https://issues.dlang.org/show_bug.cgi?id=14571
ag0ae...@gmail.com changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |performance CC| |ag0ae...@gmail.com Hardware|x86_64 |All OS|Windows |All --- Comment #1 from ag0ae...@gmail.com --- A little shell script with a reduced test case: ---- > times for i in `seq 2 2 60` do cat > test.d << code struct InputPoint { double position; } struct GrowableArray { InputPoint[$i*1024] data; } code (echo -n "$i "; time -f %U dmd -c test.d 2>&1) | tee -a times done gnuplot -e 'set terminal dumb; plot "times"' ---- Output: ---- 2 0.01 4 0.04 6 0.08 8 0.13 10 0.22 12 0.30 14 0.40 16 0.53 18 0.70 20 0.87 22 1.04 24 1.32 26 1.50 28 1.82 30 2.15 32 2.62 34 3.22 36 4.05 38 5.19 40 6.23 42 7.68 44 10.13 46 10.97 48 11.97 50 14.07 52 22.59 54 24.41 56 26.22 58 33.27 60 33.24 35 ++----------+----------+-----------+-----------+----------+----------++ + + + + + "times" A A A | | 30 ++ ++ | | 25 ++ A ++ | A | | A | 20 ++ ++ | | | | 15 ++ A ++ | | | A A | 10 ++ A ++ | A | 5 ++ A A ++ | A A | + + + A A A A A A + + + 0 ++A--A-A-A--A-A-A--A-A-A-----------+-----------+----------+----------++ 0 10 20 30 40 50 60 ---- That looks quadratic. Eww. --