[solved] Difference between 2 cpu, 4cpu and 8cpu?

R

roycerus

Member
#1
#1
Hi,
I just installed litespeed. My admin says that we need to get only a 2 core license as we are using the amazon cdn and 2 core would be enough to deliver the data - in any case the rest of the 6 cores will be used to process php.

I am unsure if that is the best option. What exactly is the difference between a 2 core, 4 core and 8 core license - I know it says that it's optimized for 8 core. But what kind of optimization and results can I see if I invest more to get the 8 core license?

We are heavy php user and my server is a dedicated http server - quad core Intel(R) Xeon(R) CPU E5320 @ 1.86GHz

Kindly clarify.

Regards,
Roycerus
 
Last edited by a moderator:
R

roycerus

Member
#3
#3
Downloads

My Server serves a LOT of files which are stored in an NFS. It's a vbulletin installation which serves the files through attachment.php?attachid=NUM

Does this constitute as file download or something else?

The cores which are being used by LSWS - are they also available for php processing if needed?

Will getting a 8 core license give me more FLEXIBILITY to serve files quickly and also serve php depending on user connections and current needs?

I have a dedicated mysql server - so the only processes running on the server is lsws and postfix. Given the scenario - I am thinking perhaps I should go with a 4 core / 8 core license - what do you think?
 
N

NiteWave

Administrator
#4
#4
>Does this constitute as file download or something else?
should be file download

>The cores which are being used by LSWS - are they also available for php processing if needed?
yes. actually it's decided by kernel.

to enable lsws page cache for vBulletin, need 2-CPU(or above) license. between 2/4/8-CPU license, which is best for your site and traffic, depending on many other factors. you can switch between these licences, to watch the performance for a few days, to get the best answer from yourself.

for upgrade/downgrade license,please refer:
http://www.litespeedtech.com/suppor...espeed_wiki:license:upgrade_downgrade_license
 
R

roycerus

Member
#5
#5
I have 2 cpu enterprise trial installed - if I buy a 4 cpu license would I need to get it reinstalled or will just updating the serial key work?
 
N

NiteWave

Administrator
#6
#6
serial.no no change. no need re-install. as stated in the wiki:
Your license will be updated from our license server automatically once invoice is paid. Your local license key will be auto-updated within one day. If you want it to become effective immediately, Please run following commands to retrieve a new license key,

/usr/local/lsws/bin/lshttpd -r
/usr/local/lsws/bin/lswsctrl restart
assuming LSWS is installed to /usr/local/lsws.
Click to expand...
this is all you need do when upgrade/downgrade. it's convenient.
 
R

roycerus

Member
#10
#10
I just ran into a "Prefetching is not allowed due to the various privacy issues that arise." on both firefox and chrome. This has never happened before. Could this be related to the Litespeed cache?
 
R

roycerus

Member
#12
#12
Enable Cache Yes
Cache Expire Time (seconds) 1200
Cache Request with Query String Yes
Cache Request with Cookie Yes
Cache Response with Cookie Yes
Ignore Request Cache-Control No
Ignore Response Cache-Control No
Enable Private Cache Not Set
Private Cache Expire Time (seconds) Not Set
 
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R

roycerus

Member
#13
#13
No... this happened simultaneously on all three browsers. I have safari, chrome and firefox installed. I checked on all immediately when I encountered it. In one I was logged in [vbulletin] and the other 2 I wasn't - it happened on all 3. I don't think I have ever installed Google Toolbar - and definitely not on all three. It could be the Google notifier but that's a mac app not related to the browser.

I'll notify if it happens again. It seemed to happen after a period of inactivity.
 
R

roycerus

Member
#15
#15
Yes... I have vbseo installed. I tried the cookie creating and checking method but strangely it wasn't checking the cookie so I had to remove it. With the vbulletin product installed and the htaccess entry it was showing cached pages even when I was logged in.

After I disabled the product and removed the htaccess - things are working smoothly and caching the pages. But then the prefetch error happened.

It's strangely working smoothly again.
 
R

roycerus

Member
#16
#16
Happened again. I have disabled caching with cookies:

Enable Cache Yes
Cache Expire Time (seconds) 1200
Cache Request with Query String Yes
Cache Request with Cookie No
Cache Response with Cookie No
Ignore Request Cache-Control No
Ignore Response Cache-Control No
Enable Private Cache Not Set
Private Cache Expire Time (seconds) Not Set
 
R

roycerus

Member
#18
#18
I think I would like to upgrade to an 8 cpu - looking at the requests I can see most of them are attachment downloads. How do I do that?

How much do you charge to optimize the server? Currently I have eaccelerator running but it's not recognized by some of the vbulletin modifications.
 
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