Stress is a h/w test utility. It is a simple workload generator for POSIX systems. It imposes a configurable amount of CPU, memory, I/O, and disk stress on the system.
Step 1:
Installation Stress Package
A: Ubuntu 16
apt-get install stress
B: CentOS 6
yum install epel*
yum install stress*
C: CentOS 7
Downolad Stress RPM
cd /tmp
wget ftp://fr2.rpmfind.net/linux/dag/redhat/el7/en/x86_64/dag/RPMS/stress-1.0.2-1.el7.rf.x86_64.rpm
yum localinstall stress-1.0.2-1.el7.rf.x86_64.rpm
Or
rpm -ivh ftp://fr2.rpmfind.net/linux/dag/redhat/el7/en/x86_64/dag/RPMS/stress-1.0.2-1.el7.rf.x86_64.rpm
Step 2:
Below command to watch load average
watch uptime
Or
top
Or
htop
Step 3:
Open new terminal and run stress command
stress -c 4 -i 8 -m 8 --vm-bytes 256M -d 1 --hdd-bytes 10GB -t 300s
htop command output
stress -c 4 -i 4 -m 4 --vm-bytes 1024M -d 1 --hdd-bytes 10GB -t 300s
stress -c 4 -i 4 -m 4 --vm-bytes 256M -d 1 --hdd-bytes 10GB -t 300s
Stress : load
CPU = 4 cpu
I/O = 4
VM = 256MB
HDD = 10GB
top command output
Here :
-c, --cpu N spawn N workers spinning on sqrt()
-i, --io N spawn N workers spinning on sync()
-m, --vm N spawn N workers spinning on malloc()/free()
--vm-bytes B malloc B bytes per vm worker (default is 256MB)
-d, --hdd N spawn N workers spinning on write()/unlink()
--hdd-bytes B write B bytes per hdd worker (default is 1GB)
-t, --timeout N timeout after N seconds
See more option
stress --help
