Big performance issues regarding the browser

Rails
1

Hi !

I have a ruby server set up running Ruby v1.8.7 and those gems :
actionmailer (2.3.8, 2.3.5, 2.3.3)
actionpack (2.3.8, 2.3.5, 2.3.3)
activerecord (2.3.8, 2.3.5, 2.3.3)
activeresource (2.3.8, 2.3.5, 2.3.3)
activesupport (2.3.8, 2.3.5, 2.3.3)
fastthread (1.0.7)
haml (3.0.12, 2.0.6)
mysql (2.8.1)
passenger (2.2.14, 2.2.9)
rack (1.1.0, 1.0.1)
rails (2.3.8, 2.3.5, 2.3.3)
rake (0.8.7)
restful_authentication (1.1.6)

The web server used is NGinx running on port 8443 ; transactions are
made with HTTPS.

I’m facing a serious issue : when the developped site is browsed with
firefox, eveything is clean and fast. When browsed with IE, it is
verrrryyyy sloooowwww (more than a minute for each page to show). I
checked various parameters on the server, in the browser, checked the
logs,but I’m running out of idea.

Has one of you faced a problem like it before ?

Could you propose a way to determine where the bottleneck is ?

The only thing I havent done is install a packet sniffer to investigate
the transactions …

Any help would be really appreciated,

Thanks a lot,

Nicolas

2

Nicolas V. wrote:
[…]

I’m facing a serious issue : when the developped site is browsed with
firefox, eveything is clean and fast. When browsed with IE, it is
verrrryyyy sloooowwww (more than a minute for each page to show). I
checked various parameters on the server, in the browser, checked the
logs,but I’m running out of idea.

Are you using JavaScript? If so, the problem might somehow be related
to the difference in JS interpreters.

Best,

Marnen Laibow-Koser
http://www.marnen.org
[email protected]

3

Yes I’m using JavaScript ; I tried disabling it but it didn’t solved the
problem.

I found a part of the solution : put the keepalive_timeout to 0.

Now it’s as speedy on Firefox than IE !! But … the bigger pictures
don’t want to display anymore … Even if I just try to load a pictures
stored in the public/images directory directly (so no JavaScript is
involved). I’ll try fidling around this parameter.

Thanks for your thought though,

Marnen Laibow-Koser wrote:

Nicolas V. wrote:
[…]

I’m facing a serious issue : when the developped site is browsed with
firefox, eveything is clean and fast. When browsed with IE, it is
verrrryyyy sloooowwww (more than a minute for each page to show). I
checked various parameters on the server, in the browser, checked the
logs,but I’m running out of idea.

Are you using JavaScript? If so, the problem might somehow be related
to the difference in JS interpreters.

Best,

Marnen Laibow-Koser
http://www.marnen.org
[email protected]

4

On 17 June 2010 09:36, Nicolas V. [email protected] wrote:

mysql (2.8.1)
firefox, eveything is clean and fast. When browsed with IE, it is
verrrryyyy sloooowwww (more than a minute for each page to show). I
checked various parameters on the server, in the browser, checked the
logs,but I’m running out of idea.

Are you sure it is browser related rather than a configuration problem
on the client PC? If you have not already done so try it on another
PC. You may already have done this of course.

Another thought, have you checked that the html is valid by pasting it
into the w3c html validator website?

Colin

5

Are you sure it is browser related rather than a configuration problem
on the client PC? If you have not already done so try it on another
PC. You may already have done this of course.

Yes I’m sure it’s browser related. Actually I found the source of my
second issues (some pictures not displaying anymore) : every image_tag I
do generate the needed stuff only it’s followed by some parameter :
picture.png?12345322

When I remove it everything is going fine ! Do you know where I can
disable this ‘feature’ so it’ll stop appending this ?

Another thought, have you checked that the html is valid by pasting it
into the w3c html validator website?

O errors or warnings.

Colin

Thanks for your help,

Nicolas