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Full Discussion: Please Help With NMON Data
Operating Systems AIX Please Help With NMON Data Post 302398844 by nibbsbitt on Thursday 25th of February 2010 07:05:12 PM
Old 02-25-2010
Please Help With NMON Data
Hi guys, I am an Oracle DBA and I have an account with some databases on an AIX 5.3 server. I am trying to figure out if I really need to add memory to this box or not, the account team keeps pushing me to make a decision and I don't want to waste their money if I don't need to right now, we could spend it elsewhere that need it more.

Don't think I haven't bothered to look up stuff and read, I have been a lot. I started an nmon cron report 24 hours ago, then I downloaded the Nmon Analyzer for Excel, what it does is takes the nmon report and convert it into easy to read graphs. Attached to this post is an excel sheet with 3 sheets, one for MEM, MEMNEW, and MEMUSE. I have read up on paging, the free list, virtual vs. physical, but I just haven't been able to fully comprehend all the facets of it. Can one of you who is good with AIX just take a quick peak at this spreadsheet and give me your opinion? I would appreciate your advice much. Thanks.
memory_nmon_graph.zip (548.3 KB) 
 

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LEARN ABOUT CENTOS

perf-mem

PERF-MEM(1)							    perf Manual 						       PERF-MEM(1)

NAME

       perf-mem - Profile memory accesses

SYNOPSIS

       perf mem [<options>] (record [<command>] | report)

DESCRIPTION

       "perf mem -t <TYPE> record" runs a command and gathers memory operation data from it, into perf.data. Perf record options are accepted and
       are passed through.

       "perf mem -t <TYPE> report" displays the result. It invokes perf report with the right set of options to display a memory access profile.

OPTIONS

       <command>...
	   Any command you can specify in a shell.

       -t, --type=
	   Select the memory operation type: load or store (default: load)

       -D, --dump-raw-samples=
	   Dump the raw decoded samples on the screen in a format that is easy to parse with one sample per line.

       -x, --field-separator
	   Specify the field separator used when dump raw samples (-D option). By default, The separator is the space character.

       -C, --cpu-list
	   Restrict dump of raw samples to those provided via this option. Note that the same option can be passed in record mode. It will be
	   interpreted the same way as perf record.

SEE ALSO

       perf-record(1), perf-report(1)

perf								    06/30/2014							       PERF-MEM(1)
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