Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Help with speeding up my working script to take less time - how to use more CPU usage for a script
Top Forums Shell Programming and Scripting Help with speeding up my working script to take less time - how to use more CPU usage for a script Post 303035928 by MadeInGermany on Sunday 9th of June 2019 04:04:13 PM
Old 06-09-2019
Even the shell becones faster if builtins are used: let the read command read the fields into variables, use $(( )) rather than expr, write the output file in one stream.
Code:
# set constants before the loop
DURA="86400"
cd "$INPUTDIR" || exit
for inp in *
do
  # the following code block has redirected stdin and stdout
  {
  # delete header line#1 
  read x
  # write header
  echo "TS;DURATION;SYSNM;DS_SYSNM;SYSTYPENM;OBJNM;SUBOBJNM;VALUE"
  while read TIMES x INTMF METRIC VALU MFDISP DEVC CNAME x
  do
    NON_MIL=$(( TIMES / 1000 ))
    EPO2DT=`date -d @${NON_MIL} '+%Y-%m-%d %H:%M:%S'`
    echo "$EPO2DT;$DURA;$DEVC;$INTMF;$METRIC;$VALU;$MFDISP;$CNAME"
  done
  } <"$inp"  >"$OUTPUTDIR/$inp"
  # after the block the files are closed
  \mv "$inp" "$DONEDIR"
done

This User Gave Thanks to MadeInGermany For This Post:
prvnrk
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Help with bash script - Need to get CPU usage as a percentage

I'm writing a bash script to log some selections from a sensors output (core temp, mb temp, etc.) and I would also like to have the current cpu usage as a percentage. I have no idea how to go about getting it in a form that a bash script can use. For example, I would simply look in the output of... (3 Replies)
Discussion started by: graysky
3 Replies

2. AIX

Script to identify high CPU usage processes

Hi Guys, I need to write a script capable of identifying when a high cpu utilitzation process. It sounds simple but we are on a AIX 5.3 environment with Virtual CPU's (VP's) and logical CPU's. Please any ideas or tips would be highly appreciated. Thanks. Harby. (6 Replies)
Discussion started by: arizah
6 Replies

3. Shell Programming and Scripting

shell script to alert cpu memory and disk usage help please

Hi all can any one help me to script monitoring CPU load avg when reaches threshold value and disk usage if it exceeds some % tried using awk but when df -h out put is in two different lines awk doesnt work for the particular output in two different line ( output for df -h is in two... (7 Replies)
Discussion started by: robo
7 Replies

4. HP-UX

Perl script limit cpu usage

Hi Experts, I am executing multiple instances(in parallel) of perl script on HP-UX box. OS is allocating substantial amount of CPU to these perl processes,resulting higher cpu utilization. Glance always shows perl processes are occupying majority of the CPU resource. It is causing slower... (2 Replies)
Discussion started by: sai_2507
2 Replies

5. Shell Programming and Scripting

Shell script for logging cpu and memory usage of a Linux process

I am looking for a way to log and graphically display cpu and RAM usage of linux processes over time. Since I couldn't find a simple tool to so (I tried zabbix and munin but installation failed) I started writing a shell script to do so The script file parses the output of top command through... (2 Replies)
Discussion started by: andy_dufresne
2 Replies

6. Shell Programming and Scripting

Shell script to calculate the max cpu usage from the main script

Hi All, I have a script which does report the cpu usuage, there are few output parameter/fields displayed from the script. My problem is I have monitor the output and decide which cpu number (column 2) has maximum value (column 6). Since the output is displayed/updated every seconds, it's very... (1 Reply)
Discussion started by: Optimus81
1 Replies

7. Shell Programming and Scripting

CPU usage script

Hello Friends, I am trying to create a shell script which will check the CPU utilization. I use command top to check the %CPU usage. It give s me below output Cpu states: CPU LOAD USER NICE SYS IDLE BLOCK SWAIT INTR SSYS 0 0.31 9.6% 0.0% 6.1% 84.3% 0.0% 0.0%... (3 Replies)
Discussion started by: Nakul_sh
3 Replies

8. Shell Programming and Scripting

Script for CPU usage -Linux

Hi all I was wondering if its possible to write a script to keep CPU usage at 90%-95%? for a single cpu linux server? I have a perl script I run on servers with multple cpu's and all I do is max all but one cpu to get into the 90'% utilised area. I now need a script that raises the CPU to... (4 Replies)
Discussion started by: sudobash
4 Replies

9. Linux

Ps command on cpu usage and time

Hi All, Am very new to Linux and unix ...need below help . need to list of process consuming more than 40% cpu and which are older than 10 days of a particular user .... Thanks V (4 Replies)
Discussion started by: venky456
4 Replies

10. Shell Programming and Scripting

Help with Shell script that monitors CPU Usage

I'm a newbie to shell scripting, I was given this script to modify. This script that monitors when CPU Usage is too high based off the top command. The comparison is not working as it should. Its comparing a decimal to a regualar interger. When it send me an email, it send an email and ignores the... (21 Replies)
Discussion started by: mhannor
21 Replies

LEARN ABOUT DEBIAN

giiremoveeventmask

giiSetEventMask(3)							GGI							giiSetEventMask(3)

NAME

       giiSetEventMask, giiGetEventMask, giiAddEventMask, giiRemoveEventMask - Set the types of events queued

SYNOPSIS

       #include <ggi/gii.h>

       int giiSetEventMask(gii_input_t inp, gii_event_mask evm);

       gii_event_mask giiGetEventMask(gii_input_t inp);

       int giiAddEventMask(gii_input_t inp, gii_event_mask evm);

       int giiRemoveEventMask(gii_input_t inp, gii_event_mask evm);

DESCRIPTION

       Calling	giiSetEventMask indicates to LibGII that only the types of events that match the specified event mask will be read by the applica-
       tion in subsequent giiEventPoll(3) or giiEventRead(3) calls.  LibGII can then save time and memory by skipping checks  and  not	allocating
       queues for events that will never be read out.  The default mask allows all events.

       giiAddEventMask and giiRemoveEventMask are macros that set or delete individual bits in the bitmask.
	      Note:  giiSetEventMask  is an advisory call.  For correct operation, the application still needs to pass a restrictive event mask to
	      the event reading functions.

RETURN VALUE

       giiSetEventMask, giiAddEventMask and giiRemoveEventMask return 0 on success or an gii-error(3) code otherwise.

       giiGetEventMask returns the currently set mask.

SEE ALSO

       gii_event_mask(3)

libgii-1.0.x							    2006-12-30							giiSetEventMask(3)
All times are GMT -4. The time now is 02:45 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy