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How to fetch cpu utilization of a particular process in linux

By : Michal Fůs
Date : October 16 2020, 11:12 AM
it helps some times I have used following command to fetch the CPU utilization of a process. It is giving result, but it is not coming out. I have used following command. , Use top's batch mode, eg.
code :

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How to limit process memory utilization on Linux (e.g. using BSD::Resource)

By : user1141461
Date : March 29 2020, 07:55 AM
This might help you When you are developing code, it's easy to have your Perl program run away and consume all of memory. The machine will grind to a halt, until the program exhausts memory and dies. You can prevent this problem:
Use this code:
code :
use BSD::Resource;
setrlimit(get_rlimits()->{RLIMIT_VMEM}, 1_000_000_000, -1) or die;
use limit;

How to calculate CPU utilization of a process & all its child processes in Linux?

By : swathi savitha
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further You can find this information in /proc/PID/stat where PID is your parent process's process ID. Assuming that the parent process waits for its children then the total CPU usage can be calculated from utime, stime, cutime and cstime:

how to check I/O utilization of a process in Linux using commands

By : Dinesh
Date : March 29 2020, 07:55 AM
Does that help I want to know the i/o utilization of every process using commands. , You can monitor disk I/O for processes with
iotop htop btrace
code :
[home ~]# cat /proc/24328/io
rchar: 5532416
wchar: 67578
syscr: 6548
syscw: 249
read_bytes: 0
write_bytes: 20480
cancelled_write_bytes: 0

Need Mysql Zabbix data for CPU utilization, memory utilization, Disk space utilization for creating ML profile

By : user2555845
Date : March 29 2020, 07:55 AM
I wish this help you Zabbix data is stored in the Mysql database in various tables (history and trends, differentiated by data type). The difference between history and trend is described here.
I strongly advise against the direct use of mysql, because of complexity and compatibility. The best course of action is through the API (history.get and trend.get) to extract the data and feed it to your ML.

java process creating tmp/tmp* files that are in deleted state but increasing the disk utilization in linux VM

By : user3153241
Date : March 29 2020, 07:55 AM
wish help you to fix your issue The command used to run the java process in linux VM involved "nohup" and "tee" for stdout. The output in the questionable /tmp/ was dependent on the data being received by the process (which was quite huge) and due to this the logs started getting printed on the /tmp/ as well as the log directory configured in property files. Simply redirecting the stdout and stderr of java process solved the issue.
example of correct command :
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