Results 1 to 6 of 6

Thread: My results are too good to be true

  1. #1
    Newb
    Join Date
    Feb 2012
    Posts
    2
    Thanks
    0
    Thanked 0 Times in 0 Posts

    My results are too good to be true

    Wireless network with Dlink DIR-655 802.11N Router, Atheros AR9285 Wireless Network Adapter. Notebook, no wired ethernet connection.

    Results from LAN Speed test version 1.1.7 written to folder.

    Writing Reading
    Packet Length 20,000,000 20,000,00
    Time to complete 0.0196331 0.4657205
    Bytes per second 1,018,687,828 42,944,212
    Mbps 8,149.5026240 343.5536960

    Any idea about these results?

  2. #2
    Home Network Guru
    Join Date
    Dec 2011
    Posts
    119
    Thanks
    0
    Thanked 1 Time in 1 Post
    Where is the folder located that you are writing to? It sounds to me that you are possibly testing to your local C: Drive. It needs to be a shared folder on a different computer or NAS device on your network than your laptop. Otherwise you are testing read/write speeds of your hard drive (obviously with write cache enabled to give you a speed of 8,149 Mbps).

    -Pete

  3. #3
    Newb
    Join Date
    Feb 2012
    Posts
    2
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Thank you. I managed to figure that out....

    ...now the results are more down to earth.

    Worth maybe to include in instructions?

  4. #4
    Newb
    Join Date
    Feb 2012
    Posts
    2
    Thanks
    0
    Thanked 0 Times in 0 Posts
    I am seeing the same sort of performance, it is definitely reading the file cache from the local machine. I thought it was supposed to clear the cache between the transition of reading & writing?
    Capture.PNG

    What is funny is if I run the reverse the test and run it from the server to my workstation instead I get more accurate results.

    Capture1.PNG

    It's impractical to totally disable the disk cache on my machine, is there anything else that I can do? My machine is Windows 7 x64 and the server is W2k3 R2 SP2. How can I verify that it is clearing the cache since it apparently is not logging that it is actually doing that in the debug output? I should also note that this is across a WAN link.

    Code:
    Version 2.0.8
    Serial Number: 101200003556
    Software Key: ****-****-2187
    OS Version: Microsoft Windows 7, Professional Service Pack 1
    Computer Name: areedwin7
    Network Card: Broadcom NetLink (TM) Gigabit Ethernet
    Network Card: 11b/g/n  Wireless LAN Mini-PCI Express Adapter II
    Network Card: Broadcom NetLink (TM) Gigabit Ethernet
    Network Card: Remote NDIS based Internet Sharing Device
    IP Address: 192.168.100.57
    MAC Address: 00-27-13-64-B0-EC
    Processor: Intel(R) Core(TM)2 Duo CPU     T6670  @ 2.20GHz
    Timer: High Precision
    Timer Response = .5164403
    Mode: Decimal
    IniFileWriteable: 1
    IniFile: C:\Users\areed\AppData\Roaming\Totusoft\LAN Speed Test\LST_Settings.ini
    LogFile: C:\Users\areed\AppData\Roaming\Totusoft\LAN Speed Test\LST Log.csv
    
    Packet Length: 5,000,000  2
    Folder or Server IP: \\BC-shallotte\shared
    Write Speed: 3.8793360 Mbps
    Write Speed: 260.6700400 Mbps
    Status: Finished
    Date: 02-15-2012 at 10:37:58

  5. #5
    Home Network Guru
    Join Date
    Dec 2011
    Posts
    119
    Thanks
    0
    Thanked 1 Time in 1 Post
    Are you testing across a remote network (ie. VPN)? What do your results look like if you shrink your test packets to 100KB (press 'Config' button and use slider on ' Test Packet Size')? Your read speeds seem slow unless you are going across a slower remote network. The client does clear the cache between write/reads. Let me know some more specifics (you can email me at support@totusoft.com if you wish) and I'll do some testing with a similar configuration.

    -Pete

  6. #6
    Newb
    Join Date
    Feb 2012
    Posts
    2
    Thanks
    0
    Thanked 0 Times in 0 Posts
    HI Pete, thanks for your reply. I am testing across an IPsec VPN link to our remote office and that office is on a DSL connection. When I increased the number of test packets I can see it alternating between clearing cache, writing, and reading data fairly quickly. I still see a very high reading speed though so changing the settings didn't seem to help.

    Capture1.PNG

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •