Theresa; When you say the speedtest.net produces good results, what exactly does that mean? What speeds do they report for each scenario?
Browser speed results are somewhat objective and depend on how the images are rendered. What speeds are determined from non-brower based tasks (e.g. scp, ftp, sftp, or BitTorrent copies) What speeds are observed on the local network amongst the various clients? What are the DNS settings for each client? Are DNS timeouts a possibility? Cheers; E! On Mon, Dec 7, 2009 at 4:05 PM, Theresa Kehoe <[email protected]> wrote: > Installed a new 8-port Cisco Linksys router last week. Noticed by > Friday that web performance was very sluggish. Any URL takes 5-15 > seconds to load. Same behavior on both home computers. Both run Ubuntu > (one 8.10, the other 9.04), both use Firefox for web browsing. Figured > I'd wait until Monday, see if it got worked out, if not, would call. > > Note, speed tests say my connection speed is great (both Cable America's > test, and www.speedtest.net) > > Called Monday; on advice of tech, disconnected router. Plugged cable > modem directly into one desktop computer (running Ubuntu 8.04). Reset > modem, then rebooted computer. Same problem. So, reconnected router. > > Then I started doing some testing to see if changing browser or > operating system makes a difference. System used for test: > > Host computer, Intel Core 2 Duo E7400 @ 2.80 GHz, 4GB RAM, Intel 82566DC > Gigabit Network Connection, running fully updated Ubuntu 9.04 i386, > kernel 2.6.28-17-generic. Web browser is Firefox 3.0.15. Host runs Sun > VirtualBox 3.0.12. VirtualBox clients include CentOS 5.4, Ubuntu 9.04 > and 9.10, and Windows 2000. > > Test: Launch Firefox, browse to http://www.theregister.co.uk and time > how long it takes for the page to fully load. Capture eth0 traffic with > Wireshark; save logs. > > Results: > > 1. Using Firefox 3.0.15 on host, takes 19 seconds to load. > > 2. Using CentOS 5.4 as client, Firefox 3.0.12 as browser, takes 45 > seconds to load. > > 3. Using Windows 2000 as client, Firefox 3.0 as browser, takes 4 seconds > to load. > > Note, did not log Wireshark, but using Firefox 3.5, using Opera, or > running Ubuntu in a VirtualBox is just as slow. Other web sites, same > behavior. Once a connection to a site is established, further > navigation within that site runs reasonably well. > > In the Windows 2000 virtual client, using either IE or Firefox, all web > sites load quickly. > > I am certainly perplexed! -- does anyone have any ideas, or is anyone > willing to plow through the Wireshark log files? > > Theresa > > -- > Central West End Linux Users Group (via Google Groups) > Main page: http://www.cwelug.org > To post: [email protected] > To subscribe: [email protected] > To unsubscribe: [email protected] > More options: http://groups.google.com/group/cwelug > -- Central West End Linux Users Group (via Google Groups) Main page: http://www.cwelug.org To post: [email protected] To subscribe: [email protected] To unsubscribe: [email protected] More options: http://groups.google.com/group/cwelug
