Is memcache impacting my performence negatively?

Asked Nov 04 '12 at 04:07

Active Nov 04 '12 at 10:04

Viewed 167 times

I am using pressflow 6 and NewRelic seems to suggest that memcache is infact hurting performance as shown below :

DB Vs Memcache Load

My settings.php file :

# Varnish reverse proxy on localhost
$conf['reverse_proxy'] = TRUE;           
$conf['reverse_proxy_addresses'] = array('127.0.0.1'); 

# Memcached configuration
$conf['cache_inc'] = './sites/all/modules/memcache/memcache.inc';
$conf['memcache_servers'] = array(
         '127.0.0.1:11211' => 'default',
         );
### END Mercury settings written on 2011-11-01T07:12:49-04:00

asked Nov 04 '12 at 04:07

iTech

What part of that makes you think that memcache is negatively impacting performance? – MDMarra Nov 04 '12 at 04:13
Disable memcache and see what happens. I have a feeling you won't like the result... – Michael Hampton Nov 04 '12 at 04:37
Page rendering is taking more time in memcache then in DB... am I missing something in reading the chart above ? – iTech Nov 04 '12 at 10:04
1

If those numbers are right, your performance problems are not coming from Drupal, your database, or memcached. Look elsewhere. – Michael Hampton Nov 05 '12 at 17:34
Can you post the output of `top` when the site is slow, or maybe a minute or two of `dstat`? – Tom O'Connor Nov 05 '12 at 17:37
If not drupal, db or memcache then what ? Newrelic is showing these taking time ? – iTech Nov 06 '12 at 12:28
@tom-oconnor Here's the top output : [link](http://notepad.cc/share/mb37EDe4yZ) – iTech Nov 08 '12 at 05:32

Is memcache impacting my performence negatively?

0 Answers0