Sponsored Content
Top Forums UNIX for Beginners Questions & Answers 1000 sleep commands on a Linux Server impact? Post 303035495 by MadeInGermany on Sunday 26th of May 2019 01:48:03 PM
Old 05-26-2019
The sleep commands itself do not consume significant resources. The sleeping commands (i.e. the shell) take some memory of course (where a bash consumes more than a dash).
And - if they all wake up at the same time then a big CPU peak will occur.
 

7 More Discussions You Might Find Interesting

1. Solaris

Remove Server Sleep Mode

Hi All, Need some help here. Can anyone tell me how to set or which start up script to edit in order not to set the server to sleep mode after a while of inactivity. My Unix server will go to sleep mode and then i always end up with a OK Prompt and have to reset the server. My Server is a V120... (16 Replies)
Discussion started by: alvintai
16 Replies

2. UNIX for Dummies Questions & Answers

unix sleep and date commands

please help me to fix my script trying to use sleep 2 minutes while the system is sleeping i want to print out same message every 5 seconds thanks t=`date +%S` while do sleep 5 echo "this program will end in 2 minute" done (1 Reply)
Discussion started by: fanco
1 Replies

3. Hardware

Deskjet 1000 hp- commands

I have installed an HP Deskjet 1000 j110 on my Slackware system (13.37). I am trying to print more than 1 page out of 2 or more. No luck so far. Found that there are about 30 odd commands like hp-linefeedcal, -print, -pkservice, -printsettings, -devicesettings, -systray, -check, -align, and... (0 Replies)
Discussion started by: slak0
0 Replies

4. Shell Programming and Scripting

Script to pull uid greater than 1000 from remote server

Hello, I am trying to get UID # greater than 1000 from all linux server, I tried this script getting this error message, someone please suggest. $for i in `cat hostlist.0709.org` ; do ssh -t $i 'awk -F':' "{ if($3 >= 1000) print $0 }" /etc/passwd ' >> output ; done $ cat output hostname1... (4 Replies)
Discussion started by: bobby320
4 Replies

5. Shell Programming and Scripting

Running Commands on a Remote Linux Server over SSH

Hello, I'm trying to create a ksh script to ssh to a remote server, enter the password and a couple commands. For security reasons I have changed the login, password and ip in my example. #!/bin/ksh ssh -t -t username@12.5.5.3 << EOF password cd bin pwd EOF When I run it. It... (5 Replies)
Discussion started by: seekryts15
5 Replies

6. Red Hat

Red Hat 6.5: Leap Day 29.02.2016 Impact on the Linux Machine

Hi Experts Is there any impact on the Linux Machine with respect to the Leap Day {29.02.2016}, which would be introduced next year as part of the Leap Year {2016}. From my application scope, I see no problems. Please comment. Regards Navkanwal (5 Replies)
Discussion started by: navkanwal
5 Replies

7. UNIX for Beginners Questions & Answers

BSD Unix Toolbox: 1000+ Commands for FreeBSD, OpenBSD, and NetBSD

Usually when I on the evening go to bed I take some interesting book with me. I read it for a while to get me down to sleep. Probably most people seek information from the Nett by googleing but I am so oldfashioned I prefer a real book ;) But what a book. The one I found and ordered is BSD Unix®... (0 Replies)
Discussion started by: fossiili
0 Replies
TIME_SLEEP_UNTIL(3)							 1						       TIME_SLEEP_UNTIL(3)

time_sleep_until - Make the script sleep until the specified time

SYNOPSIS
bool time_sleep_until (float $timestamp) DESCRIPTION
Makes the script sleep until the specified $timestamp. PARAMETERS
o $timestamp - The timestamp when the script should wake. RETURN VALUES
Returns TRUE on success or FALSE on failure. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.3.0 | | | | | | | This function is now available on Windows plat- | | | forms. | | | | +--------+---------------------------------------------------+ ERRORS
/EXCEPTIONS If the specified $timestamp is in the past, this function will generate a E_WARNING. EXAMPLES
Example #1 A time_sleep_until(3) example <?php //returns false and generates a warning var_dump(time_sleep_until(time()-1)); // may only work on faster computers, will sleep up to 0.2 seconds var_dump(time_sleep_until(microtime(true)+0.2)); ?> NOTES
Note All signals will be delivered after the script wakes up. SEE ALSO
sleep(3), usleep(3), time_nanosleep(3), set_time_limit(3). PHP Documentation Group TIME_SLEEP_UNTIL(3)
All times are GMT -4. The time now is 06:40 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy