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-rw-r--r--src/tests/stringspeed.cpp122
1 files changed, 122 insertions, 0 deletions
diff --git a/src/tests/stringspeed.cpp b/src/tests/stringspeed.cpp
new file mode 100644
index 0000000..5636de7
--- /dev/null
+++ b/src/tests/stringspeed.cpp
@@ -0,0 +1,122 @@
1#include <bu/string.h>
2
3#include <sys/time.h>
4#include <stdio.h>
5
6void timeit( void (*func)(), const char *sName, int iIter )
7{
8 struct timeval ts, te;
9
10 gettimeofday( &ts, NULL );
11 for( int j = 0; j < iIter; j++ )
12 {
13 func();
14 }
15 gettimeofday( &te, NULL );
16
17 double dTotal = (double)(te.tv_sec-ts.tv_sec) + (double)(te.tv_usec-ts.tv_usec)/1000000.0;
18 printf("%10s: %f spi (%f total)\n", sName, dTotal/iIter, dTotal );
19}
20
21void append1()
22{
23 Bu::String sTmp;
24 for( int c = 0; c < 5000; c++ )
25 {
26 sTmp += (char)(c%256);
27 }
28}
29
30void append2()
31{
32 Bu::String sTmp;
33 for( int c = 0; c < 5000; c++ )
34 {
35 sTmp.append( (char)(c%256) );
36 }
37}
38
39void append3()
40{
41 Bu::String sTmp;
42 for( int c = 0; c < 5000; c++ )
43 {
44 sTmp += "Test";
45 }
46}
47
48void append4()
49{
50 Bu::String sTmp;
51 for( int c = 0; c < 5000; c++ )
52 {
53 sTmp.append("Test");
54 }
55}
56
57void append5()
58{
59 Bu::String sTmp, sAdd("Test");
60 for( int c = 0; c < 5000; c++ )
61 {
62 sTmp += sAdd;
63 }
64}
65
66void append6()
67{
68 Bu::String sTmp, sAdd("Test");
69 for( int c = 0; c < 5000; c++ )
70 {
71 sTmp.append( sAdd );
72 }
73}
74
75void prepend1()
76{
77 Bu::String sTmp;
78 for( int c = 0; c < 5000; c++ )
79 {
80 sTmp.prepend('c');
81 }
82}
83
84void copy1()
85{
86 Bu::String sSrc;
87 for( int c = 0; c < 1000; c++ )
88 {
89 sSrc += (char)(c%256);
90 Bu::String sTmp = sSrc;
91 sTmp.append( '-' );
92 }
93}
94
95void copy2()
96{
97 Bu::String sSrc;
98 for( int c = 0; c < 1000; c++ )
99 {
100 sSrc += (char)(c%256);
101 Bu::String sTmp = sSrc;
102 }
103}
104
105void replace1()
106{
107 Bu::String s("Hey, this is a replacement test, what do you thing of it?");
108 s.replace("e", "X").replace("a", "X").replace("what","XXX");
109}
110
111int main()
112{
113 timeit( append1, "Append1", 5000 );
114 timeit( append2, "Append2", 5000 );
115 timeit( append3, "Append3", 2000 );
116 timeit( append4, "Append4", 2000 );
117 timeit( append4, "Prepend1", 2000 );
118 timeit( copy1, "Copy1", 2000 );
119 timeit( copy2, "Copy2", 2000 );
120 timeit( replace1, "Replace1", 10000 );
121}
122