Wireshark is one of the best open source network GUI packet analyzer available today. It is used to capture network packets and display the details of the packet data. Wireshark and tcpdump use libpcap to get live network data. It’s often more easy [...]
Monitoring
Sar Command in Linux with Examples
Sar command is used to produce statistical reports on a variety of resources including CPU usage, memory utilization, I/O devices consumption, network monitor, swap, and load averages. SAR stands for System Activity Reporter, very useful tools for any Linux administrator [...]
PRM - Process Resource Monitor for Linux
PRM is a CPU, memory, processes and run (elapsed) time resource monitor for Linux systems. It does this by monitoring the process table on a given system and matches process id's with set resource limits in the configuration file or per-process [...]
CPU Bottleneck - How To Use Vmstat, Mpstat and SAR Commands
One of the main functions the kernel or Operating System is Memory Management. When process try to access physical memory, if physical memory not free, than kernel move the inactive processes to virtual memory then it is called Paging. To know [...]
6 Commands to Monitor CPU Usage in Linux
CPU is core part the system and processes all the task. There are many methods to check the CPU performance on linux system. Most commonly used commands are top, ps, sar, iostat, mpstat and to check the daily CPU performance. [...]