Tokyo Cabinet 1.3.15 (Default branch) Post: 302251345

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Special Forums News, Links, Events and Announcements Software Releases - RSS News Tokyo Cabinet 1.3.15 (Default branch) Post 302251345 by Linux Bot on Sunday 26th of October 2008 09:20:12 PM

10-26-2008

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Tokyo Cabinet 1.3.15 (Default branch)

Tokyo Cabinet is a library of routines for managing a database. It is the successor of QDBM. Tokyo Cabinet runs very fast. For example, the time required to store 1 million records is 1.5 seconds for a hash database and 2.2 seconds for a B+ tree database. Moreover, the database size is very small. For example, the overhead for a record is 16 bytes for a hash database, and 5 bytes for a B+ tree database. Furthermore, the scalability of Tokyo Cabinet is great. The database size can be up to 8EB.License: GNU Lesser General Public License (LGPL)Changes:
Performance of the hash function was improved.Perl and Ruby interfaces of the network serverwere added. Bugs regarding compilation on BSD andSolaris were fixed.

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tcfmttest

TCFMTTEST(1)							   Tokyo Cabinet						      TCFMTTEST(1)

NAME

       tcfmttest - test cases of the fixed-length database API

DESCRIPTION

       The command `tcfmttest' is a utility for facility test under multi-thread situation.  This command is used in the following format.  `path'
       specifies the path of a database file.  `tnum' specifies the number of  running	threads.   `rnum'  specifies  the  number  of  iterations.
       `width' specifies the width of the value of each record.  `limsiz' specifies the limit size of the database file.

	      tcfmttest write [-nl|-nb] [-rnd] path tnum rnum [width [limsiz]]
		     Store records with keys of 8 bytes.  They change as `00000001', `00000002'...
	      tcfmttest read [-nl|-nb] [-wb] [-rnd] path tnum
		     Retrieve all records of the database above.
	      tcfmttest remove [-nl|-nb] [-rnd] path tnum
		     Remove all records of the database above.
	      tcfmttest wicked [-nl|-nb] [-nc] path tnum rnum
		     Perform updating operations selected at random.
	      tcfmttest typical [-nl|-nb] [-nc] [-rr num] path tnum rnum [width [limsiz]]
		     Perform typical operations selected at random.

       Options feature the following.

	      -nl : enable the option `FDBNOLCK'.
	      -nb : enable the option `FDBLCKNB'.
	      -rnd : select keys at random.
	      -wb : use the function `tcfdbget4' instead of `tcfdbget2'.
	      -nc : omit the comparison test.
	      -rr num : specifiy the ratio of reading operation by percentage.

       This command returns 0 on success, another on failure.

SEE ALSO

       tcftest(1), tcfmgr(1), tcfdb(3), tokyocabinet(3)

Man Page							    2011-02-12							      TCFMTTEST(1)