I've installed version 6 fo Drupal on two different computers, with the Apache server.
And I've realised that the overall perfomance is quite slow.
Till now I've tested mainly the administration interface as a authenticated user.

Some section like the site building->module is very very slow, never less the 10sec and sometimes much more (20s-60s). The number of sql query is about 5500!

Fo example last try the devel module was saying for the module list page this:
Executed 5539 queries in 13872.5 milliseconds. Queries taking longer than 5 ms and queries executed more than once, are highlighted. Page execution time was 30588.26 ms.
And the lori mozilla module say
time-to-first-byte :31s
time-to-execution:90s
I don't know why there is so much difference, and why it is son long.

A lighter page like add a new content load in about 4-6s.

I activate APC and all the caching option,
I've visited other site made with drupal or not. And generally the page load never exeed 2s.
I visited a lot of similar forum post with no success for me.
I've tried a fresh installation on my web server 1&1, without APC, without clean url, with the basic modules.
It's better but still too long. So if somebody have an idea, andam i alone to encounter such problems?

Comments

showme2’s picture

The key is the update module , you can disable it and try to access the admin page again.

cog.rusty’s picture

The admin pages in Drupal 6 are slow because they do perform a lot of housekeeping and rebuilding (thousands of queries, as you noticed, and these are not just cosmetic). Caching probably won't help with that.

If it is unworkable, disabling the update status module will probably help a bit, and also there are open issues for reducing the number of queries in next updated, but don't expect the D6 admin pages to become snappy. They take the hit for some tasks which make the user part of the site more reliable.

About the normal site pages... the usual optimization methods should apply.

New-WebMaster’s picture

try raising your php limit to 32 mb if its already not at 32mb...
if its anything less then that u r site will run slow...

gpk’s picture

The modules admin page is known to be (probably) the slowest page on a Drupal site: #311626: admin/build/modules very slow on some configurations.

If you are running on a shared server then probably it's just to heavily loaded to give good performance. If it's your own server then you should be able to improve it significantly. I should say though that it looks like you are using some pretty heavy modules on your site (CCK, Views, possibly Panels or OG) - a cheap hosting package/limited VPS may not be sufficient for what you are trying to achieve.

slucas’s picture

I've just reinstalled Drupal after some months of interuption, I use now the last version 6.13, and make a selection of the only modules i needed to make a photographer portofolio site. I installed APC, the cache.....
But in administrative part or in public part of the site, it is still very slow. I have time to read other pages on internet waiting that the page finish loading. The longest pages are view save or module update. But also every simple page of my simple site when I am alone to see it on localhost, take a long time that would make flee, all my visitors if i don't solve the problem.
I've tried on 3 different computers, one is faster than the others but still very slow.
Per aps I could try online on my web host, to check If the problem come from my server? I don't think so. When I see podcast of tutorials on Drupal, it seem like normal software, where change between pages seem instantaneous. So I don't understand why it's not my case.