https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66059
Adrian Wielgosik <adrian.wielgosik at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |adrian.wielgosik at gmail dot
com
--- Comment #9 from Adrian Wielgosik <adrian.wielgosik at gmail dot com> ---
I did a simple comparison of the improved libstdc++ implementation and Daniel's
one - the difference in time and resource usage is still significant.
$ cat with_stdlib.cpp
#include <utility>
std::make_index_sequence<5000> thing;
$ cat with_tao.cpp
#include <make_integer_sequence.hpp>
tao::seq::make_index_sequence<5000> thing;
$ ./g++trunk with_stdlib.cpp -c -ftime-report
Execution times (seconds)
phase setup : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 1%) wall
1386 kB ( 1%) ggc
phase parsing : 0.97 (100%) usr 0.01 (100%) sys 0.97 (98%)
wall 118230 kB (99%) ggc
phase finalize : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 1%) wall
0 kB ( 0%) ggc
|name lookup : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 1%) wall
440 kB ( 0%) ggc
|overload resolution : 0.03 ( 3%) usr 0.00 ( 0%) sys 0.03 ( 3%) wall
335 kB ( 0%) ggc
parser (global) : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 1%) wall
1459 kB ( 1%) ggc
parser struct body : 0.02 ( 2%) usr 0.00 ( 0%) sys 0.01 ( 1%) wall
1049 kB ( 1%) ggc
parser inl. func. body : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 1%) wall
37 kB ( 0%) ggc
template instantiation : 0.95 (98%) usr 0.01 (100%) sys 0.94 (95%) wall
115432 kB (96%) ggc
TOTAL : 0.97 0.01 0.99
119627 kB
Internal checks disabled; compiler is not suited for release.
Configure with --enable-checking=release to enable checks.
$ ./g++trunk -I sequences/include/tao/seq/ with_tao.cpp -c -ftime-report
Execution times (seconds)
phase setup : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
1386 kB (16%) ggc
phase parsing : 0.10 (100%) usr 0.01 (100%) sys 0.11 (100%)
wall 7413 kB (84%) ggc
|name lookup : 0.01 (10%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
450 kB ( 5%) ggc
preprocessing : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 9%) wall
192 kB ( 2%) ggc
parser (global) : 0.01 (10%) usr 0.00 ( 0%) sys 0.01 ( 9%) wall
1483 kB (17%) ggc
parser struct body : 0.02 (20%) usr 0.00 ( 0%) sys 0.02 (18%) wall
1063 kB (12%) ggc
template instantiation : 0.07 (70%) usr 0.01 (100%) sys 0.07 (64%) wall
4563 kB (52%) ggc
TOTAL : 0.10 0.01 0.11
8811 kB
Internal checks disabled; compiler is not suited for release.
Configure with --enable-checking=release to enable checks.
