On Tue, Dec 06, 2011 at 09:39:48PM -0000, Colin King wrote:
> Hi Steve, I will re-rerun journal-commit on an idle system tomorrow and
> get back to you. Any ideas of scenarios that are typical and may
> generate typical I/O patterns?
I'd guess that typical patterns would include playing music via the default
music player, viewing static web pages, and viewing flash videos in a web
browser. (Other common scenarios when on battery might be composing email /
docs, but I guess those are harder to script for testing?)
> As for the 600 second setting, it is a little scary to see it set so
> high and cause potential data loss risk. But, that's kinda incidental.
Provided that we're using data=ordered (we are, aren't we? :-), I don't find
the prospect of 10 minutes of data loss while on battery terrifying,
especially provided there are syncs happening at sensible times (e.g.,
before suspending/hibernating?). And if it buys more battery life, the odds
of an unplanned power event go down, which seems like a win for data
integrity anyway.
--
Steve Langasek Give me a lever long enough and a Free OS
Debian Developer to set it on, and I can move the world.
Ubuntu Developer http://www.debian.org/
<email address hidden> <email address hidden>
On Tue, Dec 06, 2011 at 09:39:48PM -0000, Colin King wrote:
> Hi Steve, I will re-rerun journal-commit on an idle system tomorrow and
> get back to you. Any ideas of scenarios that are typical and may
> generate typical I/O patterns?
I'd guess that typical patterns would include playing music via the default
music player, viewing static web pages, and viewing flash videos in a web
browser. (Other common scenarios when on battery might be composing email /
docs, but I guess those are harder to script for testing?)
> As for the 600 second setting, it is a little scary to see it set so
> high and cause potential data loss risk. But, that's kinda incidental.
Provided that we're using data=ordered (we are, aren't we? :-), I don't find hibernating? ). And if it buys more battery life, the odds
the prospect of 10 minutes of data loss while on battery terrifying,
especially provided there are syncs happening at sensible times (e.g.,
before suspending/
of an unplanned power event go down, which seems like a win for data
integrity anyway.
-- www.debian. org/
Steve Langasek Give me a lever long enough and a Free OS
Debian Developer to set it on, and I can move the world.
Ubuntu Developer http://
<email address hidden> <email address hidden>