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Full Discussion: Expect help needed .. can i do this ?
Top Forums Shell Programming and Scripting Expect help needed .. can i do this ? Post 302796605 by ExpectHelpNeede on Friday 19th of April 2013 11:45:26 PM
Old 04-20-2013
corona ,
funnily enough thats exactly what i am trying to do ..automate the manual process
i run a server which spikes the cpu to 100%
but you can reduce it by setting a value
which can be gotten using a command
so my expect script "should " loolk like this

Code:
#!/usr/bin/expect -f
spawn telnet server port
expect "started"
send "get value server"
// this when i get the response back , and i need to find the lines , returned with a * in the beginning
cpu=getcpu 
while  cpu > 90 
do
send "value1 "
done


once it gets the correct value applied , the cpu drops to 10-15 %
which is what i need to be done via an expect script , i can do it manually like i said

thanx


this is the code for my gecpu
Code:
#!/bin/bash
read cpu a b c previdle rest < /proc/stat
prevtotal=$((a+b+c+previdle))
sleep 0.5
read cpu a b c idle rest < /proc/stat
total=$((a+b+c+idle))
CPU=$((100*( (total-prevtotal) - (idle-previdle) ) / (total-prevtotal) ))
echo $CPU
exit $CPU

Last edited by Corona688; 04-22-2013 at 04:33 PM..
 

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LEARN ABOUT NETBSD

cpuset_create

CPUSET(3)						   BSD Library Functions Manual 						 CPUSET(3)

NAME

     cpuset_create, cpuset_destroy, cpuset_zero, cpuset_set, cpuset_clr, cpuset_isset, cpuset_size -- dynamic CPU sets

SYNOPSIS

     #include <sched.h>

     cpuset_t *
     cpuset_create(void);

     void
     cpuset_destroy(cpuset_t *set);

     void
     cpuset_zero(cpuset_t *set);

     int
     cpuset_set(cpuid_t cpu, cpuset_t *set);

     int
     cpuset_clr(cpuid_t cpu, cpuset_t *set);

     int
     cpuset_isset(cpuid_t cpu, const cpuset_t *set);

     size_t
     cpuset_size(const cpuset_t *set);

DESCRIPTION

     This section describes the functions used to create, set, use and destroy the dynamic CPU sets.

     This API can be used with the POSIX threads, see pthread(3) and affinity(3).

     The ID of the primary CPU in the system is 0.

FUNCTIONS

     cpuset_create()
	      Allocates and initializes a clean CPU-set.  Returns the pointer to the CPU-set, or NULL on failure.

     cpuset_destroy(set)
	      Destroy the CPU-set specified by set.

     cpuset_zero(set)
	      Makes the CPU-set specified by set clean, that is, memory is initialized to zero bytes, and none of the CPUs set.

     cpuset_set(cpu, set)
	      Sets the CPU specified by cpu in set.  Returns zero on success, and -1 if cpu is invalid.

     cpuset_clr(cpu, set)
	      Clears the CPU specified by cpu in the CPU-set set.  Returns zero on success, and -1 if cpu is invalid.

     cpuset_isset(cpu, set)
	      Checks if CPU specified by cpu is set in the CPU-set set.  Returns the positive number if set, zero if not set, and -1 if cpu is
	      invalid.

     cpuset_size(set)
	      Returns the size in bytes of CPU-set specified by set.

SEE ALSO

     affinity(3), pset(3), sched(3), schedctl(8), kcpuset(9)

HISTORY

     The dynamic CPU sets appeared in NetBSD 5.0.

BSD
								 November 2, 2011							       BSD
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