Exactly, hardcron checks once a minute, softcron checks on each page
load. The 'check' is calling a function or two and comparing a file's
timestamp, so not *that* much more expensive.

On Apr 1, 7:51 pm, Jonathan Lundell <jlund...@pobox.com> wrote:
> On Apr 1, 2010, at 10:37 AM, AchipA wrote:
>
> > There is some overhead, but efficiency is a disputable term - there is
> > certainly more overhead than hardcron, but IMO not in a way that would
> > affect overall performance unless you're running it on a site that has
> > hundreds of thousands of hits per day...
>
> Perhaps we could change (or eliminate) the wording. How about simply 'Using 
> softcron'?
>
> I'm curious: what is the extra overhead of soft vs hard cron? Just that it 
> does a test on each page access? I'm guessing that's pretty cheap.
>
>
>
> > On Apr 1, 5:40 pm, Jonathan Lundell <jlund...@pobox.com> wrote:
> >> Section 4.17 (cron) mentions hard vs soft cron defaults, but doesn't say 
> >> how to override them.
>
> >> Section 4.1 (cli) doesn't list --softcron
>
> >> The startup message for soft cron says: 'Using softcron (but this is not 
> >> very efficient)'
>
> >> In what sense "not efficient"? I understand that the timing is less 
> >> consistent, but is there really more overhead? softcron seems like a 
> >> pretty reasonable choice if all you're doing it deleting expired sessions.

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