Request for a technical opinion about a plugin project...

Stewie87 · Post by **Stewie87** » Sun Jun 15, 2008 8:52 am

Hi to all, I have a question: is there any function that allows me to get the CPU usage percentage (or however CPU usage value)?
Because I gave a quick research to pspsdk but I didn't find it :(
Or, in alternative, exists a simple way to "calculate" it?

Thanks to all for attention and sorry for my bad english ;)

EDIT: function found, now:

Oki, I post here to avoid another topic :)

I have an idea but I'm not very "technical" about CPU frequency and use... so I would appreciate your opinion ^^
My idea is to make a plugin that "take" the CPU usage and set CPU frequency depending it! A CPU setting "on demand" xD

For example: CPU is on 222Mhz and the CPU usage is under 50%... so plugin set CPU frequency on 111Mhz. If CPU usage goes above 80 or 90% plugin set CPU frequency on 222Mhz back. And so on...

Well, this is my idea (in few words) :)
I ask you if this idea has sense (so if this is possible...) but especially if this method is dangerous for CPU (and PSP) life...

Thanks to all ^_^

Pirata Nervo · Post by **Pirata Nervo** » Sun Jun 15, 2008 9:24 am

to get cpu:
http://alek.dark-alex.org/pspsdkdocs/ps ... c03b9243b6

whistler · Post by **whistler** » Sun Jun 15, 2008 9:27 am

grep is your friend:)

grep Cpu /usr/local/pspdev/psp/sdk/include/*.h

that should list all the functions with cpu in the name. as for getting a usage percentage, i'm not sure there's a function for that

Stewie87 · Post by **Stewie87** » Sun Jun 15, 2008 9:41 am

Pirata Nervo wrote:to get cpu:
http://alek.dark-alex.org/pspsdkdocs/ps ... c03b9243b6

I know those functions, but I ask for a function that gives me the CPU usage and not the frequency...

Insert_witty_name · Post by **Insert_witty_name** » Sun Jun 15, 2008 9:53 am

Search.

http://forums.ps2dev.org/viewtopic.php?t=9912

Stewie87 · Post by **Stewie87** » Sun Jun 15, 2008 9:56 am

Insert_witty_name wrote:Search.

http://forums.ps2dev.org/viewtopic.php?t=9912

Lol, I searched for "CPU usage" and so that topic did not appear :P
Thank you very very much ^__^

Stewie87 · Post by **Stewie87** » Sun Jun 15, 2008 10:08 am

Oki, I post here to avoid another topic :)

I have an idea but I'm not very "technical" about CPU frequency and use... so I would appreciate your opinion ^^
My idea is to make a plugin that "take" the CPU usage and set CPU frequency depending it! A CPU setting "on demand" xD

For example: CPU is on 222Mhz and the CPU usage is under 50%... so plugin set CPU frequency on 111Mhz. If CPU usage goes above 80 or 90% plugin set CPU frequency on 222Mhz back. And so on...

Well, this is my idea (in few words) :)
I ask you if this idea has sense (so if this is possible...) but especially if this method is dangerous for CPU (and PSP) life...

Thanks to all ^_^

Pirata Nervo · Post by **Pirata Nervo** » Sun Jun 15, 2008 6:43 pm

@Stewie oh I misunderstood then, I see you edited your post explaining exactly what you want :p

whistler · Post by **whistler** » Mon Jun 16, 2008 12:00 am

Stewie87 wrote:Oki, I post here to avoid another topic :)

I have an idea but I'm not very "technical" about CPU frequency and use... so I would appreciate your opinion ^^
My idea is to make a plugin that "take" the CPU usage and set CPU frequency depending it! A CPU setting "on demand" xD

For example: CPU is on 222Mhz and the CPU usage is under 50%... so plugin set CPU frequency on 111Mhz. If CPU usage goes above 80 or 90% plugin set CPU frequency on 222Mhz back. And so on...

Well, this is my idea (in few words) :)
I ask you if this idea has sense (so if this is possible...) but especially if this method is dangerous for CPU (and PSP) life...

Thanks to all ^_^

its a good idea but its already been done. in cwcheat set the cpu frequency to -1 and the plugin will dynamically adjust the cpu frequency in relation to the cpu load

Stewie87 · Post by **Stewie87** » Mon Jun 16, 2008 12:14 am

whistler wrote:
Stewie87 wrote:Oki, I post here to avoid another topic :)

I have an idea but I'm not very "technical" about CPU frequency and use... so I would appreciate your opinion ^^
My idea is to make a plugin that "take" the CPU usage and set CPU frequency depending it! A CPU setting "on demand" xD

For example: CPU is on 222Mhz and the CPU usage is under 50%... so plugin set CPU frequency on 111Mhz. If CPU usage goes above 80 or 90% plugin set CPU frequency on 222Mhz back. And so on...

Well, this is my idea (in few words) :)
I ask you if this idea has sense (so if this is possible...) but especially if this method is dangerous for CPU (and PSP) life...

Thanks to all ^_^
its a good idea but its already been done. in cwcheat set the cpu frequency to -1 and the plugin will dynamically adjust the cpu frequency in relation to the cpu load

Really?! o.O
Well at least my was a good idea xD
Weltall, what algorithm do you use to calculate CPU usage? That suggested by insert_winny don't work in a VSH plugin...