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| + <meta name="Copyright" content="Copyright (c) 2002-2008, International Business Machines Corporation and others. All Rights Reserved.">
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| + <META NAME="GENERATOR" Content="Visual Page 2.0 for Windows">
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| + <TITLE>collperf</TITLE>
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| +<H2>collperf</H2>
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| +<P>collperf is a test program for comparing collation performance and key lengths of ICU, Windows native collation
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| +and Unix/POSIX collation. It operates on a file of lines (names, for example), and performs one of three tests:</P>
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| +
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| +<OL>
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| + <LI>Sort Key generation. Report on key lengths and key generation times.
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| + <LI>Binary search. Report the average time required to look up each of the names (file lines) from the file in
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| + a sorted list of all of the names.
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| + <LI>Quick Sort. Report the time required to sort the file in memory, using the C library qsort function. The file
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| + order is randomized prior to the sort.
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| +</OL>
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| +
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| +<P>
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| +<P><B>Usage Summary</B></P>
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| +
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| +<BLOCKQUOTE>
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| + <P>
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| + <TABLE BORDER="0" WIDTH="100%" BGCOLOR="#FFFBF0">
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| + <TR>
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| + <TD WIDTH="100%">
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| + <P><TT>collperf -help</TT>
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| + <BLOCKQUOTE>
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| + <PRE><TT>Usage: strperf options...
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| +-help Display this message.
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| +-file file_name utf-16 format file of names
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| +-locale name ICU locale to use. Default is en_US
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| +-langid 0x1234 Windows Language ID number. Default 0x409 (en_US)
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| + see http://msdn.microsoft.com/library/psdk/winbase/nls_8xo3.htm
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| +-win Run test using Windows native services. (ICU is default)
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| +-unix Run test using Unix strxfrm, strcoll services.
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| +-uselen Use API with string lengths. Default is null-terminated strings
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| +-usekeys Run tests using sortkeys rather than strcoll
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| +-loop nnnn Loopcount for test. Adjust for reasonable total running time.
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| +-terse Terse numbers-only output. Intended for use by scripts.
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| +-french French accent ordering
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| +-norm Normalizing mode on
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| +-shifted Shifted mode
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| +-lower Lower case first
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| +-upper Upper case first
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| +-case Enable separate case level
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| +-level n Sort level, 1 to 5, for Primary, Secndary, Tertiary, Quaternary, Identical
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| +-binsearch Binary Search timing test
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| +-keygen Sort Key Generation timing test
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| +-qsort Quicksort timing test</TT></PRE>
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| + </BLOCKQUOTE>
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| + </TD>
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| + </TR>
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| + </TABLE>
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| +</P>
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| +</BLOCKQUOTE>
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| +
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| +<P><B>Example</B></P>
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| +
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| +<BLOCKQUOTE>
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| + <TABLE BORDER="0" WIDTH="100%" BGCOLOR="#FFFBF0">
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| + <TD WIDTH="100%"><TT>C:\>collperf -loop 200 -file latin.txt -keygen -shifted -level 4<BR>
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| + file "latin.txt", 7604 lines.<BR>
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| + Sort Key Generation: total # of keys = 197704<BR>
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| + Sort Key Generation: time per key = 4253 ns<BR>
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| + Key Length / character = 1.730054</TT></TD>
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| + </TR>
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| + </TABLE>
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| +</BLOCKQUOTE>
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Chromium Code Reviews
Issue 5516007:
Check in the pristine copy of ICU 4.6... (Closed)
Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/