![dell-r910](http://itservice-bg.net/wp-content/uploads/2016/09/dell-r910.jpg)
![dellr910](http://itservice-bg.net/wp-content/uploads/2016/09/dellr910.png)
CPU load test
openssl speed -multi $(cat /proc/cpuinfo | grep processor | wc -l) |
openssl speed -multi $(cat /proc/cpuinfo | grep processor | wc -l)
![cpu100](http://itservice-bg.net/wp-content/uploads/2016/09/cpu100.png)
CPU and RAM stress test
sudo apt-get install stress |
sudo apt-get install stress
stress --vm 32 --vm-bytes 12800M |
stress --vm 32 --vm-bytes 12800M
![cpu100-2](http://itservice-bg.net/wp-content/uploads/2016/09/cpu100-2.png)
RAID test – data and speed
![stress3](http://itservice-bg.net/wp-content/uploads/2016/09/stress3.png)
Stress RAID 5 storage
stress --io 10 --hdd 10 --timeout 30s --verbose |
stress --io 10 --hdd 10 --timeout 30s --verbose
![stress_hdd](http://itservice-bg.net/wp-content/uploads/2016/09/stress_hdd.png)
RAID – read and write speed real-time
sudo apt-get install iotop |
sudo apt-get install iotop
![iotop](http://itservice-bg.net/wp-content/uploads/2016/09/iotop.png)
Write speed
dd if=/dev/zero of=./largefile bs=1M count=1024 |
dd if=/dev/zero of=./largefile bs=1M count=1024
![dd](http://itservice-bg.net/wp-content/uploads/2016/09/dd.png)
Read speed
Run the following command to clear the memory cache
sudo sh -c "sync && echo 3 > /proc/sys/vm/drop_caches" |
sudo sh -c "sync && echo 3 > /proc/sys/vm/drop_caches"
Now read the file which was created in write test:
dd if=./largefile of=/dev/null bs=4k |
dd if=./largefile of=/dev/null bs=4k
![dd_read](http://itservice-bg.net/wp-content/uploads/2016/09/dd_read.png)