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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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| -<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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| -<P><B>Usage Summary</B></P>
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| - <P><TT>collperf -help</TT>
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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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| -<P><B>Example</B></P>
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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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Chromium Code Reviews
Issue 2435373002:
Delete source/test (Closed)
