http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48636
--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2011-04-17
10:23:03 UTC ---
As shown by the following results it seems that --param max-inline-insns-auto=*
is the way to go.
Date & Time : 17 Apr 2011 11:22:05
Test Name : pbharness
Compile Command : gfc %n.f90 -Ofast -funroll-loops -ftree-loop-linear
-fomit-frame-pointer --param max-inline-insns-auto=400 -fwhole-program -flto
-fstack-arrays -o %n
Benchmarks : ac aermod air capacita channel doduc fatigue gas_dyn induct
linpk mdbx nf protein rnflow test_fpu tfft
Maximum Times : 300.0
Target Error % : 0.200
Minimum Repeats : 2
Maximum Repeats : 5
Benchmark Compile Executable Ave Run Number Estim
Name (secs) (bytes) (secs) Repeats Err %
--------- ------- ---------- ------- ------- ------
ac 8.07 54576 8.11 2 0.0062
aermod 175.22 1472624 18.83 2 0.1647
air 25.65 89992 6.78 5 0.1871
capacita 14.02 109536 40.36 2 0.0483
channel 3.11 34448 2.94 5 0.6012
doduc 29.46 224584 27.44 2 0.0437
fatigue 9.85 77032 2.74 2 0.0365
gas_dyn 26.09 144112 4.68 5 0.6928
induct 24.32 189696 14.24 2 0.1193
linpk 3.13 21536 21.69 2 0.0254
mdbx 9.18 84776 12.55 2 0.0678
nf 34.14 124640 18.38 2 0.1034
protein 28.14 155624 35.48 2 0.0789
rnflow 43.93 204176 26.70 2 0.0262
test_fpu 21.90 141696 11.18 2 0.0045
tfft 1.71 22072 3.29 5 0.1369
Geometric Mean Execution Time = 11.60 seconds
================================================================================
Date & Time : 17 Apr 2011 11:50:20
Test Name : pbharness
Compile Command : gfc %n.f90 -Ofast -funroll-loops -ftree-loop-linear
-fomit-frame-pointer -finline-limit=600 -fwhole-program -flto -fstack-arrays -o
%n
Benchmarks : ac aermod air capacita channel doduc fatigue gas_dyn induct
linpk mdbx nf protein rnflow test_fpu tfft
Maximum Times : 300.0
Target Error % : 0.200
Minimum Repeats : 2
Maximum Repeats : 5
Benchmark Compile Executable Ave Run Number Estim
Name (secs) (bytes) (secs) Repeats Err %
--------- ------- ---------- ------- ------- ------
ac 8.06 54576 8.11 2 0.0062
aermod 175.54 1480632 18.92 2 0.0106
air 25.36 89992 6.76 2 0.0740
capacita 13.95 109536 40.32 2 0.0161
channel 3.13 34448 2.95 5 0.1703
doduc 27.31 212280 27.18 2 0.0331
fatigue 9.82 77032 2.74 2 0.0182
gas_dyn 24.86 144112 4.67 5 0.3052
induct 24.25 189696 14.21 2 0.0035
linpk 2.55 21536 21.69 2 0.0023
mdbx 9.17 84776 12.53 2 0.0239
nf 34.21 124640 18.41 4 0.1634
protein 28.01 155624 35.46 2 0.0310
rnflow 38.11 183696 26.74 2 0.0037
test_fpu 19.63 141720 10.84 2 0.0323
tfft 1.69 22072 3.29 2 0.0152
Geometric Mean Execution Time = 11.57 seconds
================================================================================
