[Answered] [Question] CPU Usage

tofu · February 13th, 2008, 11:09 AM

Hi! A quick question before I sign up...I really don't understand what CPU Usage is. Can someone explain it to me please? Also, what's the usage limit for surpass shared hosting? And what can i do to prevent from over-using the cpu?

**removed** · February 13th, 2008, 11:13 AM

This is the limit: About Surpass Hosting

The page does a pretty good job of explaining what it is. As for preventing it, most sites won't cause problems, but if they do we'll do our best to notify you and get you moved over to a dedicated server. There really is no way to specifically prevent going over the CPU usage quota if you've got a high traffic site.

H · February 13th, 2008, 11:21 AM

CPU Usage

Web languages are generally not compiled code. They're intrepreted on the fly by things like PHP, Python, Ruby, etc... This is not only kinda slow (compared to compiled code), but it also requires more CPU. Just think of every PHP include you're doing.

Everytime someone loads a page is it essentially recompiling on the fly. The whole thing. To help curb CPU usage you can start caching content in a number of ways. Memcach, fragment caching, or even having your CMS generate new HTML on every update. Any of these can significantly reduce the CPU usage by reducing the amount of times it actually has to generate the whole page.

Let's look at a thread on Surmunity. I just found one with 3 replies and 50 views. Simple math shows a difference of 47 times the page was generated, but no content was changed. That's pretty inefficient.

removed is mostly right, but if your site is not being served from cache, you can probably get your site from overusing CPU to within the limits by enabling it. If you breach it again, you'll definitely want to look at a dedicated solution -- which would hopefully yield performance gains all around.

**Mike** · February 13th, 2008, 11:39 AM

Heres an older security link/image
http://www.surpasshosting.com/conten...g-security.png
Keeping up with security on your account will reduce the chances of violating our RAP

tofu · February 13th, 2008, 5:14 PM

So if I use a cms instead of having pages with php includes, would it reduce the risk of overusing?

Also, can i set a restriction on my cpu usage just in case if i go overboard?

**removed** · February 13th, 2008, 6:13 PM

Quote:

Originally Posted by tofu

So if I use a cms instead of having pages with php includes, would it reduce the risk of overusing?

Any kind of CMS with cached pages would help a lot. I highly recommend tools like WP-Cache2 for WordPress as they tend to help reduce load for some larger sites.

Quote:

Originally Posted by tofu

Also, can i set a restriction on my cpu usage just in case if i go overboard?

Nope. cPanel's user accounting system doesn't have a way to limit CPU time per user, so that is not possible at this time.

tofu · February 13th, 2008, 8:38 PM

AH okie then

i'll just cache the pages in joomla ^_^ Thanks you guys for everything!

**removed** · February 13th, 2008, 9:23 PM

No problem, happy to help.

tofu · February 20th, 2008, 6:47 AM

im still a bit worried about cpu >.< sorry. One last question: is it possible for me to get a warning when i'm close to my limit?

February 13th, 2008, 11:09 AM	#1 (permalink)
tofu some girl... Fresh Surpasser Joined in Feb 2008 Hosted on SH123 12 posts Gave thanks: 0 Thanked 0 times	[Answered] [Question] CPU Usage Hi! A quick question before I sign up...I really don't understand what CPU Usage is. Can someone explain it to me please? Also, what's the usage limit for surpass shared hosting? And what can i do to prevent from over-using the cpu?

February 13th, 2008, 11:13 AM	#2 (permalink)
removed Surpass Abuse Admin Super #1 Joined in Mar 2005 Lives in Houston, TX Hosted on NONE 7,797 posts Gave thanks: 11 Thanked 278 times	This is the limit: About Surpass Hosting The page does a pretty good job of explaining what it is. As for preventing it, most sites won't cause problems, but if they do we'll do our best to notify you and get you moved over to a dedicated server. There really is no way to specifically prevent going over the CPU usage quota if you've got a high traffic site. __________________ Unofficial IRC Channel: #surpass EFNet Unofficial = No official support. Support requests can be submitted to our helpdesk.

February 13th, 2008, 11:39 AM	#4 (permalink)
Mike Operations Super #1 Joined in Jun 2005 Lives in surpass headquarters 1,028 posts Gave thanks: 67 Thanked 128 times	Heres an older security link/image http://www.surpasshosting.com/conten...g-security.png Keeping up with security on your account will reduce the chances of violating our RAP __________________ Mike Surpass Special Operations Last edited by Mike; February 13th, 2008 at 11:41 AM.. Reason: stickied

February 13th, 2008, 9:23 PM	#8 (permalink)
removed Surpass Abuse Admin Super #1 Joined in Mar 2005 Lives in Houston, TX Hosted on NONE 7,797 posts Gave thanks: 11 Thanked 278 times	No problem, happy to help. __________________ Unofficial IRC Channel: #surpass EFNet Unofficial = No official support. Support requests can be submitted to our helpdesk.

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February 13th, 2008, 11:21 AM	#3 (permalink)
H after g, before i Resident. Joined in Jul 2004 Lives in N,BC,CA 8,087 posts Gave thanks: 48 Thanked 131 times	CPU Usage Web languages are generally not compiled code. They're intrepreted on the fly by things like PHP, Python, Ruby, etc... This is not only kinda slow (compared to compiled code), but it also requires more CPU. Just think of every PHP include you're doing. Everytime someone loads a page is it essentially recompiling on the fly. The whole thing. To help curb CPU usage you can start caching content in a number of ways. Memcach, fragment caching, or even having your CMS generate new HTML on every update. Any of these can significantly reduce the CPU usage by reducing the amount of times it actually has to generate the whole page. Let's look at a thread on Surmunity. I just found one with 3 replies and 50 views. Simple math shows a difference of 47 times the page was generated, but no content was changed. That's pretty inefficient. removed is mostly right, but if your site is not being served from cache, you can probably get your site from overusing CPU to within the limits by enabling it. If you breach it again, you'll definitely want to look at a dedicated solution -- which would hopefully yield performance gains all around.

February 13th, 2008, 5:14 PM	#5 (permalink)
tofu some girl... Fresh Surpasser Joined in Feb 2008 Hosted on SH123 12 posts Gave thanks: 0 Thanked 0 times	So if I use a cms instead of having pages with php includes, would it reduce the risk of overusing? Also, can i set a restriction on my cpu usage just in case if i go overboard?

February 13th, 2008, 8:38 PM	#7 (permalink)
tofu some girl... Fresh Surpasser Joined in Feb 2008 Hosted on SH123 12 posts Gave thanks: 0 Thanked 0 times	AH okie then i'll just cache the pages in joomla ^_^ Thanks you guys for everything!

February 20th, 2008, 6:47 AM	#9 (permalink)
tofu some girl... Fresh Surpasser Joined in Feb 2008 Hosted on SH123 12 posts Gave thanks: 0 Thanked 0 times	im still a bit worried about cpu >.< sorry. One last question: is it possible for me to get a warning when i'm close to my limit?

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