http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375
--- Comment #182 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
OK, after a while I should update the stats here. Richard's new tree merging
patch makes libxul linking a lot faster and less memory consuming.
Peak memory usage (in TOP) is now just bellow 10GB, with bit of incremental
improvmenets I hope to get bellow 8GB again soon.
Bulid time is
real 19m0.355s
user 56m20.459s
sys 2m17.533s
GGC memory usage after stream in 4938399k
Execution times (seconds)
phase setup : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
1399 kB ( 0%) ggc
phase opt and generate : 72.86 (12%) usr 0.90 ( 3%) sys 75.25 (11%) wall
270952 kB ( 7%) ggc
phase stream in : 274.88 (44%) usr 9.01 (26%) sys 294.99 (43%) wall
3478515 kB (93%) ggc
phase stream out : 282.18 (45%) usr 24.40 (71%) sys 308.42 (45%) wall
7162 kB ( 0%) ggc
garbage collection : 12.99 ( 2%) usr 0.01 ( 0%) sys 13.00 ( 2%) wall
0 kB ( 0%) ggc
callgraph optimization : 1.95 ( 0%) usr 0.00 ( 0%) sys 1.95 ( 0%) wall
32 kB ( 0%) ggc
ipa cp : 9.82 ( 2%) usr 0.39 ( 1%) sys 10.26 ( 2%) wall
418482 kB (11%) ggc
ipa inlining heuristics : 39.30 ( 6%) usr 1.12 ( 3%) sys 41.52 ( 6%) wall
1353294 kB (36%) ggc
ipa lto gimple in : 0.45 ( 0%) usr 0.15 ( 0%) sys 0.62 ( 0%) wall
0 kB ( 0%) ggc
ipa lto gimple out : 18.24 ( 3%) usr 1.50 ( 4%) sys 19.86 ( 3%) wall
0 kB ( 0%) ggc
ipa lto decl in : 200.68 (32%) usr 5.85 (17%) sys 216.44 (32%) wall
3887175 kB (103%) ggc
ipa lto decl out : 256.24 (41%) usr 13.44 (39%) sys 271.24 (40%) wall
0 kB ( 0%) ggc
ipa lto cgraph I/O : 7.20 ( 1%) usr 1.61 ( 5%) sys 8.83 ( 1%) wall
2134157 kB (57%) ggc
ipa lto decl merge : 27.71 ( 4%) usr 0.01 ( 0%) sys 27.72 ( 4%) wall
8270 kB ( 0%) ggc
ipa lto cgraph merge : 17.31 ( 3%) usr 0.07 ( 0%) sys 17.39 ( 3%) wall
142240 kB ( 4%) ggc
whopr wpa : 8.82 ( 1%) usr 0.04 ( 0%) sys 8.89 ( 1%) wall
7165 kB ( 0%) ggc
whopr wpa I/O : 1.63 ( 0%) usr 9.43 (27%) sys 11.19 ( 2%) wall
0 kB ( 0%) ggc
whopr partitioning : 3.21 ( 1%) usr 0.04 ( 0%) sys 3.25 ( 0%) wall
0 kB ( 0%) ggc
ipa reference : 5.56 ( 1%) usr 0.04 ( 0%) sys 5.81 ( 1%) wall
0 kB ( 0%) ggc
ipa profile : 1.83 ( 0%) usr 0.02 ( 0%) sys 1.86 ( 0%) wall
0 kB ( 0%) ggc
ipa pure const : 6.07 ( 1%) usr 0.18 ( 1%) sys 6.26 ( 1%) wall
0 kB ( 0%) ggc
inline parameters : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
14 kB ( 0%) ggc
tree copy propagation : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
0 kB ( 0%) ggc
tree PTA : 0.05 ( 0%) usr 0.00 ( 0%) sys 0.05 ( 0%) wall
0 kB ( 0%) ggc
tree SSA rewrite : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
27 kB ( 0%) ggc
tree SSA other : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
0 kB ( 0%) ggc
tree CCP : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
0 kB ( 0%) ggc
dominance computation : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
0 kB ( 0%) ggc
varconst : 0.14 ( 0%) usr 0.12 ( 0%) sys 0.24 ( 0%) wall
0 kB ( 0%) ggc
unaccounted todo : 10.69 ( 2%) usr 0.29 ( 1%) sys 11.10 ( 2%) wall
0 kB ( 0%) ggc
TOTAL : 629.93 34.31 678.67
3758029 kB
Memory usage seems about the same with -g.
Honza
