03-11-2014
That I understand..
OK on HP-UX when I had this sort of issues, I used to dedicate a CPU to that application or user ... he would find himself as if on a single cpu box... only it will run at the speed of the cpu...
kernel params, to allow big - long processes to use all the cpu, I used to change the timeslice, but this is very tricky : You fall on badly written code, and you have lost control of your server... So although this can accelerate your application it has some terrible side effects, because the parameter affects all the system... I used to fine tune a kernel specificly for batches, and compile a kernel for that purpose, then its just a question of swaping kernel and reboot...
You have to accept the idea that 2 CPU 1GHz cannot do 1CPU@2GHz, and so will have to tune what you can, to reduce I/O , disk access etc.. and to remember the better is the ennemy of Good...
You are left analysing why you have performance issues and try to find workarounds, and I tell you there are
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sizer(8) System Manager's Manual sizer(8)
Name
sizer - a program that sizes system hardware
Syntax
/etc/sizer [ options ]
Description
The program reports various items of information about a kernel file and the running system. It is also used to create a system configura-
tion file in the doconfig command.
Options
-b Create a boot command file for the current system disk. The program creates the appropriate and command files in These files can then
be used to update the systems console media. This only applies for VAX 8600, VAX 780, VAX 6200, and VAX 3400 cpus. This also applies
for the VAX 750 and VAX 8200 only if the system disk is connected to an HSC.
-c Return the CPU type of the running cpu.
-t timezone
Use timezone in the config file.
-wt Returns the workstation display type.
-wu Returns the workstation display units.
-k image
Use the indicated kernel file instead of This is useful when the running system is not or you wish information about a system that is
not running.
-n filename
Creates a configuration file. The system must be running the kernel unless the option is used. The option creates a configuration
file in and also a file required for called
NOTE: The user should run to build a new kernel.
-r Return only the name of the root device and partition.
-s Return only the CPU subtype of the running cpu. This only applies to VAX cpus. It returns following values for the following cpus:
Returned
Value CPU
11 VAX8800
10 VAX8700
9 VAX8550
8 VAX8500
6 VAX8300
5 VAX8200
4 VAXstation/MVAX 2000/3100
3 VAX60
1 MVAXII, VAX3x00, VAX62xx
The value 0 is returned for all other cpu types.
Files
See Also
config(8), doconfig(8)
ULTRIX Advanced Installation Guide
sizer(8)