Allow process to take up more CPU and mem

[Coderifous]

On solaris, how do I change the default restrictions on how muchn resources anygiven process is allotted? I'd like to process a huge sort, and want it done ASAP. Currently the sort can only use 25% of the CPU and not that many megs of ram.

Anyone know the way to increase?

And yes - I have root access.

--jim

 

[drucej31]

You can use "nice" to increase process priority over other running OS processes..

Do a "man nice" for further details.

Good luck.

 

[Butterfly123]

YEah. nice command could change the priority of a process and allow it to use cpu/mem on a priority basis, resulting into more usage of those.

Regds,

- Hemant
NSIG,
Satyam Computer Services Ltd

 

[red3kgto]

I don't think changing the nice value will make any difference. If your process only takes 25% CPU and the other 75% is idle, increasing the nice won't make any difference as your process is getting all the CPU it needs. What is more likely happening is that your process is I/O bound - if you are doing a large sort it is probably accessing the disk a lot which is limiting the amount of CPU it needs.

 

[shaw123]

We have 6 processor Sun Solarish Machine. It takes more time
to run same programme compare to a single processor machine.
Please tell me how can I use the multiproceesor sun solaris?

 

[jad]

learn to program with multithreaded code ...
a thread can only use one CPU at a time ... if you have code which is only single threaded then it will only ever run on one CPU.

 

[jimbopalmer]

and be sure your process is CPU bound, some problems will block on disk access, adding multithreading will not speed them up (much) others are compute intensive and will be 6 times faster. all depends on what you are computing.


(payroll uses 6 easy, no one's check depends on anyone elses check, G/L is tougher as 60% of all write transactions hit one account in my shop (inventory) so a single disk block is my limiting factor) I tried to remain child-like, all I acheived was childish.