BEAUTY AND PLAY
WHAT IS SLAB ALLOCATION ? Slab allocation is a memory management mechanism intended for the efficient memory allocation of kernel objects. It eliminates fragmentation caused by allocations and deallocations. The technique is used to retain allocated memory that contains a data object of a certain type for reuse upon subsequent allocations of objects of the …
Continue reading “slabinfo – kernel slab allocator statistics”
https://swisdev.oracle.com/_files/What-Is-ADI.html
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/resource_management_guide/ch01
https://rhelblog.redhat.com/2015/07/07/whats-next-for-containers-user-namespaces/
https://www.redhat.com/en/topics/containers/whats-a-linux-container
ABOUT pstree pstree is a Linux command that shows the running processes as a tree. It is used as a more visual alternative to the ps command. The root of the tree is either init or the process with the given pid. It can also be installed in other Unix systems. TYPICAL COMMANDLINE SESSION [bash] …
Continue reading “pstree command usage example with process id as first argument”
https://askubuntu.com/questions/153976/how-do-i-get-the-parent-process-id-of-a-given-child-process https://superuser.com/questions/150117/how-to-get-parent-pid-of-a-given-process-in-gnu-linux-from-command-line/544696#544696
$ps -e “kworker$” error: unknown sort specifier Usage: ps [options] Try ‘ps –help ‘ or ‘ps –help ‘ for additional help text. For more details see ps(1). $ps -ef | grep “^daemon” daemon 639 1 0 May04 ? 00:00:00 /usr/sbin/atd -f $ps -ef | grep “^rtkit” rtkit 1245 1 0 May04 ? 00:00:00 /usr/lib/rtkit/rtkit-daemon $ps …
Continue reading “Search for a pattern at the beginning of a line using grep”
https://www.quora.com/in/Why-does-%E2%80%9Cexit-status-0%E2%80%9D-mean-success