[Interest] Qtcontainerbench std::vector vs QVector

[Gunnar Roth]

Hi,
for whom it may concern i post my results for vector iterating using iterator and index plus insert via push_back.

the test code is at  https://github.com/gunrot/qtcontainerbench <https://github.com/gunrot/qtcontainerbench> in branch vector. it runs over N containers where N=min(1,100000/countofelements)
on my OS X 10.10.5 xcode 3.6 13 inch retina apple notebook(2013)


Commandline was 
LANG=C ./qtcontainerbench  testCase_iterate_vector -csv

Time is in ms.



stdvector_fwd_it               
5
0,13671875
stdvector_fwd_it               
10
0,12890625
stdvector_fwd_it               
20
0,126953125
stdvector_fwd_it               
40
0,099609375
stdvector_fwd_it               
50
0,083984375
stdvector_fwd_it               
80
0,095703125
stdvector_fwd_it               
100
0,0859375
stdvector_fwd_it               
1000
0,072265625
stdvector_fwd_it               
10000
0,08203125
stdvector_fwd_it               
100000
0,076171875
stdvector_fwd_it               
1000000
1,078125
QVector_fwd_it                 
5
0,23046875
QVector_fwd_it                 
10
0,20703125
QVector_fwd_it                 
20
0,23828125
QVector_fwd_it                 
40
0,234375
QVector_fwd_it                 
50
0,19921875
QVector_fwd_it                 
80
0,22265625
QVector_fwd_it                 
100
0,18359375
QVector_fwd_it                 
1000
0,1640625
QVector_fwd_it                 
10000
0,17578125
QVector_fwd_it                 
100000
0,18359375
QVector_fwd_it                 
1000000
1,65625
stdvector_fwd_idx              
5
0,140625
stdvector_fwd_idx              
10
0,107421875
stdvector_fwd_idx              
20
0,09375
stdvector_fwd_idx              
40
0,107421875
stdvector_fwd_idx              
50
0,0947265625
stdvector_fwd_idx              
80
0,107421875
stdvector_fwd_idx              
100
0,1044921875
stdvector_fwd_idx              
1000
0,0771484375
stdvector_fwd_idx              
10000
0,0830078125
stdvector_fwd_idx              
100000
0,080078125
stdvector_fwd_idx              
1000000
1,03125
QVector_fwd_idx                
5
0,203125
QVector_fwd_idx                
10
0,21484375
QVector_fwd_idx                
20
0,21484375
QVector_fwd_idx                
40
0,189453125
QVector_fwd_idx                
50
0,166015625
QVector_fwd_idx                
80
0,16796875
QVector_fwd_idx                
100
0,15234375
QVector_fwd_idx                
1000
0,146484375
QVector_fwd_idx                
10000
0,1796875
QVector_fwd_idx                
100000
0,14453125
QVector_fwd_idx                
1000000
1,75
stdvector_pushback            
5
14
stdvector_pushback            
10
11,25
stdvector_pushback            
20
9,625
stdvector_pushback            
40
7,625
stdvector_pushback            
50
7
stdvector_pushback            
80
6,75
stdvector_pushback            
100
6,4375
stdvector_pushback            
1000
5,4375
stdvector_pushback            
10000
5,4375
stdvector_pushback            
100000
5,6875
stdvector_pushback            
1000000
55
QVector_pushback              
5
14
QVector_pushback              
10
14,5
QVector_pushback              
20
13,75
QVector_pushback              
40
11,625
QVector_pushback              
50
10,375
QVector_pushback              
80
11,875
QVector_pushback              
100
10,125
QVector_pushback              
1000
9,875
QVector_pushback              
10000
10
QVector_pushback              
100000
10,75
QVector_pushback              
1000000
97


My conclusion from this is to use std::vector. Only if i really need the implicit sharing property , because i cannot move, i would choose QVector.

Regards,
Gunnar Roth




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