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https://www.ibm.com/support/knowledgecenter/SSEPGG_10.5.0/com.ibm.db2.luw.admin.dbobj.doc/doc/t0010405.html
To enable large page support in DB2 database systems on AIX operating systems:. Configure your AIX server for large page support by issuing the vmo command with the following flags: vmo -r -o lgpg_size=LargePageSize-o lgpg_regions=LargePages Where LargePageSize specifies the size in bytes of the hardware-supported large pages, and LargePages specifies the number of large pages to …
https://www.ibm.com/support/knowledgecenter/SSEPGG_11.1.0/com.ibm.db2.luw.admin.dbobj.doc/doc/t0010405.html
In addition to the traditional page size of 4 KB, the POWER7 processors (and higher) on IBM® Power Systems also support variable page sizes. Applications such as IBM Db2 Version 11.1 for AIX, that require intensive memory access and that use large amounts of virtual memory can gain performance improvements by using large pages.
https://blog.pythian.com/enabling-large-pages-oracle-database-11g-running-ibm-aix/
Apr 04, 2016 · For implementing Large Pages on AIX first you will need to choose large page size at OS level. On AIX you can have multiple large page sizes of 4KB, 64KB, 16MB, and 16GB. In this example we will be using a large page size of 16MB. Steps for implemenatation: 1- Based on MOS Doc ID 372157.1 first you need to enable Large Pages at OS level
https://support.oracle.com/knowledge/Oracle%20Database%20Products/372157_1.html
IBM AIX on POWER Systems (64-bit) Goal. To enable Large Page Feature on AIX-Based Systems like AIX V5.1 OS when running on IBM POWER4 or POWER5 processors, pSeries systems support Large Page. See: Oracle Database Administrator's Reference 10g Release 2 (10.2) for UNIX-Based Operating Systems Part Number B15658-05-or-
http://www.dba-oracle.com/t_oracle_large_pages.htm
May 30, 2015 · Question: I hear that Oracle large page support can be important to I/O but I don't understand about large pages in Oracle.How do large pages work? Can I enable large pages in Windows? Answer: Oracle large pages are functionally equivalent to huge pages in Linux.Large pages are an operating system construct similar to RAM "fencing" which pins the RAM, making it ineligible …
http://www-01.ibm.com/support/docview.wss?uid=swg21986164
To enable the DB2 database system to use them, you must first configure the operating system to use large or huge pages. To enable large pages for agent private memory on 64-bit DB2 for AIX (the DB2_LARGE_PAGE_MEM=PRIVATE setting), you must configure large pages on the operating system and the instance owner must possess the CAP_BYPASS_RAC_VMM ...
http://www-01.ibm.com/support/docview.wss?uid=isg3T1023245
Support of Large Files in AIX. Technote (FAQ) Question. How do I configure AIX to support files greater than 2 GB (gigabytes)? Answer. This TechNote addresses the file size limitations and configuration changes that are necessary for writing, uncompressing or creating a file over 2 gigabytes (GB).
https://community.oracle.com/thread/356275
Aug 10, 2009 · Nice day Andreas, please do you have some solution for your issue, because I think I have similar problem, I set on AIX vmo -r -o lgpg_regions=192 -o lgpg_size=16777216 vmo -o v_pinshm=1 I see in svmon -G this output PageSize PoolSize inuse pgsp pin virtual s 4 KB - 1104431 2456 685141 874874 L 16 MB 192 0 0 192 0 these (16MB large pages) are free but when I want run …
https://knowledgebase.progress.com/articles/Article/P13786
How to check if large file support is enabled for a file system on AIX How to check if a file system has large file support enabled on AIX platforms ? Database has EnableLargeFiles, but does the filesystem support it ? Does the file system have OS large file support enabled ?
https://techgoeasy.com/large-memory-pages-for-oracle-on-aix/
Oct 02, 2013 · AIX support two virtual page sizes: 4 kilobytes (standard page) and 16 megabytes (large page). When using large pages to map virtual memory, there are fewer page boundaries, which improve the performance of prefetching. Both online transaction processing (OLTP) and data warehouse environments can benefit from using large pages.
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