CF Performance / Timeout Problems

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hi,

 

we developing , hosting site client around ~3 million pages , around 600k visitors per month.  switched new server , in process upgraded cf10 cf8. many things images, downloads , video streaming done via external cdns. problem having right server/site produces timeouts , gets time time slower point it's dead. after reboot of virtual machine snappy , great again.  may take day or week - there no logic it. while site snappy cfstat shows occasional timeout can't explain. funny thing server isn't problem - on hardware site uses ~10% cpu power , yet coldfusion runs slow.

 

just quick facts:

2 x intel® xeon® x5650 hexa core (6 x 2,66 ghz, 12 mb l3 cache)

ram: 16 gb

4 x 300 gb sas 15krpm 3,5

 

cf running in virtual machine virtualized via vmware esxi. runs mysql on same virtual machine.

 

but more specific question. created new virtual machine , running load tests on tweak , find problem. seems after update 5 got bit better. still unusual timeouts / slow downs every ~2 minutes. dumbed down our load tests 1 single cfm file has 1 query in , standard / empty application.cfc.  duplicated code php , executing exact same query php. php load tests shows no timeouts / errors whatsoever. coldfusion loadtest shows timeouts every ~2 minutes or (not exactly, damn close 2 minutes). have no idea what's causing this. server pretty vanilla installation (we tried centos , ubuntu). there no memory problems can see in cf server monitor. 2 minute errors not caused garbage collection. attached 2 pictures - first coldfusion loadtest , second php loadtest.

 

does have ideas might cause this? running out of ideas here.

 

loadtest_coldfusion.jpg

loadtest_php.jpg

could garbage collection in jvm?  make sure have latest updaters cf10.

 

i'd suggest downloading 10 day free trial of http://www.fusion-reactor.com/fr/ , see says. show memory issues, database issues, , slow pages. use everyday monitor our sites.

 

p.s. not work them or benefit sale of product...

 

cheers!

-dave



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