed of the line in reality?
- What kind of network devices do your machines you speak of use (Ethernet, Wireless, etc, etc)?
- What is each machines connection quality and does it vary over time?
- Are there more networked devices using or saturating that network / line?
- Are your machines properly and is your local router properly configured (bandwidth shaping, QoS, etc, etc)?
- What are the (repeated over hours and days) test results of file D/L's?
- What have you changed already?
- What kind of network connection do you have with your ISP?
I have Verizon FIOS as my ISP. My internet plan is 50 download / and 25 upload.

- What's the up/down speed the ISP advertises?
When I run speed test on my computer. It shows 50down , 25 upload. what do you mean by advertise? sorry, don't understand this question.

- What's the up/down speed of the line in reality?
50down / 25 upload

- What kind of network devices do your machines you speak of use (Ethernet, Wireless, etc, etc)?
Both, computers are using CAT5 ethernet wired connection and both are on the same 192.168.1.0 LAN. They connect directly to my Verizon FIOS Actiontec router.

- What is each machines connection quality and does it vary over time?
I do not know how to find this out. I mean both computers run good. I tried downloading from other outside places such as a library, same result. In my college, I had my friend try to download from her computer. same result.

- Are there more networked devices using or saturating that network / line?
YES, I have about 13 devices, 1 IPAD, 3 laptops, 1 TV, 1 PlayStation 3, 4 cell phones connecting to the Router's WIFI.

- Are your machines properly and is your local router properly configured (bandwidth shaping, QoS, etc, etc)?
I do not know how to do this. I have a Actiontec FIOS Gen-3 router, this is the latest gigabit router they provide.

- What are the (repeated over hours and days) test results of file D/L's?
I have no idea about this.

- What have you changed already?
I have never changed anything as far as bandwitdh goes. I have opened ports 80, some other ports. that is it.
 
Old 06-08-2014, 12:49 PM   #4
btmiller
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So, you note the network connection is slow even when transferring files to/from another computer on the local LAN, correct?

The trick to debug these things is to start at the lowest layer of the OSI model and move up. So, start with the physical (cabling) and data link (Ethernet) layers ... are you using good quality cat5e or cat6 cable? If you look at "ifconfig", do you see large numbers of packet errors or dropped packets? Are your links negotiating at the correct speed? Note, you'll need to test this at both endpoints of the connection. I am sure that there is some way to get this info on Windows, but I have no idea what it is.

I should note that you have quite a lot of devices and your router's internal switching back-end is probably not fully blocking, so it's entirely possible that if you have some very chatty devices your router could be getting overwhelmed. Unfortunately, on a consumer grade piece of kit, it is difficult to impossible to find out any useful information about what's going on behind the scenes, unless you flash custom firmware such as DD-WRT or the like. If possible, I'd recommend turning off all other devices and then re-running your file copy tests to rule this possibility in or out.
 
Old 06-08-2014, 03:28 PM   #5
jefro
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Look at top command.

As unSpawn points out, so many things going on. Suspect the following maybe. Nic or nic to router issue. Driver or nic settings. Simple as checksum offload may be the cure. Overall cpu load. Overall hard drive load and or ability to deliver and write. Look at swap file or swap use. Can you log on to the switch or router to see load or nic config/speeds?
 
  


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