community/sysstat
    a collection of performance monitoring tools (iostat,isag,mpstat,pidstat,sadf,sar)

2022
LearnLinuxTV - Linux Essentials - The sar Command 0:00 of 8:39
    https://www.youtube.com/watch?v=D5fMGFZoFT8
2020
https://www.linuxtechi.com/generate-cpu-memory-io-report-sar-command/
https://www.computerhope.com/unix/usar.htm

need:
sar -b -r -u -o f.sar 1 600
sar -b -r -P ALL -o f.sar 1 600

sar
    -b          I/O and transfer rate statistics
        [A_IO]
                interesting colums: tps, rtps, wtps

    -r [ALL]    memory utilization statistics
        [A_MEMORY]
                interesting collection: kbmemused

    -u [ALL]    CPU utilization statistics
        [A_CPU]
                utilization = (user + nice + system)
                interesting collection: %user, %usr, %nice
    -d
                Block devices statistics [A_DISK]

    -P <core-num>
                ... cpu for given core

    -S          swap space utilization statistics
        (kbswpfree kbswpused  %swpused  kbswpcad   %swpcad)
    -W          swapping statistics
        [A_SWAP]

    -P <pid|ALL>
                ???

    -o <file-to-save>