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15<H2>collperf</H2>
16<P>collperf is a test program for comparing collation performance and key lengths of ICU, Windows native collation
17and Unix/POSIX collation. It operates on a file of lines (names, for example), and performs one of three tests:</P>
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19<OL>
20 <LI>Sort Key generation. Report on key lengths and key generation times.
21 <LI>Binary search. Report the average time required to look up each of the names (file lines) from the file in
22 a sorted list of all of the names.
23 <LI>Quick Sort. Report the time required to sort the file in memory, using the C library qsort function. The file
24 order is randomized prior to the sort.
25</OL>
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27<P>
28<P><B>Usage Summary</B></P>
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30<BLOCKQUOTE>
31 <P>
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35 <P><TT>collperf -help</TT>
36 <BLOCKQUOTE>
37 <PRE><TT>Usage: strperf options...
38-help Display this message.
39-file file_name utf-16 format file of names
40-locale name ICU locale to use. Default is en_US
41-langid 0x1234 Windows Language ID number. Default 0x409 (en_US)
42 see http://msdn.microsoft.com/library/psdk/winbase/nls_8xo3.htm
43-win Run test using Windows native services. (ICU is default)
44-unix Run test using Unix strxfrm, strcoll services.
45-uselen Use API with string lengths. Default is null-terminated strings
46-usekeys Run tests using sortkeys rather than strcoll
47-loop nnnn Loopcount for test. Adjust for reasonable total running time.
48-terse Terse numbers-only output. Intended for use by scripts.
49-french French accent ordering
50-norm Normalizing mode on
51-shifted Shifted mode
52-lower Lower case first
53-upper Upper case first
54-case Enable separate case level
55-level n Sort level, 1 to 5, for Primary, Secndary, Tertiary, Quaternary, Identical
56-binsearch Binary Search timing test
57-keygen Sort Key Generation timing test
58-qsort Quicksort timing test</TT></PRE>
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66<P><B>Example</B></P>
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68<BLOCKQUOTE>
69 <P>
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72 <TD WIDTH="100%"><TT>C:\>collperf -loop 200 -file latin.txt -keygen -shifted -level 4<BR>
73 file "latin.txt", 7604 lines.<BR>
74 Sort Key Generation: total # of keys = 197704<BR>
75 Sort Key Generation: time per key = 4253 ns<BR>
76 Key Length / character = 1.730054</TT></TD>
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