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| | 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."> |
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| | 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> |
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projects / apple / icu.git / blame_incremental