Beefy Boxes and Bandwidth Generously Provided by pair Networks
The stupid question is the question not asked
 
PerlMonks  

Re^3: Speeding up named capture buffer access

by vitoco (Friar)
on Dec 01, 2009 at 15:41 UTC ( #810406=note: print w/ replies, xml ) Need Help??


in reply to Re^2: Speeding up named capture buffer access
in thread Speeding up named capture buffer access

I don't see anything wrong with:

%tmp = %+;

Did you try/get the number of calls of this?

BTW, I first thought about the following as in update/append mode for hashes:

@tmp{ keys %+ } = values %+;

but I could predict that the number of calls should increase.


Comment on Re^3: Speeding up named capture buffer access
Select or Download Code
Replies are listed 'Best First'.
Re^4: Speeding up named capture buffer access
by SBECK (Pilgrim) on Dec 01, 2009 at 16:33 UTC

    There's not anything 'wrong' with it (i.e. it works), but now, in addition to 3 calls to FETCH for every key, there are also calls to FIRSTKEY and NEXTKEY, so the number of calls increases, and it's marginally slower.

    Basically, if there are 3 named buffers (and in the real-life module, there's usually a lot more than that), there have to be 3 calls to FETCH, but by doing the work at the level of my module, it is constantly doing a FETCH and returning to my module, then calling FETCH again, over and over.

    I want to have a Tie::Hash method which will return the entire hash. Then there will be only a single call to a Tie::Hash::NamedCapture routine (which will then call all of the FETCH'es internally, but since this is all c code, it should be a lot faster).

    Unfortunately, I'm fairly certain it doesn't exist at this point, so I'm just experimenting with ways to speed up what I've got.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://810406]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others wandering the Monastery: (6)
As of 2015-07-30 05:56 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (270 votes), past polls