I am assigned the task of optimizing one PERL code which takes approx. 18 hours to execute. I have read the entire code and found that the code reads around 55000 to 60000 entries from LDAP Server and then fetch them into a HASH ed_en and then updates/creates entries in LDAP Server.

Hash structure is like this: 
%ed_en = { '069836' => 'p1',
            '025939' => 'p2',
... }

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#with p1 a pointer (ie address like 0x123454) towards the corresponding entry received from ldap_search #with p2 a pointer (ie address like 0x123456) towards the corresponding entry received from ldap_search 

%p1 = { 'dn' => 'st-eduid=ed988766,ou=People,dc=xyz,dc=com }
%p2 = { 'dn' => 'st-eduid=ed123456,ou=People,dc=xyz,dc=com }

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Further, few hashes are created from this HASH for easier processing of the subroutines.

Systems uses version PERL 5.005_03 built for sun4-solaris.

Any help would be appreciated.

Thanks & Regards, Sukhi

In reply to Optimize my code with Hashes by sukhicool

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