$ xg++ --version
xg++ (GCC) 14.0.0 20230911 (experimental)
Copyright (C) 2023 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
$ git rev-parse HEAD~2 # base commit
25c30049f5896ef6312cf45a1c058ee3e3079e6a$ git log -n 2 --pretty=format:%H # changes from the base
048927ed8561ca994ad853fe85ccf8c2ca07a8fe
316d57da5bb9205b946afc56d78582fee874e4b5$ perf stat xg++ -std=c++2b -c is_scoped_enum_v.cc
x /tmp/tmp.VckpWmBEWZ/time_A.txt
+ /tmp/tmp.VckpWmBEWZ/time_B.txt
+----------------------------------------------------------------------+
| + x |
| ++ xx |
| ++ xx |
| ++ + ++ x xxxx|
||_M_A___| |_AM_||
+----------------------------------------------------------------------+
N Min Max Median Avg Stddev
x 10 4.2673449 4.4862935 4.4478224 4.4227799 0.05949854
+ 10 2.9064265 3.1420003 2.9324074 2.9757774 0.094155188
Difference at 95.0% confidence
-1.447 +/- 0.0739996
-32.717% +/- 1.67315%
(Student's t, pooled s = 0.0787568)$ /usr/bin/time -v xg++ -std=c++2b -c is_scoped_enum_v.cc
x /tmp/tmp.VckpWmBEWZ/peak_mem_A.txt
+ /tmp/tmp.VckpWmBEWZ/peak_mem_B.txt
+----------------------------------------------------------------------+
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|A A|
+----------------------------------------------------------------------+
N Min Max Median Avg Stddev
x 10 1095548 1095896 1095768 1095718.8 102.72812
+ 10 905056 905416 905296 905277.6 114.28152
Difference at 95.0% confidence
-190441 +/- 102.095
-17.3805% +/- 0.00931763%
(Student's t, pooled s = 108.658)$ xg++ -ftime-report -std=c++2b -c is_scoped_enum_v.cc
x /tmp/tmp.VckpWmBEWZ/total_mem_A.txt
+ /tmp/tmp.VckpWmBEWZ/total_mem_B.txt
+----------------------------------------------------------------------+
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|A A|
+----------------------------------------------------------------------+
N Min Max Median Avg Stddev
x 10 1294 1294 1294 1294 0
+ 10 1047 1047 1047 1047 0
Difference at 95.0% confidence
-247 +/- 0
-19.0881% +/- 0%
(Student's t, pooled s = 0)$ xg++ --version
xg++ (GCC) 14.0.0 20231016 (experimental)
Copyright (C) 2023 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
$ perf stat xg++ -std=c++2b -c is_scoped_enum_v.cc
x /tmp/tmp.1h5DYteHvL/time_no_builtin.txt
+ /tmp/tmp.1h5DYteHvL/time_builtin.txt
+----------------------------------------------------------------------+
| + x |
| + + x |
|+++++++ xx x xx x|
| |_A_| |__M__A____| |
+----------------------------------------------------------------------+
N Min Max Median Avg Stddev
x 10 4.599905 5.0667456 4.6517754 4.7207256 0.16156969
+ 10 2.9504342 3.1484237 3.0367281 3.0337029 0.067848214
Difference at 95.0% confidence
-1.68702 +/- 0.116427
-35.7365% +/- 2.46629%
(Student's t, pooled s = 0.123912)$ /usr/bin/time -v xg++ -std=c++2b -c is_scoped_enum_v.cc
x /tmp/tmp.1h5DYteHvL/peak_mem_no_builtin.txt
+ /tmp/tmp.1h5DYteHvL/peak_mem_builtin.txt
+----------------------------------------------------------------------+
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|A A|
+----------------------------------------------------------------------+
N Min Max Median Avg Stddev
x 10 1107760 1108112 1107904 1107911.2 98.608992
+ 10 906384 906736 906556 906544.8 104.32087
Difference at 95.0% confidence
-201366 +/- 95.3738
-18.1753% +/- 0.00860843%
(Student's t, pooled s = 101.505)$ xg++ -ftime-report -std=c++2b -c is_scoped_enum_v.cc
x /tmp/tmp.1h5DYteHvL/total_mem_no_builtin.txt
+ /tmp/tmp.1h5DYteHvL/total_mem_builtin.txt
+----------------------------------------------------------------------+
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|A A|
+----------------------------------------------------------------------+
N Min Max Median Avg Stddev
x 10 1324 1324 1324 1324 0
+ 10 1046 1046 1046 1046 0
Difference at 95.0% confidence
-278 +/- 0
-20.997% +/- 0%
(Student's t, pooled s = 0)x ./reports/built-ins/is_scoped_enum_v/time_no_builtin.txt
+ ./reports/built-ins/is_scoped_enum_v/time_builtin.txt
+----------------------------------------------------------------------+
|+ |
|+ + x x x |
|+ + +++ + + x x x xx xx|
||____A____| |______A_M____| |
+----------------------------------------------------------------------+
N Min Max Median Avg Stddev
x 10 5.2048712 6.0551091 5.838973 5.7598789 0.27491655
+ 10 3.4819245 3.9856531 3.6676574 3.6665642 0.17547562
Difference at 95.0% confidence
-2.09331 +/- 0.216689
-36.343% +/- 3.76204%
(Student's t, pooled s = 0.23062)x ./reports/built-ins/is_scoped_enum_v/peak_mem_no_builtin.txt
+ ./reports/built-ins/is_scoped_enum_v/peak_mem_builtin.txt
+----------------------------------------------------------------------+
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|A A|
+----------------------------------------------------------------------+
N Min Max Median Avg Stddev
x 10 1106984 1107192 1107108 1107099.2 69.864631
+ 10 905876 906196 905996 906017.2 125.54663
Difference at 95.0% confidence
-201082 +/- 95.4581
-18.163% +/- 0.00862236%
(Student's t, pooled s = 101.595)x ./reports/built-ins/is_scoped_enum_v/total_mem_no_builtin.txt
+ ./reports/built-ins/is_scoped_enum_v/total_mem_builtin.txt
+----------------------------------------------------------------------+
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|+ x|
|A A|
+----------------------------------------------------------------------+
N Min Max Median Avg Stddev
x 10 1324 1324 1324 1324 0
+ 10 1046 1046 1046 1046 0
Difference at 95.0% confidence
-278 +/- 0
-20.997% +/- 0%
(Student's t, pooled s = 0)