Re: [abc] PLDI paper

I think that's because of the pointcut inlining and perhaps the conversion
to dnf - both result in an enormous number of stacks without the optims
turned on.

On Sat, 9 Apr 2005, Ondrej Lhotak wrote:

> Oops, we're only slower in the no-opt case. I was looking at the wrong
> column. Still, we're a lot slower in the no-opt case.
>
> Ondrej
>
> On Sat, Apr 09, 2005 at 06:40:57PM -0400, Ondrej Lhotak wrote:
> > One thing that's strange is that on lod-sim, we are much worse than we
> > were in abc 1.0.0, in all the configurations. I just checked to make
> > sure those numbers were correct, and they are. I wonder what we messed
> > up since 1.0.0...
> >
> > Ondrej
> >
> > On Sat, Apr 09, 2005 at 04:01:37PM -0400, Prof. Laurie HENDREN wrote:
> > > Ondrej,
> > >
> > > Those numbers look good. I think those are the categories we want.
> > > Since threadlocal is always better, I think we should just go with
> > > those numbers (it is also our default).
> > >
> > > I don't remember if ajc1.2 uses ThreadLocal or not. Do you have
> > > a copy of the ajc 1.2 runtime lib to check? I'm pretty sure that
> > > ajc1.2.1 does use ThreadLocal (but not with my caching trick).
> > >
> > > Can you do ajc 1.2 and 1.2.1 (with lib
> > > runtime library for each) so we can compare those too. Looking
> > > at the numbers from the paper, I think we are doing well on
> > > everything but Cona-sim ... I wonder why we are slower there?
> > >
> > > Cheers, Laurie
> > >
> > > +-------------------------------------------------------------+
> > > | Laurie Hendren, Professor, School of Computer Science |
> > > | McGill University |
> > > | 318 McConnell Engineering Building tel: (514) 398-7391 |
> > > | 3480 University Street fax: (514) 398-3883 |
> > > | Montreal, Quebec H3A 2A7 hendren@cs.mcgill.ca |
> > > | CANADA http://www.sable.mcgill.ca/~hendren |
> > > | http://wwww.sable.mcgill.ca http://aspectbench.org |
> > > +-------------------------------------------------------------+
> > >
> > > On Sat, 9 Apr 2005, Ondrej Lhotak wrote:
> > >
> > > > Here are the intraprocedural numbers.
> > > >
> > > > noopt means no intraproc optimizations
> > > > sharing means sharing only
> > > > shar+cnt means sharing and using counters
> > > > all3 means sharing, using counters, and -cflow-share-thread-locals
> > > >
> > > > "new" (not threadlocal)
> > > > noopt sharing shar+cnt all3
> > > > figure 1219.82 285.22 139.29 24.56
> > > > quicksort 122.02 75.58 28.39 27.51
> > > > sablecc 30.52 30.11 23.83 22.72
> > > > ants 21.25 21.31 21.21 18.73
> > > > lod-sim 1741.00 50.35 34.75 26.58
> > > > lod-weka 1495.65 155.02 102.33 74.65
> > > > conastack 689.40 91.99 52.60 29.07
> > > > conasim 76.11 75.56 73.49 72.11
> > > >
> > > > "threadlocal"
> > > > noopt sharing shar+cnt all3
> > > > figure 1074.36 238.68 90.26 20.35
> > > > quicksort 122.06 75.08 27.86 27.41
> > > > sablecc 29.65 29.75 23.31 23.05
> > > > ants 19.03 19.27 18.96 17.95
> > > > lod-sim 1723.44 46.47 32.92 25.99
> > > > lod-weka 1351.21 143.32 92.20 74.84
> > > > conastack 594.46 80.00 41.13 27.24
> > > > conasim 75.54 75.34 73.54 71.95
> > > >
> > > > The times are just from one run each, for now, not average-of-5.
> > > >
> > > > Ondrej
> > > >
> > > > On Sat, Apr 09, 2005 at 02:12:07PM -0400, Prof. Laurie HENDREN wrote:
> > > > > I have been working on the format (ACM has a new conference proceedings
> > > > > style) and the list of things we need to look at for the final version.
> > > > > Ondrej and I discussed the experiments to do for intraproc cflow opts -
> > > > > now that there are more of them, and he is working on those.
> > > > >
> > > > > In the pldi05abc/ svn directory, the final version we will submit is
> > > > > final.tex. I think most things with the new format have been resolved and
> > > > > I have added the general terms, keywords and so on. We can add more/different
> > > > > keywords if we want.
> > > > >
> > > > > Also, in that directory is TODO.txt, which I include here:
> > > > >
> > > > > ----------- TODO.txt
> > > > >
> > > > > 1) Run around benchmarks -
> > > > > are there some other variations we can do on the inlining?
> > > > >
> > > > > 2) Run intraproc cflow benchmarks -
> > > > > decide if we should show both versions of handling threadlocals?
> > > > >
> > > > > 3) Run interproc cflow benchmarks
> > > > >
> > > > > 4) Check if performance difference between ajc 1.2 and 1.2.1 is due to
> > > > > cflow counters only
> > > > >
> > > > > In reality, there could be several effects:
> > > > >
> > > > > - using counters
> > > > > - better sharing of stacks/counters
> > > > > - not introducing extra copies of counters
> > > > > (may have had a bug in 1.2 - seemed to introduce too many
> > > > > counters)
> > > > > - improvements in runtime lib (i.e. ThreadLocal ... did that come
> > > > > between 1.2 and 1.2.1?)
> > > > > - some other optimization introduced in ajc between 1.2 and 1.2.½
> > > > >
> > > > > 5) Fix bib entries - make sure all titles have caps in right places and
> > > > > page numbers.
> > > > >
> > > > > 6) Change figure for reweaving and perhaps expand upon that section (one
> > > > > reviewer wanted more description of reweaving)
> > > > >
> > > > > 7) Decide if we should mention "other optimizations" or not. If so, fix them
> > > > > up.
> > > > >
> > > > > 8) Damien mentioned a variation of our inter-proc algorithm ... Damien ...
> > > > > what was it - something about not needed something on "all paths"?
> > > > >
> > > > > 9) Formatting of figures and tables. Does everything look ok. Should we put
> > > > > some of the code segments into figures?
> > > > >
> > > > > -----------
> > > > >
> > > > > Cheers, Laurie
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > +-------------------------------------------------------------+
> > > > > | Laurie Hendren, Professor, School of Computer Science |
> > > > > | McGill University |
> > > > > | 318 McConnell Engineering Building tel: (514) 398-7391 |
> > > > > | 3480 University Street fax: (514) 398-3883 |
> > > > > | Montreal, Quebec H3A 2A7 hendren@cs.mcgill.ca |
> > > > > | CANADA http://www.sable.mcgill.ca/~hendren |
> > > > > | http://wwww.sable.mcgill.ca http://aspectbench.org |
> > > > > +-------------------------------------------------------------+
> > > > >
> > > > >
> > > >
> > >
> > >
>
Received on Mon Apr 11 12:40:41 2005