2008/10/1 Claude Heiland-Allen <[EMAIL PROTECTED]>: > Benchmarking an Abstraction Cache for Pd > ======================================== > > I implemented a rudimentary abstraction caching mechanism for Miller > Puckette's pd-0.41-4, which stores the parsed text ("binbuf") associated > with the class name instead of looking for files to load every time it > is instantiated. > > > Benchmark Mechanism > ------------------- > > Run 4 times, discarding first report: > $ time pd -open layer_2.pd -send "; pd quit" &>/dev/null > > layer_2.pd contains 99 layer_1.pd contains 99 layer_0.pd, > total 9901 = 9801 layer 0 + 99 layer 1 + 1 layer 0 > > > Results: Without Cache > ---------------------- > > real 0m0.524s > user 0m0.260s > sys 0m0.256s > > real 0m0.530s > user 0m0.224s > sys 0m0.276s > > real 0m0.527s > user 0m0.224s > sys 0m0.296s > > > Results: With Cache > ------------------- > > real 0m0.082s > user 0m0.068s > sys 0m0.004s > > real 0m0.148s > user 0m0.120s > sys 0m0.008s > > real 0m0.085s > user 0m0.052s > sys 0m0.012s > > > Conclusion > ---------- > > Abstraction cache gives a speed boost of more than 500% when loading > patches containing a large number of abstractions.
Claudius, this is awesome. I'm going to build this later and see how it does with my stuff, which has become a nightmare to work with (5-10 layers of depth, tons of instances, 3-15 minute loadtimes) (of course, it's sufficiently fun after loading to engender my patience thus far : )). I'll post my results Best Luke > > > Further Work > ------------ > > The main drawback (and the easiest issue to resolve) of the current > implementation is that once an abstraction is in the cache, it stays > there forever, no matter if the file is modified within or without Pd. > This could be fixed by flushing the cache immediately after the patch > is loaded (perhaps using Pd's scheduler). > > Another drawback are that abstractions in different directories with > the same file name can clobber each other - the first one loaded is the > "one true abstraction" with that name, resolving this issue will be more > difficult. > > > > #N canvas 0 0 450 300 10; > #X obj 28 24 inlet; > #X obj 33 262 outlet; > > #N canvas 0 0 450 300 10; > #X obj 8 9 layer_0; > #X obj 8 29 layer_0; > #X obj 8 49 layer_0; > #X obj 8 69 layer_0; > #X obj 8 89 layer_0; > #X obj 8 109 layer_0; > #X obj 8 129 layer_0; > #X obj 8 149 layer_0; > #X obj 8 169 layer_0; > #X obj 8 189 layer_0; > #X obj 8 209 layer_0; 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> #X obj 308 69 layer_1; > #X obj 308 89 layer_1; > #X obj 308 109 layer_1; > #X obj 308 129 layer_1; > #X obj 308 149 layer_1; > #X obj 308 169 layer_1; > #X obj 308 189 layer_1; > #X obj 308 209 layer_1; > #X obj 308 230 layer_1; > #X obj 308 250 layer_1; > #X obj 308 270 layer_1; > #X obj 368 9 layer_1; > #X obj 368 29 layer_1; > #X obj 368 49 layer_1; > #X obj 368 69 layer_1; > #X obj 368 89 layer_1; > #X obj 368 109 layer_1; > #X obj 368 129 layer_1; > #X obj 368 149 layer_1; > #X obj 368 169 layer_1; > #X obj 368 189 layer_1; > #X obj 368 209 layer_1; > #X obj 368 230 layer_1; > #X obj 368 250 layer_1; > #X obj 368 270 layer_1; > > _______________________________________________ > Pd-dev mailing list > [EMAIL PROTECTED] > http://lists.puredata.info/listinfo/pd-dev > > _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list