On 06/05/2014 11:32 AM, Carlos E. R. wrote:
programs to do. Systemd is NOT monolithic any more than the BASH
shell is monolithic. The original shell of the V7 era was minimalist and the And systemd is not a single big binary, it is divided in several modules. I don't know how many.
|> USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND |> root 1 0.0 0.0 197828 5020 ? Ss May24 0:22 /sbin/init
Perhaps you should consider a few other things that are shown there. There is a lot of 'special case' code in systemd, such as the backward compatibility that lets it deal with 'init' style commands. This being a virtual memory system that code isn't loaded unless its needed :-) That is reflected by the very low value in RSS. There are many programs like that. Perhaps they have many modules that are not often used. Darktable is one example of that. Perhaps they have complex initialization odes - "use once and throw away". In such cases the virtual memory size doesn't matter. The second thing of note is because systemd is really a dispatcher, and one that does most of its work at the start of things (boot being one of those 'things') it is not consuming much cpu. In many ways systemd is like the original Bourne shell. By that I mean the shell that had no input from the C-shell, none of the user-interaction and command line editing, history and other features in BASH. It is a parser and dispatcher. It relies on external programs to do its work, just like in the sysvinit script the shell scripts relied on external programs to slice and dice and carry out many functions. The sysvinit script could _almost_ have be run with the old V7 shell since they don't need the user interaction extensions. Of course BASH, like the Korn shell, has functional extensions such as pattern matching (so it doesn't always need to run 'grep') and arithmetic (so it doesn't need to run 'eval') and 'echo is also built in. The main difference is that that systemd doesn't have all it uses built in, and that the control 'scripts' it interprets are declarative rather than procedural -- they are termed units. But both are interpreters and dispatchers. By comaprison PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 31253 anton 20 0 1585384 367284 39524 S 12.57 9.206 37:54.22 thunderbird-bin 31255 anton 20 0 1719832 701064 52840 S 6.946 17.57 74:22.50 firefoxWrote31050 anton 20 0 359388 23156 17544 S 0.000 0.580 0:00.21 kdeinit4Wrote31072 anton 20 0 531424 22188 13132 S 0.000 0.556 0:02.05 ksmserverWrote31115 anton 20 0 682716 27644 17204 S 0.000 0.693 0:00.70 kmix 31126 anton 20 0 363112 35808 16160 S 0.000 0.898 0:01.03 basket 31135 anton 20 0 14612 3028 1584 S 0.000 0.076 0:00.04 bash Compared to the resident parts of firefox and thunderbird items such as systemd and BASH are insignificant. If you want to make improvements or fret about consumption then there are areas where effort will have more effect than getting a later over systemd. -- /"\ \ / ASCII Ribbon Campaign X Against HTML Mail / \ -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org