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| 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) 2002-2008, International B
usiness Machines Corporation and others. All Rights Reserved."> |
| 7 <META NAME="GENERATOR" Content="Visual Page 2.0 for Windows"> |
| 8 <TITLE>collperf</TITLE> |
| 9 </HEAD> |
| 10 |
| 11 <BODY BGCOLOR="white"> |
| 12 |
| 13 <H2>collperf</H2> |
| 14 <P>collperf is a test program for comparing collation performance and key length
s of ICU, Windows native collation |
| 15 and Unix/POSIX collation. It operates on a file of lines (names, for example), a
nd performs one of three tests:</P> |
| 16 |
| 17 <OL> |
| 18 <LI>Sort Key generation. Report on key lengths and key generation times. |
| 19 <LI>Binary search. Report the average time required to look up each of t
he names (file lines) from the file in |
| 20 a sorted list of all of the names. |
| 21 <LI>Quick Sort. Report the time required to sort the file in memory, usi
ng the C library qsort function. The file |
| 22 order is randomized prior to the sort. |
| 23 </OL> |
| 24 |
| 25 <P> |
| 26 <P><B>Usage Summary</B></P> |
| 27 |
| 28 <BLOCKQUOTE> |
| 29 <P> |
| 30 <TABLE BORDER="0" WIDTH="100%" BGCOLOR="#FFFBF0"> |
| 31 <TR> |
| 32 <TD WIDTH="100%"> |
| 33 <P><TT>collperf -help</TT> |
| 34 <BLOCKQUOTE> |
| 35 <PRE><TT>Usage: strperf options... |
| 36 -help Display this message. |
| 37 -file file_name utf-16 format file of names |
| 38 -locale name ICU locale to use. Default is en_US |
| 39 -langid 0x1234 Windows Language ID number. Default 0x409 (en_US) |
| 40 see http://msdn.microsoft.com/library/psdk/winbase/nls_8x
o3.htm |
| 41 -win Run test using Windows native services. (ICU is default) |
| 42 -unix Run test using Unix strxfrm, strcoll services. |
| 43 -uselen Use API with string lengths. Default is null-terminated s
trings |
| 44 -usekeys Run tests using sortkeys rather than strcoll |
| 45 -loop nnnn Loopcount for test. Adjust for reasonable total running t
ime. |
| 46 -terse Terse numbers-only output. Intended for use by scripts. |
| 47 -french French accent ordering |
| 48 -norm Normalizing mode on |
| 49 -shifted Shifted mode |
| 50 -lower Lower case first |
| 51 -upper Upper case first |
| 52 -case Enable separate case level |
| 53 -level n Sort level, 1 to 5, for Primary, Secndary, Tertiary, Quat
ernary, Identical |
| 54 -binsearch Binary Search timing test |
| 55 -keygen Sort Key Generation timing test |
| 56 -qsort Quicksort timing test</TT></PRE> |
| 57 </BLOCKQUOTE> |
| 58 </TD> |
| 59 </TR> |
| 60 </TABLE> |
| 61 </P> |
| 62 </BLOCKQUOTE> |
| 63 |
| 64 <P><B>Example</B></P> |
| 65 |
| 66 <BLOCKQUOTE> |
| 67 <P> |
| 68 <TABLE BORDER="0" WIDTH="100%" BGCOLOR="#FFFBF0"> |
| 69 <TR> |
| 70 <TD WIDTH="100%"><TT>C:\>collperf -loop 200 -file lat
in.txt -keygen -shifted -level 4<BR> |
| 71 file "latin.txt", 7604 lines.<BR> |
| 72 Sort Key Generation: total # of keys = 197704<BR
> |
| 73 Sort Key Generation: time per key = 4253 ns<BR> |
| 74 Key Length / character = 1.730054</TT></TD> |
| 75 </TR> |
| 76 </TABLE> |
| 77 |
| 78 </BLOCKQUOTE> |
| 79 |
| 80 <P> |
| 81 |
| 82 </BODY> |
| 83 |
| 84 </HTML> |
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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/