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| <H2>collperf</H2> |
| <P>collperf is a test program for comparing collation performance and key lengths of ICU, Windows native collation |
| and Unix/POSIX collation. It operates on a file of lines (names, for example), and performs one of three tests:</P> |
| |
| <OL> |
| <LI>Sort Key generation. Report on key lengths and key generation times. |
| <LI>Binary search. Report the average time required to look up each of the names (file lines) from the file in |
| a sorted list of all of the names. |
| <LI>Quick Sort. Report the time required to sort the file in memory, using the C library qsort function. The file |
| order is randomized prior to the sort. |
| </OL> |
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| <P> |
| <P><B>Usage Summary</B></P> |
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| <BLOCKQUOTE> |
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| <P><TT>collperf -help</TT> |
| <BLOCKQUOTE> |
| <PRE><TT>Usage: strperf options... |
| -help Display this message. |
| -file file_name utf-16 format file of names |
| -locale name ICU locale to use. Default is en_US |
| -langid 0x1234 Windows Language ID number. Default 0x409 (en_US) |
| see http://msdn.microsoft.com/library/psdk/winbase/nls_8xo3.htm |
| -win Run test using Windows native services. (ICU is default) |
| -unix Run test using Unix strxfrm, strcoll services. |
| -uselen Use API with string lengths. Default is null-terminated strings |
| -usekeys Run tests using sortkeys rather than strcoll |
| -loop nnnn Loopcount for test. Adjust for reasonable total running time. |
| -terse Terse numbers-only output. Intended for use by scripts. |
| -french French accent ordering |
| -norm Normalizing mode on |
| -shifted Shifted mode |
| -lower Lower case first |
| -upper Upper case first |
| -case Enable separate case level |
| -level n Sort level, 1 to 5, for Primary, Secndary, Tertiary, Quaternary, Identical |
| -binsearch Binary Search timing test |
| -keygen Sort Key Generation timing test |
| -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> |
| file "latin.txt", 7604 lines.<BR> |
| Sort Key Generation: total # of keys = 197704<BR> |
| Sort Key Generation: time per key = 4253 ns<BR> |
| Key Length / character = 1.730054</TT></TD> |
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