PHP Acceleration Xcache vs APC

[sturdevk]

check this out:
http://www.vbulletin.com/forum/showt...20#post1311520

Originally Posted by djxcee

I've never gotten that error.
Where and when does it occur?

[DieselMinded]

FINALLY IM NOT CRAZY !!!!!!!!!!!!!!!!!!!!!!

From Scott MacVicar - Vbulletin Developer

Remove Xcache, you'll find there are currently some known problems with it when classes are loaded in a different order. They contacted us recently about it and we will try to help them resolve it.

Consider using APC

[Paul M]

Originally Posted by sturdevk

for those folks who are happy with XCache, don't you guys get the following error message from time to time?:
Fatal error: Direct Instantiation of vB_Image_Abstract prohibited. in /includes/class_image.php on line 190.

vBulletin developer recommended using APC instead of XCache.

Never got that error. Still quite happy using xcache.

That post btw (by Scott) is two years old, Xcache has been updated since then.

[DieselMinded]

I never got that error either , my issue was when changing a users avatar via admin cp i would have to go threw the paces 3 times or more before it would take , same as editing a forum or adding a new forum , it would take 15 mins before you could use it with out error messages from vbulletin , Vbulletin.com came to my admin cp with full access and returned with a report that they couldnt reproduce my issue , i immediately went to try to edit something and it took 15 mins before the changes were visible i did not report back to vb.com at that time

also we went threw and manually removed over 500 emails from user accounts that returned as undeliverable , to our surprise weeks later we went to look and all of them returned thats hours or wasted time and resources , which directly converts to $$$ LOST ,

again we manually processed the emails and only 200/500 took , it took us 3 more times before we was successful at removing the 500 ignoramus emails .

with 20-30 new members a day an no requirement to verify email accounts , every mass email turns up undeliverable mail , we let these build and build because our method of removal was hit and miss , the day i switched back to APC we manually processed about 100 emails all of them took first try

No smoke and mirrors here

[Paul M]

Originally Posted by DiesellMinded

It must have 100% to do with xcache because after i switched to APC everything returned to being instant with no delay

Sorry, but I dont see how any php cache has any bearing on the sending of e-mails.

[DieselMinded]

not sending of emails

removing undeliverable email addresses from members profiles

[DieselMinded]

APC still kicking butt !!!

[Paul M]

As is Xcache

[DieselMinded]

We need to stage an php accelerator showdown

Sunday Sunday Sunday ...

2 MATCHING SERVERS
1 with Xcache
1 with APC

and 1 php file

ITS ON !!!



(of course you will have to hit go 2 or 3 times on the Xcache to get it to execute by that time APC is hanging out with xcache's girlfriend at the local cafe drinking a Dr. Pepper with 2 straws)

[KevinL]

Never had a problem with xcache.

Like Paul said it has been updated some. Version 1.2.2 works great.