Re: [boost] performance test between boost::signals and sigc++-2.0

From: razeh (razeh_at_[hidden])
Date: 2005-06-24 19:17:20

Christophe, thanks for the benchmarking program!

I'm in the process of removing the boost::any usage in signals.  Right
now I've moved everything into a header file.  My numbers look a bit
better.

razeh_at_squirmy:~/boost-signals$ ./tbs-snapshot 4 10000000
==================================================================
call dummy::operator()
#Slots         #Calls boost::signals     sigc++-2.0          Ratio
     0            100              0              0            nan
     0           1000              0              0            nan
     0          10000           0.01              0            inf
     0         100000           0.07           0.01              7
     0        1000000           0.75           0.03             25
     0       10000000           7.61           0.31        24.5484
     1            100              0              0            nan
     1           1000              0              0            nan
     1          10000           0.02              0            inf
     1         100000           0.13           0.04           3.25
     1        1000000           1.32           0.39        3.38462
     1       10000000          13.28           3.66        3.62842
     2            100              0              0            nan
     2           1000           0.01              0            inf
     2          10000           0.02              0            inf
     2         100000           0.19           0.04           4.75
     2        1000000            1.9            0.4           4.75
     2       10000000          18.92           3.88        4.87629
     3            100              0              0            nan
     3           1000           0.01              0            inf
     3          10000           0.02           0.01              2
     3         100000           0.24           0.05            4.8
     3        1000000           2.39           0.43        5.55814
     3       10000000          23.83           4.14        5.75604
==================================================================
call A::operator()
#Slots         #Calls boost::signals     sigc++-2.0          Ratio
     0            100              0              0            nan
     0           1000              0              0            nan
     0          10000           0.01              0            inf
     0         100000           0.07           0.01              7
     0        1000000           0.76           0.03        25.3333
     0       10000000           7.68           0.33        23.2727
     1            100              0              0            nan
     1           1000              0              0            nan
     1          10000           0.02              0            inf
     1         100000           0.16           0.06        2.66667
     1        1000000           1.62            0.6            2.7
     1       10000000          15.93           6.06        2.62871
     2            100              0              0            nan
     2           1000              0              0            nan
     2          10000           0.03           0.01              3
     2         100000           0.25           0.09        2.77778
     2        1000000           2.43           0.84        2.89286
     2       10000000          24.32           8.43        2.88493
     3            100              0           0.01              0
     3           1000              0              0            nan
     3          10000           0.03           0.01              3
     3         100000           0.31           0.12        2.58333
     3        1000000           3.21           1.08        2.97222
     3       10000000          31.93          10.95        2.91598

razeh_at_squirmy:~/boost-signals$ uname -a
Linux squirmy 2.6.8-2-k7 #1 Thu May 19 18:03:29 JST 2005 i686 GNU/Linux
razeh_at_squirmy:~/boost-signals$ gcc -v
Reading specs from /usr/lib/gcc-lib/i486-linux/3.3.5/specs
Configured with: ../src/configure -v --enable-languages=c,c++,java,f77,pascal,objc,ada,treelang --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --enable-__cxa_atexit --with-system-zlib --enable-nls --without-included-gettext --enable-clocale=gnu --enable-debug --enable-java-gc=boehm --enable-java-awt=xlib --enable-objc-gc i486-linux
Thread model: posix
gcc version 3.3.5 (Debian 1:3.3.5-13)

I've attached a patch --- but I haven't done much testing with it, and
it represents something I'm in the middle of.