I would also be interested in something like this.

How does the cache decide how much RAM to use?


On Mar 10, 4:20 am, Thadeus Burgess <thade...@thadeusb.com> wrote:
> So an option to DAL.__init__(auto_cache=False, clear_cache_on_update=False) ?
>
> auto_cache does an infinity cache time, where if there is any updates
> done to the db all cached selects are cleared.... and alternatively an
> option to only clear cached selects that have to do with the table
> that is selected.
>
> I feel about 50% on the idea... not sure I want every single select I
> make automatically cached, you definitely wouldn't want this if your
> competing for RAM, but if you can afford the RAM this would be nice.
>
> -Thadeus
>
> On Tue, Mar 9, 2010 at 11:00 AM, mdipierro <mdipie...@cs.depaul.edu> wrote:
> > You can already do
>
> > cache.ram.clear(db._uri + '/SELECT')
>
> > and it will clear all cached select statements. You have to specify
> > db._uri because you may have multiple db cached.
>
> > Massimo
>
> > On Mar 9, 10:37 am, Thadeus Burgess <thade...@thadeusb.com> wrote:
> >> What if the cache system includes a "category" or "type" field. All
> >> cached SQL could be of type "SQL", and then say responses can be
> >> cached as "RESP". This way if you refresh the cache instead of
> >> clearing the entire thing, we can specify
>
> >> cache.ram.clear(type="SQL") and it will only clear the sql typed
> >> entries, leaving other aspects of the cache alone.
>
> >> however cache.ram.clear() will still clear everything.
>
> >> That way, the DAL could be set a flag to clear its own cache upon
> >> i/u/d operations.
>
> >> How does this sound? If good I can start on the patch right away :)
>
> >> -Thadeus
>
> >> On Tue, Mar 9, 2010 at 10:08 AM, mdipierro <mdipie...@cs.depaul.edu> wrote:
> >> > You can do that if after insert/update/delete you do
>
> >> > db(...).select(cache=(cache.disk,0))
>
> >> > Massimo
>
> >> > On Mar 9, 9:06 am, Praneeth <life...@gmail.com> wrote:
> >> >> Would it be better to have a non time based caching? Say refresh cache
> >> >> on DB update?
> >> >> Time based caching requires guessing the cache time - which in my
> >> >> opinion seems like a bad thing to do.
>
> >> >> Thoughts?
>
> >> >> --
> >> >> Praneeth
>
> >> >> On 03/09/2010 08:33 PM, mdipierro wrote:
>
> >> >> > It is there already.
>
> >> >> > values=db(...).select(cache=(cache.disk,3600))
>
> >> >> > 3600 is the time.
>
> >> >> > On Mar 9, 5:23 am, Praneeth <life...@gmail.com> wrote:
>
> >> >> >> Hello all,
>
> >> >> >> I was wondering if DAL level caching could be added. I am aware of
> >> >> >> cache.ram and cache.disk, but these require the usage of a decorator
> >> >> >> over the functions. I feel that a cache option to cache at the DAL 
> >> >> >> level
> >> >> >> that could be enabled by flipping an option in db.py of an 
> >> >> >> application
> >> >> >> would be of great help. The cache can be a key value pair of sorts,
> >> >> >> where the cache is flushed on each write/update and cached on the 
> >> >> >> first
> >> >> >> read - There are probably smarter ways of doing this.
>
> >> >> >> Thoughts?
>
> >> >> >> --
> >> >> >> Praneeth
>
> >> > --
> >> > You received this message because you are subscribed to the Google 
> >> > Groups "web2py-users" group.
> >> > To post to this group, send email to web...@googlegroups.com.
> >> > To unsubscribe from this group, send email to 
> >> > web2py+unsubscr...@googlegroups.com.
> >> > For more options, visit this group 
> >> > athttp://groups.google.com/group/web2py?hl=en.
>
> > --
> > You received this message because you are subscribed to the Google Groups 
> > "web2py-users" group.
> > To post to this group, send email to web...@googlegroups.com.
> > To unsubscribe from this group, send email to 
> > web2py+unsubscr...@googlegroups.com.
> > For more options, visit this group 
> > athttp://groups.google.com/group/web2py?hl=en.

-- 
You received this message because you are subscribed to the Google Groups 
"web2py-users" group.
To post to this group, send email to web...@googlegroups.com.
To unsubscribe from this group, send email to 
web2py+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/web2py?hl=en.

Reply via email to