On 23/06/2015 22:04, Alan Pope wrote:
> On 23 June 2015 at 21:50, Alan Pope <alan@???> wrote:
>> http://hants.lug.org.uk/
>> http://www.hantslug.org.uk/
> It finally loaded some 44 seconds later. http://imgur.com/vDFstIA (top right)
I've done a bit of investigation to help whoever ends-up attempting to
fix this issue:
The problem appears to be something slowing the loading of four
javascript files and one css file:
- /?bfa_ata_file=css
- /wp/wp-includes/js/jquery/jquery.js?ver=1.11.1,
- /wp/wp-includes/js/jquery/jquery-migrate.min.js?ver=1.2.1,
- /wp/wp-content/themes/atahualpa/js/DD_roundies.js?ver=0.0.2a, and,
- /?bfa_ata_file=js
specifically the "Time Till First Byte" (TTFB) of each of these files is
huge (Large TTFB indicates delay server-side which is occurring before
_ANY_ data is transferred). This might be due to disk-thrashing caused
by excessive swapping, or some other IO bottleneck issue server-side.
(Once the files hit the network they transfer quickly so networking is
not the issue here at all. Also the html pages themselves are received
in less-than 300ms further confusing matters, though I note that the
html is cached by wp-supercache meaning that for most requests very
little PHP code is touched, if any.)
HTH.
--
Daniel Llewellyn; PGP/GPG: 0x0349ED21
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