Very long Time to First Byte on hosting with opcode XCache

Dear Gavick

Our Webhosting provider WEDOS (www.wedos.cz) set opcode cache for PHP - XCache for all webservers befor 14 days.
All websites, where is active module Weather GK4 (), are suddenly slowed down.

By testing on http://webpagetest.wedos.com or http://tools.pingdom.com, I found that changing the Time to First Byte from 1 second to 12 seconds.

I tried different settings module, mainly cache settings, but without result.

There are 2 samples of webiste with slow module Weather Gk4:
http://www.joomlapolis.cz/test/silvarium2/ - template NEWS
http://www.joomlapolis.cz/test/silvtest/ - template NEWS2

best regards
Jindrich Ekart

The data for Weather is generated based on yahoo feed and this cURL operation may take time. Did you try to enable cache in module?

Yes, I tried both - enable cache ON and cache time 30,60,90 minutes and disable cache ( cache OFF). Result is same - very long time Time to First Byte.
When I disable module Weather, TTFB is normal.

There are no code inside Weather which may produce this issue. Process which match icons to current conditions may take some time but there is no way to avoid that using icon sets. If you switch icons to yahoo default icons the same happen?

I found that problem is in test for cache time setting in file helper.php (row 224):
(filesize(realpath('cache/mod_weather.bxml')) == 0 || ((filemtime(realpath('cache/mod_weather.bxml')) + $this->config['cacheTime'] * 60) < time()))

I have set cache time for 180 minutes but every time again downloads a file from Yahoo.

And other problem is in setting for CURLOPT_TIMEOUT in file helper.php (row 238 and 285)
curl_setopt($curl, CURLOPT_TIMEOUT, 20);

When I try change this code to:
curl_setopt($curl, CURLOPT_TIMEOUT, 1);
the responses from the server was 1 second, and the page is loading quickly

Please check this fixes » https://github.com/GavickPro/Weather/co ... 98ecf8427e

Set time to 1 probably will cause that you will not load feed from Yahoo - 1 second is to less to load feed via cURL.

Thank you very much for fix module Weather.

In Weather module now works test for the presence of XML file from Yahoo and webpage loading time is now OK.

The problem is solved.

Thanks for your tips, hope that latest update commit resolve problems with long website loading.