[Bug 584938] Re: missing shorter timestamp option

[Jérôme]

Still occurs on natty :
---
j at lu64:~$ tail -1 /var/log/syslog
Sep  3 14:08:24 lu64 kernel: [ 4909.031016] hrtimer: interrupt took 12699711 ns
j at lu64:~$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 11.04
Release:	11.04
Codename:	natty
j at lu64:~$
---

In the above /var/log/syslog record, note that :
- the rsyslogd timestamp is 19% of the whole message length
- the kernel timestamp is 18% of the whole message length
- both timestamps are 38% of the whole message length

I think there is a lot of processor, disk and energy to spare.

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https://bugs.launchpad.net/bugs/584938

Title:
  missing shorter timestamp option

Status in “rsyslog” package in Ubuntu:
  Opinion

Bug description:
  Binary package hint: rsyslog

  The default timestamp printed into the log files has the below format:
  "May 24 12:31:05"

  By allowing a shorter timestamp format, I think we could :
  - speed-up the whole system by lowering I/O volume
  - make the later log processing faster (analysis, log rotation, ...)
  - decrease the disk usage
  - decrease the energy consumption during the whole log file lifetime

  I took a snapshot of the /var/log/syslog file and tried several
  shorter timestamp formats.

  When substituting with the below timestamp format, the file size decreases by 1%:
  "05.24 12:31:05"

  If I apply a less accurate timestamp format then the file size decreases by 4%:
  "05.24 12:31"

  An extremely short format can decrease the file size by 5%:
  "0524 12:31"

  Most desktop end users would benefit from a shorter timestamp option,
  especially on laptops which have to spare energy.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: rsyslog 4.2.0-2ubuntu8
  ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
  Uname: Linux 2.6.32-22-generic i686
  Architecture: i386
  Date: Mon May 24 14:03:37 2010
  InstallationMedia: Xubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100427.1)
  ProcEnviron:
   LANG=fr_FR.utf8
   SHELL=/bin/bash
  SourcePackage: rsyslog

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