There can be many instances of a application without being related in any way (parent and children) so niceness won't be inherited. I want like all instances of foo to run with a nice value of -15 without using any wrappers. Those .desktop files must be edited every time I install a new version of Chrome. Once I create a timer, using the section [Crontab] (let's forget the old name of [Timer]) from a .service file, no more editing will be needed. But that's just one example.
On Fri, Jul 8, 2016 at 5:39 PM, <systemd-devel-requ...@lists.freedesktop.org > wrote: > Send systemd-devel mailing list submissions to > systemd-devel@lists.freedesktop.org > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.freedesktop.org/mailman/listinfo/systemd-devel > or, via email, send a message with subject or body 'help' to > systemd-devel-requ...@lists.freedesktop.org > > You can reach the person managing the list at > systemd-devel-ow...@lists.freedesktop.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of systemd-devel digest..." > > > Today's Topics: > > 1. Re: Adding a Timer section to .service files (Reindl Harald) > 2. Re: Adding a Timer section to .service files (Michał Zegan) > 3. Re: Adding a Timer section to .service files (Mantas Mikulėnas) > 4. Re: Adding a Timer section to .service files (Tomasz Torcz) > 5. Re: Adding a Timer section to .service files (One Infinite Loop) > 6. Re: Adding a Timer section to .service files (Reindl Harald) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 8 Jul 2016 15:44:22 +0200 > From: Reindl Harald <h.rei...@thelounge.net> > To: systemd-devel@lists.freedesktop.org > Subject: Re: [systemd-devel] Adding a Timer section to .service files > Message-ID: <d70c95a9-f8ac-b1bd-cb25-8348d231e...@thelounge.net> > Content-Type: text/plain; charset="utf-8"; Format="flowed" > > > > Am 08.07.2016 um 15:35 schrieb One Infinite Loop: > > A few usecases: > > 1) I want to delete specific files once a day > > what is the problem? > > > 2)I want to free RAM using sync command and `echo 3 > > > /proc/sys/vm/drop_caches` every 15 seconds > > besides it's stupid - what is the problem? > > > 3)I want to make sure certain processes always run using a specific nice > > value like -15. I know control groups are invented but it's not the same > > thing. > > what is the problem > > > I know crontab was invented too but I wanna learn only one syntax: > > systemd syntax. > > how does that change the fact that it would be broken by design to have > a timer-section which is implicit active while the unit is disabled > which is the reason you have both and why don't you just learn it? > > > I don't know how to quote and how to reply because it's my first time > > when I use a mailing list > > DAMNED: > it has nothing to do with mailing lists and when you don't know what > quoting means, even not when compare the mails of others and yours which > are only contain your response but no part of the previous communication > go and make your homework first by learn to use your mailclient since > that is even worser than top-posting with full-quotes > > *you really* believe somebody is interested enough that he seeks for > your previous mails and *guess* to which person you replied at all when > there where more then one response since your last mail? > > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: signature.asc > Type: application/pgp-signature > Size: 181 bytes > Desc: OpenPGP digital signature > URL: < > https://lists.freedesktop.org/archives/systemd-devel/attachments/20160708/cef8d2df/attachment-0001.sig > > > > ------------------------------ > > Message: 2 > Date: Fri, 8 Jul 2016 15:42:45 +0200 > From: Michał Zegan <webczat_...@poczta.onet.pl> > To: systemd-devel@lists.freedesktop.org > Subject: Re: [systemd-devel] Adding a Timer section to .service files > Message-ID: <24622666-ad6f-3e16-1d4d-4e4e0a708...@poczta.onet.pl> > Content-Type: text/plain; charset="utf-8" > > One thing to say: I heard, at least once, that systemd's timer are more > complicated because in order to make a timer you need two files instead > of creating one, especially in comparison to cron where you need just > one line although I always forget the order of fields. I would say a > timer section in the service file could be a nice shortcut to create > timers for services quickly. > > W dniu 08.07.2016 o 15:14, Reindl Harald pisze: > > > > > > Am 08.07.2016 um 15:11 schrieb One Infinite Loop: > >> There are cases when you don't need .timer files but only a [Timer] > >> section. With a well written manual page, systemd users will understand > >> why is useful to have a [Timer] section inside a .service file > > > > FIRST: learn to quote in email > > > > second: you need to explain the usecases very well > > third: a good design don't require read manpages all the time > > > > > > > > _______________________________________________ > > systemd-devel mailing list > > systemd-devel@lists.freedesktop.org > > https://lists.freedesktop.org/mailman/listinfo/systemd-devel > > > > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: signature.asc > Type: application/pgp-signature > Size: 510 bytes > Desc: OpenPGP digital signature > URL: < > https://lists.freedesktop.org/archives/systemd-devel/attachments/20160708/3bbdd3fc/attachment-0001.sig > > > > ------------------------------ > > Message: 3 > Date: Fri, 8 Jul 2016 17:06:54 +0300 > From: Mantas Mikulėnas <graw...@gmail.com> > To: One Infinite Loop <6po...@gmail.com> > Cc: Systemd <systemd-devel@lists.freedesktop.org> > Subject: Re: [systemd-devel] Adding a Timer section to .service files > Message-ID: > <CAPWNY8WXu6khfo4gkRqJ2gz2-rd2Vqm7tacqFMeuXMrXWA3S= > a...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > On Fri, Jul 8, 2016 at 4:35 PM, One Infinite Loop <6po...@gmail.com> > wrote: > > > A few usecases: > > 1) I want to delete specific files once a day > > > > The existing cronjobs and .timer units work well enough for that. Also, > systemd even ships with a predefined daily systemd-tmpfiles-clean.timer, > see the "r" and "R" types in `man tmpfiles.d`. > > > > 2)I want to free RAM using sync command and `echo 3 > > > /proc/sys/vm/drop_caches` every 15 seconds > > > > Why would you do that? There are better ways to make a computer slower. > > > > 3)I want to make sure certain processes always run using a specific nice > > value like -15. I know control groups are invented but it's not the same > > thing. > > > > That's a service option. It's not related to timers. > > I don't know how to quote and how to reply because it's my first time when > > I use a mailing list. > > > > Surely not the first time using Gmail though. Press 'a' or click "Reply to > all". > > -- > Mantas Mikulėnas <graw...@gmail.com> > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > https://lists.freedesktop.org/archives/systemd-devel/attachments/20160708/7cb225ce/attachment-0001.html > > > > ------------------------------ > > Message: 4 > Date: Fri, 8 Jul 2016 16:12:19 +0200 > From: Tomasz Torcz <to...@pipebreaker.pl> > To: systemd-devel@lists.freedesktop.org > Subject: Re: [systemd-devel] Adding a Timer section to .service files > Message-ID: <20160708141218.ga558...@mother.pipebreaker.pl> > Content-Type: text/plain; charset=us-ascii > > > > Could you please stop breaking threads? Every reply you send starts > a new thread, while they all belong to one mail thread. > > -- > Tomasz Torcz "Funeral in the morning, IDE hacking > xmpp: zdzich...@chrome.pl in the afternoon and evening." - Alan Cox > > > > ------------------------------ > > Message: 5 > Date: Fri, 8 Jul 2016 17:21:37 +0300 > From: One Infinite Loop <6po...@gmail.com> > To: Mantas Mikulėnas <graw...@gmail.com> > Cc: Systemd <systemd-devel@lists.freedesktop.org> > Subject: Re: [systemd-devel] Adding a Timer section to .service files > Message-ID: > <CALGQnGDG5i_Fr9PqPBNxwdJ3YtRWsf= > fm2hjob4qge_io3a...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > I want crontab gone and I want to delete specific files once a day and 6 > minutes after I opened my computer. > > My Ubuntu 16.04 runs just fine, thanks for your concern. > > I want like my browser processes, for example, to run at a nice value of > -15. That's why I want to run '/usr/bin/zsh -c '/usr/bin/renice -15 -p > $(/usr/bin/pgrep -f /opt/google/chrome/chrome)'` every 15 seconds, for > example. > > On Fri, Jul 8, 2016 at 5:06 PM, Mantas Mikulėnas <graw...@gmail.com> > wrote: > > > On Fri, Jul 8, 2016 at 4:35 PM, One Infinite Loop <6po...@gmail.com> > > wrote: > > > >> A few usecases: > >> 1) I want to delete specific files once a day > >> > > > > The existing cronjobs and .timer units work well enough for that. Also, > > systemd even ships with a predefined daily systemd-tmpfiles-clean.timer, > > see the "r" and "R" types in `man tmpfiles.d`. > > > > > >> 2)I want to free RAM using sync command and `echo 3 > > >> /proc/sys/vm/drop_caches` every 15 seconds > >> > > > > Why would you do that? There are better ways to make a computer slower. > > > > > >> 3)I want to make sure certain processes always run using a specific nice > >> value like -15. I know control groups are invented but it's not the same > >> thing. > >> > > > > That's a service option. It's not related to timers. > > > > I don't know how to quote and how to reply because it's my first time > when > >> I use a mailing list. > >> > > > > Surely not the first time using Gmail though. Press 'a' or click "Reply > to > > all". > > > > -- > > Mantas Mikulėnas <graw...@gmail.com> > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > https://lists.freedesktop.org/archives/systemd-devel/attachments/20160708/b197e66d/attachment-0001.html > > > > ------------------------------ > > Message: 6 > Date: Fri, 8 Jul 2016 16:39:32 +0200 > From: Reindl Harald <h.rei...@thelounge.net> > To: systemd-devel@lists.freedesktop.org > Subject: Re: [systemd-devel] Adding a Timer section to .service files > Message-ID: <a10462e0-2353-9be1-bab9-764aa4c18...@thelounge.net> > Content-Type: text/plain; charset="utf-8"; Format="flowed" > > > Am 08.07.2016 um 16:21 schrieb One Infinite Loop: > > I want like my browser processes, for example, to run at a nice value of > > -15. That's why I want to run '/usr/bin/zsh -c '/usr/bin/renice -15 -p > > $(/usr/bin/pgrep -f /opt/google/chrome/chrome)'` every 15 seconds, for > > example > > well, nice -15 means nearly real time and is for a browser similar > *censored* than `echo 3 > /proc/sys/vm/drop_caches` every 15 minutes > because under load combined with a hanging javascript your computer will > no longer respond to anything > > for a real usecase not allowing your browser to eat all ressources when > you visit a buggy website "nice -n 15" in the .desktop file which starts > your browser would be the way to go > > think about a better example - don't get me wrong but that and "i don't > know how to reply" togehter don't qualify you for any technical proposal > > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: signature.asc > Type: application/pgp-signature > Size: 181 bytes > Desc: OpenPGP digital signature > URL: < > https://lists.freedesktop.org/archives/systemd-devel/attachments/20160708/2481e76c/attachment.sig > > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > systemd-devel mailing list > systemd-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/systemd-devel > > > ------------------------------ > > End of systemd-devel Digest, Vol 75, Issue 19 > ********************************************* >
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