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Groups > comp.os.linux.development.system > #378
| From | Stefan Monnier <monnier@iro.umontreal.ca> |
|---|---|
| Newsgroups | comp.os.linux.development.system, comp.unix.programmer |
| Subject | Re: Getting time of last reboot on Linux |
| Message-ID | <jwv4nw5ezc6.fsf-monnier+comp.unix.programmer@gnu.org> (permalink) |
| References | <4c0afddf-5e6e-41f5-b8d2-b65afcc4ee29@z1g2000vbx.googlegroups.com> <RjqHq.27421$c27.19904@newsfe22.iad> <k5t4s8-sr2.ln1@wilbur.25thandClement.com> <kxQHq.31305$U16.23953@newsfe15.iad> <pc2dnV-3uITQVm_TnZ2dnUVZ_tydnZ2d@posted.internetamerica> |
| Date | 2012-01-09 09:18 -0500 |
Cross-posted to 2 groups.
> I would expect that it would be near 100% on systems where there
> is no real-time-clock kept alive when the system is powered off,
> and the system has to resort to a mod time on the root superblock
> from shutdown. Scheduled shutdowns (systems not expected to run
> anywhere close to 24/7 for power-saving, security, noise, or other
> reasons) or shutdowns for hardware reconfiguration are likely to
> take more than 10 minutes. I'll assume that the system is robust
> enough not to have a lot of panic/immediate reboot cycles.
FWIW, it *is* 100% on many/most home routers I know, since they don't
have any RTC, and they don't try to do anything fancy with the root
superblock (they try to touch the flash as rarely as possible) nor do
they even shutdown usually (they're just power cycled instead).
Stefan
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Getting time of last reboot on Linux Alex Vinokur <alex.vinokur@gmail.com> - 2011-12-18 09:35 -0800
Re: Getting time of last reboot on Linux Steve Thompson <smt@vgersoft.com> - 2011-12-18 12:46 -0500
Re: Getting time of last reboot on Linux Alex Vinokur <alex.vinokur@gmail.com> - 2011-12-18 10:12 -0800
Re: Getting time of last reboot on Linux Volker Birk <bumens@dingens.org> - 2011-12-18 18:19 +0000
Re: Getting time of last reboot on Linux Andrew Smallshaw <andrews@sdf.lonestar.org> - 2011-12-21 16:01 +0000
Re: Getting time of last reboot on Linux Volker Birk <bumens@dingens.org> - 2011-12-18 18:18 +0000
Re: Getting time of last reboot on Linux Lew Pitcher <lpitcher@teksavvy.com> - 2011-12-18 13:31 -0500
Re: Getting time of last reboot on Linux Stephane CHAZELAS <stephane_chazelas@yahoo.fr> - 2011-12-18 21:48 +0000
Re: Getting time of last reboot on Linux Barry Margolin <barmar@alum.mit.edu> - 2011-12-18 21:29 -0500
Re: Getting time of last reboot on Linux Stephane CHAZELAS <stephane_chazelas@yahoo.fr> - 2011-12-19 12:59 +0000
Re: Getting time of last reboot on Linux William Ahern <william@wilbur.25thandClement.com> - 2011-12-19 15:15 -0800
Re: Getting time of last reboot on Linux Lew Pitcher <lpitcher@teksavvy.com> - 2011-12-19 19:20 -0500
Re: Getting time of last reboot on Linux William Ahern <william@wilbur.25thandClement.com> - 2011-12-19 18:32 -0800
Re: Getting time of last reboot on Linux gordonb.xm1tg@burditt.org (Gordon Burditt) - 2011-12-22 00:16 -0600
Re: Getting time of last reboot on Linux Stefan Monnier <monnier@iro.umontreal.ca> - 2012-01-09 09:18 -0500
Re: Getting time of last reboot on Linux Ivan Shmakov <oneingray@gmail.com> - 2011-12-20 11:48 +0700
Re: Getting time of last reboot on Linux Richard Kettlewell <rjk@greenend.org.uk> - 2011-12-21 17:06 +0000
Re: Getting time of last reboot on Linux gazelle@shell.xmission.com (Kenny McCormack) - 2012-02-09 17:25 +0000
Re: Getting time of last reboot on Linux Richard Kettlewell <rjk@greenend.org.uk> - 2012-02-09 21:11 +0000
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