This is a discussion on vmtune and memory pools within the AIX Operating System forums, part of the Unix Operating Systems category; --> In the Performance Overview of the Virtual Memory Manager (VMM) section of the Performance Management Guide it states the ...
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| In the Performance Overview of the Virtual Memory Manager (VMM) section of the Performance Management Guide it states the following: "Real memory is split into evenly sized memory pools based on the number of CPUs and the amount of RAM... use the vmtune -m <number of memory pools> command to change the number of memory pools that will be configured at system boot." When I run the vmtune -A command I get the following information: 3145728 memory pages 2935008 lruable pages 4505 free pages 3 memory pools 578276 pinned pages 80.1 maxpin percentage 20.0 minperm percentage 80.0 maxperm percentage 29.0 numperm percentage 853839 file pages 0.0 compressed percentage 0 compressed pages 31.7 numclient percentage 80.0 maxclient percentage 931861 client pages 0 remote pageouts scheduled 0 pending disk I/Os blocked with no pbuf 0 paging space I/Os blocked with no psbuf 2740 filesystem I/Os blocked with no fsbuf 0 client filesystem I/Os blocked with no fsbuf 6160 external pager filesystem I/Os blocked with no fsbuf I have 6 processors on the server: proc0 Available 00-00 Processor proc1 Available 00-01 Processor proc2 Available 00-02 Processor proc3 Available 00-03 Processor proc6 Available 00-06 Processor proc7 Available 00-07 Processor The svmon command shows: size inuse free pin virtual memory 3145728 3142606 3122 578322 2431895 pg space 3145728 380654 work pers clnt lpage pin 578322 0 0 0 in use 2210383 0 932223 0 What effect to memory would there be if the number of memory pools were increased to 6? |