1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> 2 <HTML> 3 4 <HEAD> 5 <META HTTP-EQUIV="Content-Type" CONTENT="text/html;CHARSET=iso-8859-1"> 6 <meta name="Copyright" content="Copyright (C) 2016 and later: Unicode, Inc. and others. 7 License & terms of use: http://www.unicode.org/copyright.html#License 8 Copyright (c) 2002-2008, International Business Machines Corporation and others. All Rights Reserved."> 9 <META NAME="GENERATOR" Content="Visual Page 2.0 for Windows"> 10 <TITLE>collperf</TITLE> 11 </HEAD> 12 13 <BODY BGCOLOR="white"> 14 15 <H2>collperf</H2> 16 <P>collperf is a test program for comparing collation performance and key lengths of ICU, Windows native collation 17 and Unix/POSIX collation. It operates on a file of lines (names, for example), and performs one of three tests:</P> 18 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> 26 27 <P> 28 <P><B>Usage Summary</B></P> 29 30 <BLOCKQUOTE> 31 <P> 32 <TABLE BORDER="0" WIDTH="100%" BGCOLOR="#FFFBF0"> 33 <TR> 34 <TD WIDTH="100%"> 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> 59 </BLOCKQUOTE> 60 </TD> 61 </TR> 62 </TABLE> 63 </P> 64 </BLOCKQUOTE> 65 66 <P><B>Example</B></P> 67 68 <BLOCKQUOTE> 69 <P> 70 <TABLE BORDER="0" WIDTH="100%" BGCOLOR="#FFFBF0"> 71 <TR> 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> 77 </TR> 78 </TABLE> 79 80 </BLOCKQUOTE> 81 82 <P> 83 84 </BODY> 85 86 </HTML> 87
