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Apache Directive: EnableSendfile

Posted by mmilano on May 12, 2010 at 8:37pm

I was reading the Apache Performance Tuning documentation last night and came across the EnableSendfile directive.

Authenticated Users - Recommendations?

Posted by regi.bradley on May 14, 2010 at 3:11pm

I wanted to see if anyone has some recommendations on how to best improve response times for a multi-site installation with several sites serving content to mostly authenticated users. None of our sites are very big - I estimate that we will have about 75-100 authenticated users at any given time between the sites that I'm running. Right now, we have about 10-15 authenticated users and performance is not terrible but I would like to get faster response times and make sure that we're ready for the additional load.

Server Specs:
Dual Core Conroe 3040
4GB RAM
Apache 2.2.11

Question about using Memcache API module

Posted by dparkmit on May 16, 2010 at 3:21am

Hi All,

I have a question on how to set up the Memcache API module on my Drupal 6 site for the first time.

The Memcache API documentation states that "In addition, if you have modules that implement their own cache tables using the cache API, they need to also implement the hook_devel_caches hook."

I have at least a couple of contrib modules such as Views that use their own cache tables. The code for the Views module doesn't contain an implementation of the hook_devel_caches hook. But when I checked out the cached keys in my memcached sever, I found Views-related keys.

My database writes are very slow, tips?

Posted by djudd on May 21, 2010 at 12:49pm

Any write to my database, be it UPDATE, INSERT, or DELETE, is very slow and spikes my CPU very very high, usually above 100%. And it doesn't matter at all if that table is INNODB or MYISAM, happens every time.

I have a quad core system with 8GB of RAM running both Apache and MySQL for a single server solution. My OS runs on the main drive, and my database is on a separate drive.

Any tips on where to begin looking for the problem?

APC + Memcache + Boost Question

Posted by djudd on May 23, 2010 at 10:17pm

I'm (obviously from the title) using APC, Memcache, and Boost. And so far loving it. But I have a question for the more experienced in this area.

I started off using three memcache bins... default, page, and filter.

My APC memory is 256MB, and it's got 100% hit rate with 0% fragmentation. I'm thrilled with that.

Boost is chugging right along, caching more than I ever expected it to, and serving anonymous pages "BLAT" fast.

My memcache default bin has a 75% hit rate, and the filter bin has a 70% hit rate. Both very acceptable to me.

Best Practice: Multi-Webservers (Pressflow), Varnish, memcached, APC, CDN

Posted by adrifl on May 24, 2010 at 11:39am

Hi,

We begun our deployment of a large community website from a single machine that combined DB and web server two years ago. We experienced continuous growth and our system evolved significantly, different performance tunings led to the following setup (so far):

Machine A - httpd
Machine B - httpd
Machine C - httpd + Varnishd (incoming traffic, round robin load balancing between httpd on A, B and C)
Machine D - several memcached instances
Machine E - several memcached instances
Machine F - mysqld + NFS

How Good/Bad is Authcache?

Posted by dparkmit on May 25, 2010 at 4:36pm

Hi All,

Does anyone have experience using Authcache? If so, how much of a speed gain do you really get? Also, does it play well with Boost? I'm considering using Authcache on our site since we only have 1 class of registered user (besides admin) and have no display elements that are customized per user.

Cheers,
David

Remaining performant while backing up a server

Posted by Garrett Albright on May 25, 2010 at 5:04pm

Does anyone have any strategies for making a full back-up of a web server's data without slowing down the server itself?

Node tables as INNODB?

Posted by djudd on May 25, 2010 at 11:40pm

I've been considering converting my node and node_revisions tables to INNODB to avoid locking, but I've heard that putting those tables, or the search tables into INNODB is a very bad idea.

The problem is, I'm not sure why it's a bad idea. Can anyone shed some light on this one for me?

When 5-10 user login the same time, server not responding anymore for 20 minutes; site maintenance mode; swap file

Posted by jaochoo on May 28, 2010 at 9:01am

We are running our intranet on a webhosting provider. At first, the provider did not have our requirements at all (some Drupal requirements not possible on a shared hosting because it might affect other customers on that hosting). So paid him more to move from a shared hosting to an own server.

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