Slapd Performance wrt Query Size

Test Environment

OpenLDAP server (slapd V 2.0.27 ) installed on a Intel(R) Xeon(TM) CPU 2.40GHz with 1GB of RAM running Scientific Linux 3. The size of the LDAP database is 20MB.

Test Description

Measure the response time measuring how many requests can be handled for a certain queried datasize. These are the query datasizes which are used in this test: no_result (query failure 0KB), 1KB,10KB, 150KB, 370KB, 1MB, 2MB, 3MB, 5MB, 8MB, 10MB, dump (full dump of the ldap db, 20MB) Each query represents the most used one by the users. This gives a more realistic view on how the load of the real LDAP instance (lcg-bdii.cern.ch) is.

Test Results

After gathering the data, the following diagrams were created using 'gnuplot'.

Performance Analysis with small query sizes

1K_10K_150K_370K_1M_requesttime.png 1K_10K_150K_370K_1M_requesttimeout.png

Performance Analysis with big query sizes

1M_3M_5M_8M_10M_dump_requesttime.png 1M_3M_5M_8M_10M_dump_requesttimeout.png

Edit | Attach | Watch | Print version | History: r3 < r2 < r1 | Backlinks | Raw View | WYSIWYG | More topic actions
Topic revision: r3 - 2008-02-26 - LaurenceField
 
    • Cern Search Icon Cern Search
    • TWiki Search Icon TWiki Search
    • Google Search Icon Google Search

    EGEE All webs login

This site is powered by the TWiki collaboration platform Powered by Perl This site is powered by the TWiki collaboration platformCopyright & by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki? Ask a support question or Send feedback