To get a little specific, you can employ the grep command – a CLI tool for searching plain-text data for lines matching a regular expression. System activity reports can be generated from a logfile by using the atopsar command.Model name : Intel(R) Core(TM) i5-4210U CPU 1.70GHzįlags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm epb tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid xsaveopt dtherm ida arat pln ptsĪddress sizes : 39 bits physical, 48 bits virtual By default, the daily logfiles are preserved for 28 days. You can then import this data for analysis, using either a spreadsheet program or a custom tool like sargraph.Īn alternative is to use atop which is able to store raw counters in a file for long-term analysis on system level and process level. Sysstat will collect background CPU usage data every minute, saving it to /var/log/sysstat/. You can generate a real-time report with the following command: sar -u 1 3 You can modify this behavior by editing the sysstat crontab at /etc/cron.d/sysstat, or by changing rotation settings in the sysstat settings at /etc/sysstat/sysstat. Next, enable it by editing /etc/default/sysstat and setting “ENABLED” to true.ĭoing so monitors your system and generates a report every 10 minutes, rotating them out after a week.

Linux view cpu usage