Solaris 10 zone config for one application

I have a Solaris 10 x86 server with 48GB of memory and 8 CPUs (although I believe hyperthreading is turned on because prsinfo shows 16 CPUs). The server is dedicated to one big application which spawns many processes/threads. Performance is extremely important for this application so I need to give it all of the resources possible.
I tried just allowing the application to run in the global zone because there's nothing else it will interfere with (aside from the OS) but I couldn't get it to utilize all of the CPUs this server has. My guess is the global zone is only designed for running the OS and playing traffic cop for the other zones, so it's not suited for running applications. Is that correct?
So my question is, assuming I do need to setup a dedicated zone for this monster application, how do I configure it to dedicate all CPUs and all memory (or as close to all of it as I can get)?
Also, is there some default limit on how much CPU % a process can have? Because I have tried getting one process to utilize 100% of a CPU and can't get anywhere near that... unless prstat doesn't display per CPU utilization information.
Any help would be appreciated.

Kupacmac wrote:
I have a Solaris 10 x86 server with 48GB of memory and 8 CPUs (although I believe hyperthreading is turned on because prsinfo shows 16 CPUs). The server is dedicated to one big application which spawns many processes/threads. Performance is extremely important for this application so I need to give it all of the resources possible.
I tried just allowing the application to run in the global zone because there's nothing else it will interfere with (aside from the OS) but I couldn't get it to utilize all of the CPUs this server has. My guess is the global zone is only designed for running the OS and playing traffic cop for the other zones, so it's not suited for running applications. Is that correct?No. Unless you have dedicated CPUs to zones (so they are not available to the global zone), or unless you're running under a project which restricts CPU usage, the global zone has access to all virtual CPUs.
Can you see your process spawning threads? How much CPU is it able to use?
Also, is there some default limit on how much CPU % a process can have? Because I have tried getting one process to utilize 100% of a CPU and can't get anywhere near that... unless prstat doesn't display per CPU utilization information.One thread can only use one CPU. So you'd either need to run 16 single threaded processes, or your process would need to spawn 16 threads that were CPU-heavy. No, there's no default limit on a process.
Darren

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