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UNIX for Dummies Questions & Answers
Cutting a limited or given set of records in a datbase
Post 3686 by PxT on Monday 9th of July 2001 05:07:52 PM
07-09-2001
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back at this forum again. Have a tab separated file like this ---
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LEARN ABOUT CENTOS
tchtest
TCHTEST(1) Tokyo Cabinet TCHTEST(1) NAME
tchtest - test cases of the hash database API DESCRIPTION
To use the hash database API easily, the commands `tchtest', `tchmttest', and `tchmgr' are provided. The command `tchtest' is a utility for facility test and performance test. This command is used in the following format. `path' specifies the path of a database file. `rnum' specifies the number of iterations. `bnum' specifies the number of buckets. `apow' specifies the power of the alignment. `fpow' specifies the power of the free block pool. tchtest write [-mt] [-tl] [-td|-tb|-tt|-tx] [-rc num] [-xm num] [-df num] [-nl|-nb] [-as] [-rnd] path rnum [bnum [apow [fpow]]] Store records with keys of 8 bytes. They change as `00000001', `00000002'... tchtest read [-mt] [-rc num] [-xm num] [-df num] [-nl|-nb] [-wb] [-rnd] path Retrieve all records of the database above. tchtest remove [-mt] [-rc num] [-xm num] [-df num] [-nl|-nb] [-rnd] path Remove all records of the database above. tchtest rcat [-mt] [-tl] [-td|-tb|-tt|-tx] [-rc num] [-xm num] [-df num] [-nl|-nb] [-pn num] [-dai|-dad|-rl|-ru] path rnum [bnum [apow [fpow]]] Store records with partway duplicated keys using concatenate mode. tchtest misc [-mt] [-tl] [-td|-tb|-tt|-tx] [-nl|-nb] path rnum Perform miscellaneous test of various operations. tchtest wicked [-mt] [-tl] [-td|-tb|-tt|-tx] [-nl|-nb] path rnum Perform updating operations selected at random. Options feature the following. -mt : call the function `tchdbsetmutex'. -tl : enable the option `HDBTLARGE'. -td : enable the option `HDBTDEFLATE'. -tb : enable the option `HDBTBZIP'. -tt : enable the option `HDBTTCBS'. -tx : enable the option `HDBTEXCODEC'. -rc num : specify the number of cached records. -xm num : specify the size of the extra mapped memory. -df num : specify the unit step number of auto defragmentation. -nl : enable the option `HDBNOLCK'. -nb : enable the option `HDBLCKNB'. -as : use the function `tchdbputasync' instead of `tchdbput'. -rnd : select keys at random. -wb : use the function `tchdbget3' instead of `tchdbget'. -pn num : specify the number of patterns. -dai : use the function `tchdbaddint' instead of `tchdbputcat'. -dad : use the function `tchdbadddouble' instead of `tchdbputcat'. -rl : set the length of values at random. -ru : select update operations at random. This command returns 0 on success, another on failure. SEE ALSO
tchmttest(1), tchmgr(1), tchdb(3), tokyocabinet(3) Man Page 2012-08-18 TCHTEST(1)