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Conference hydra::axp-developer

Title:Alpha Developer Support
Notice:[email protected], 800-332-4786
Moderator:HYDRA::SYSTEM
Created:Mon Jun 06 1994
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:3722
Total number of notes:11359

3332.0. "Cogit" by HYDRA::DORHAMER () Mon Mar 17 1997 14:37

    Company Name :  Cogit
    Contact Name :  John Wood
    Phone        :  415-908-1910
    Fax          :  
    Email        :  [email protected]
    Date/Time in :  17-MAR-1997 14:35:42
    Entered by   :  Karen Dorhamer
    SPE center   :  MRO

    Category     :  UNIX
    OS Version   :  
    System H/W   :  AlphaServer 8400


    Brief Description of Problem:
    -----------------------------

John has an AlphaServer 8400 with 8 GB of memory, but the applications
that they are developing are not able to malloc more than approx. 900 MB
of memory.  How can they allocate more memory?
T.RTitleUserPersonal
Name
DateLines
3332.1increase virtual memory parametersHYDRA::DORHAMERMon Mar 17 1997 14:526
    I told John which parameters to set in the sysconfigtab file to
    increase the virtual memory size available to user processes.
    I will follow this up with a mail message to make sure that he gets
    the correct spelling of these long parameter names.
    
    Karen
3332.2e-mail followupHYDRA::DORHAMERMon Mar 17 1997 15:1341
       #3          17-MAR-1997 15:10:45.90                                 
    NEWMAIL
    From:   HYDRA::AXPDEVELOPER "[email protected]"
    To:     US6RMC::"[email protected]"
    CC:     AXPDEVELOPER
    Subj:   Virtual memory parameters for Digital UNIX
    
    John,
    
    To follow up on our phone conversation, here is the list of entries that
    you need to add to the /etc/sysconfigtab file on your Digital UNIX system
    to increase the amount of virtual memory available to users.  This example
    sets maximum virtual memory to 4 GB.  To set higher or lower values, scale
    the number appropriately.
    
    vm:
    vm-maxvas = 4294967296
    
    proc:
    max-per-proc-address-space = 4294967296
    max-per-proc-data-size = 4294967296
    per-proc-data-size = 4294967296
    
    Reboot the system after modifying the sysconfigtab file.  You can check
    the values by issuing the commands:
    
    sysconfig -q vm
    sysconfig -q proc
    
    From a user account, use the c shell limit command to check on the size
    of datasize and addressspace for that account.  Issue the unlimit command to
    increase the limits to the maximum values allowed (i.e. to get the max value
    set in the sysconfigtab file).
    
    Please call or send e-mail to [email protected] if you need any
    further help.  Please reference log number 1997-3332 if you need further
    help for this particular problem.
    
    Karen Dorhamer
    Alpha Developer Support