Various bundle generation issues (redirects, loops, hanging pages etc)

Some *basic* advagg 'benchmarking'...

I performed a advagg build test with cold data / caches (no data aggregates):
Here is the .jpg snapshot: (see: http://drupal.org/files/advagg-building.jpg )

I then did the same benchmark 'after' advagg had complete aggregate builds:
(see: http://drupal.org/files/advagg-cache.jpg )

Just for those so 'curious minded' ... :)

Note: The Linux Server I use was at a 'cold start' for this test, with all caches near 'non-existent'.
I forced total deletion of all advagg's aggregate store at both local /files/advagg_css + /files/advagg_js. I also purged all stored cache assets at my edgecast 'PULL' CDN.

I will point out that I did not manually run the advagg admin GUI 'build, I simply allowed the first 'cold' client HTTP request to 'kick' the advagg 1st time 'build' process.

Test Values Set/ Used:
1) Typical D6 home page: http://www.peterbowey.com.au with about 45 active modules (12 = 3rd' party)
2) Purged Drupal MySQL cached entries (mainly advagg 'bundles' + 'files')
3) Memcached Daemon + Memcache D6 = 'empty'
4) Nginx 'Upstream' pools = 'cold start' (PHP-FPM FastCGI)
5) CDN (pull) = Purged
6) Advanced CSS/JS Aggregation Settings: Compress CSS Files, Compress Inline CSS, Compress JS Files, Compress Inline JS
7) Client End = COLD for each /GET test (no HTTP is 304 possible) eg; NO caching - not a F5 'refresh'!

In numbers:
1) Cold Build test: 11.4 seconds until HTTP client 'start render' (home page site)
2) Asset Avail State test: 1.78 seconds until HTTP client 'start render' (home page site)

Linux / PHP / Drupal Error State Logs: 'None'

For those wishing to be on the same bench-test site, see: http://www.webpagetest.org/

multibyte issue is with core #837322: htmlspecialchars - Invalid multibyte sequence in argument I'll see if I can work around it when outputting the debug info. Code below is used to output the debug info. Open to ideas on how to format the print_r better.

    $data = str_replace('    ', '    ', nl2br(htmlentities(print_r($data, TRUE))));
    watchdog('advagg', 'Debug info: !data', array('!data' => $data), WATCHDOG_DEBUG);

There may also be a multibyte issue using the PHP PECL JSMin+ (faster C Version), see:
http://www.ypass.net/blog/2009/06/really-fast-javascript-minify-in-php/#...

@crea
Next time you get an error like this
"This request could not generate correctly. Loop detected. Request data: sites/example.com/files/advagg_js/js_74e9b8d252b17e1f477bdeb85e93c845_0.js" can you add ?advagg-debug=1 to the url and get the debug output?

Here's a shot in the dark for the debug code. Let me know if this fixes the issues with Invalid multibyte sequence in argument

committed the patch above.

Postponed this issue until feedback is given.

Going to close this issue