Aix Multiple Page Size Support

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Multiple page size support - IBM

    https://www.ibm.com/support/knowledgecenter/en/ssw_aix_71/performance/multiple_page_size_support.html?origURL=ssw_aix_71/com.ibm.aix.performance/multiple_page_size_support.htm
    The POWER5+ processor supports four virtual memory page sizes: 4 KB, 64 KB, 16 MB, and 16 GB. The IBM Power Systems processor-based servers also support using 64 KB pages in segments with base page size 4 KB. AIX uses this process to provide the performance benefits of 64 KB pages when useful or resorting to 4 KB pages where 64 KB pages would waste too much memory, such as allocated but …

Guide to Multiple Page Size Support on AIX 5L Version 5

    https://unixhealthcheck.com/files/systems_p_os_aix_whitepapers_multiple_page.pdf
    aixtrmultiplepagewp030206.doc 3 64KB Page Size Support On POWER5+ systems, AIX 5L Version 5.3 with the 5300-04 Recommended Maintenance Package supports a new …

UNIX Health Check - AIX Multiple page size support

    https://unixhealthcheck.com/blog?id=241
    To list the supported page sizes on a system: # pagesize -a 4096 65536 16777216 17179869184 # pagesize -af 4K 64K 16M 16G To learn more about the multiple page size support for AIX, please read the related whitepaper here. If you found this useful, here's more on the same topic(s) in our blog:

Multiple page size application support - IBM

    https://www.ibm.com/support/knowledgecenter/en/ssw_aix_71/performance/multiple_page_size_app_support.html?origURL=ssw_aix_71/com.ibm.aix.performance/multiple_page_size_app_support.htm
    Multiple page size application support considerations Issues concerning 32-bit processes, thread stacks, shared libraries, or large page data can affect the ability of AIX to support multiple page sizes.

Technical Notes IBM Oracle International Competency Center ...

    http://www-03.ibm.com/support/techdocs/atsmastr.nsf/5cb5ed706d254a8186256c71006d2e0a/67c2ad200b888dc286257a690013c53c/$FILE/IBM%20AIX%20and%20Oracle%20DB%20Performance%20Considerations%2003_12_2015.pdf
    Technical Notes IBM Oracle International Competency Center (ICC) March 12, 2015 email address: ... Technical sales support database Guide to Multiple Page Size Support on AIX 5L Version 5.3 ... 64 KB page size for data, text, and stack regions is useful in environments with a

TUNING: memory page sizes - UNIX & Linux Forums

    https://www.unix.com/aix/40005-tuning-memory-page-sizes.html
    The problem is that tuning questions are platform specific and we are a little short on AIX experts. But in general, large page sizes can waste a large percentage of a large page for every memory segment and that is the only downside. With 13 GB of physical memory you probably want a large page size and this is especially true with Oracle running.

Oracle tuning for AIX Optimization

    http://www.dba-oracle.com/t_ibm_aix_tuning.htm
    Oracle AIX Tuning Optimization. Also see these notes on Managing Oracle disk I/O in AIX.. The IBM AIX operating system can be optimized for Oracle databases as noted in this IBM whitepaper titled "Tuning IBM AIX 5L for an Oracle Database".Also, the TPC benchmarks for Oracle AIX are an excellent was to find optimal Oracle AIX parameter settings. Also see:

how to use large pages in AIX with oracle Oracle Community

    https://community.oracle.com/thread/356275
    Aug 10, 2009 · Hi, i'm trying to convince oracle to use large pages on AIX 5.3 but haven't suceeded so far. i set v_pinshm=1, maxpin%=80, lgpg_regions=448 and lgpg_size=16777216 using 'vmo' and 'LOCK_SGA=true' in spfile. after rebooting and starting the instance 'svmon' shows no no large pages in use: # svmon size inuse free pin virtual memory 4046848 3711708 335140 2911845 1503108 pg …

Tuning AIX for Oracle Hyperion and Essbase Products

    http://www-01.ibm.com/support/docview.wss?uid=tss1wp102365&aid=1
    was then requested to be dynamically loaded and unloaded multiple times. 64K Page Size Support On POWER5+ systems, AIX 5L Version 5.3 with the 5300-04 Recommended Maintenance Package supports a new 64KB page size when running the 64-bit kernel. AIX 5L has rich support around 64KB



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