http://ocw.cs.pub.ro/courses/ 2026-05-27T11:08:43+03:00 http://ocw.cs.pub.ro/courses/ http://ocw.cs.pub.ro/courses/lib/tpl/arctic/images/favicon.ico text/html 2026-03-30T22:15:56+03:00 http://ocw.cs.pub.ro/courses/ep/labs/05/contents/tasks/ex1?rev=1774898156&do=diff 01. [20p] iostat & iotop [10p] Task A - Monitoring the behaviour with Iostat * -x for extended statistics * -d to display device stastistics only * -m for displaying r/w in MB/s $ iostat -xdm $ iostat -xdm -p sda * Run iostat -x 1 5. * Considering the last two outputs provided by the previous command, calculate the efficiency of IOPS for each of them. Does the amount of data written per I/O increase or decrease? text/html 2026-03-30T22:16:39+03:00 http://ocw.cs.pub.ro/courses/ep/labs/05/contents/tasks/ex2?rev=1774898199&do=diff 02. [20p] RAM disk Linux allows you to use part of your RAM as a block device, viewing it as a hard disk partition. The advantage of using a RAM disk is the extremely low latency (even when compared to SSDs). The disadvantage is that all contents will be lost after a reboot. text/html 2026-03-31T02:50:40+03:00 http://ocw.cs.pub.ro/courses/ep/labs/05/contents/tasks/ex3?rev=1774914640&do=diff 03. [30p] bpftrace The extended Berkley Packet Filter (eBPF) is an under-represented technology in CS curricula that has been around since 1994 but has served multiple purposes along the years. As a tl;dr, what you need to know about eBPF is that it's a purely virtual instruction set, meaning that no hardware implements it. eBPF programs can be uploaded to the kernel, where they are JIT translated to native bytecode and become callable by other kernel components. text/html 2026-03-31T14:00:01+03:00 http://ocw.cs.pub.ro/courses/ep/labs/05/contents/tasks/ex4?rev=1774954801&do=diff 04. [30p] GPU Monitoring a. [0p] Clone Repository and Build Project Clone the repository containing the tasks and change to this lab's task 04. Follow the instructions to install the dependencies and build the project from the README.md. $ git clone https://github.com/cs-pub-ro/EP-labs.git $ cd EP-labs/lab_05/task_04 text/html 2026-03-03T10:55:39+03:00 http://ocw.cs.pub.ro/courses/ep/labs/05/contents/tasks/ex5?rev=1772528139&do=diff 05. [10p] Feedback Please take a minute to fill in the feedback form for this lab.