topic Re: Physcial Memory in Operating System - HP-UX

Physcial Memory

Scott McDade — Tue, 02 Aug 2005 08:18:24 GMT

Hello:

I have a C3750 system running 11i. I am trying to figure out how much physical memory I have. Is there a command that I can use instead of having to go thru SAM?

-Scott

Re: Physcial Memory

Kent Ostby — Tue, 02 Aug 2005 08:19:04 GMT

grep Physical /var/adm/syslog/syslog.log

Re: Physcial Memory

DCE — Tue, 02 Aug 2005 08:21:11 GMT

dmesg works as well

Re: Physcial Memory

mirco_1 — Tue, 02 Aug 2005 08:26:35 GMT

hy,

# echo "selclass qualifier memory;info;wait;infolog"|cstm

or

# dmesg |grep Physical

DM.

Re: Physcial Memory

Torsten. — Tue, 02 Aug 2005 08:26:44 GMT

have a look at this thread:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=943674

Re: Physcial Memory

Pete Randall — Tue, 02 Aug 2005 08:28:47 GMT

My canned answer for system properties:

If you have Ignite installed, you can use the print_manifest command.

You can also use SAM to display system properties (Sam -> Performance
Monitors -> System Properties).

There are also utilities like "cfg2html" ( http://come.to/cfg2html ),
"nickel" ( ftp://ftp.hp.com/pub/catia/Utils/nickel.shar ) and "sysinfo"
( http://hpux.cs.utah.edu/hppd/hpux/Sysadmin/sysinfo-3.3.1/ ).

Finally, you can also obtain this information from the command line with a
series of little scripts like these:

CPU

HPUX=/stand/vmunix

MODEL=$(grep -i $(model | tr "/" " " \
| awk '{print $NF}') \
/usr/sam/lib/mo/sched.models \
| awk '{print $NF}')

MHZ=$(echo itick_per_tick/D \
| adb -k $HPUX /dev/kmem \
| tail -1 \
| awk '{print $2/10000}')
echo `hostname` has `ioscan -k |grep -n processor \
|wc -l` $MODEL $MHZ "Mhz processor(s)"

Number of CPUs

ioscan -k |grep -n processor |wc -l

RAM

HPUX=/stand/vmunix
MAJORREV=$(uname -r | cut -f2 -d .)
if [ $MAJORREV -ge "11.0" ]
then
MYSYMBOL="phys_mem_pages"
else
MYSYMBOL="physmem"
fi

MYMEM=$(echo "${MYSYMBOL}/D" \
| adb $HPUX /dev/kmem \
| grep "${MYSYMBOL}: *." \
| awk '{printf "%.0f MB\n",$2/256}')
echo $MYMEM

Pete

Re: Physcial Memory

Geoff Wild — Tue, 02 Aug 2005 09:51:08 GMT

And here's a script called hpmem that uses adb:

# cat /usr/local/bin/hpmem
#!/bin/ksh
#
# Taken from the HP/UniGraphics FAQ
# You must be ROOT to execute this since it uses adb to
# examine the running kernel
#
GetKernelSymbol()
{
echo "$1/D" | \
adb $hpux /dev/kmem | \
tr "\012" " " | \
read junk junk2 kval
}
hpux=/hp-ux
rev=$(uname -r | cut -d. -f2)
if ((rev > 9)); then hpux=/stand/vmunix ;fi
/bin/uname -a
GetKernelSymbol "processor_count"
print CPU Count: $kval
GetKernelSymbol "itick_per_tick"
let speed=kval/10000
print CPU Speed: $speed MHz
if ((rev > 10)); then
print CPU HW Support: `getconf HW_CPU_SUPP_BITS`-bit
print Kernel Support: `getconf KERNEL_BITS`-bit
GetKernelSymbol "memory_installed_in_machine"
else
GetKernelSymbol "physmem"
fi
ver=$(uname -r | cut -d. -f3)
# if 11iv2 or higher - get memory this way
if ((ver > 22)); then
kernel=$(/usr/sbin/kcpath -x)
hexval=$(echo "phys_mem_pages/A" | adb $kernel /dev/kmem|tail +2|awk '{print $2}')
REAL_MEM=$(echo ${hexval}=D|adb)
mb=$(expr ${REAL_MEM} / 256)
else
let mb=kval*4/1024 # convert pages to MB
fi
print RAM Size: $mb MB
GetKernelSymbol "bufpages"
let mb=kval*4/1024 # convert pages to MB
print bufpages: $mb MB
GetKernelSymbol "maxuprc"
print maxuprc: $kval
GetKernelSymbol "maxvgs"
print maxvgs: $kval
GetKernelSymbol "maxfiles"
print maxfiles: $kval
GetKernelSymbol "max_thread_proc"
print max_thread_proc: $kval
GetKernelSymbol "nfile"
print nfile: $kval
GetKernelSymbol "nproc"
print nproc: $kval
GetKernelSymbol "ninode"
print ninode: $kval
GetKernelSymbol "vfd_cw"
print shmmax: $kval
GetKernelSymbol "shmmni"
print shmmni: $kval
GetKernelSymbol "dbc_max_pct"
print dbc_max_pct: $kval

Rgds...Geoff

Re: Physcial Memory

Geoff Wild — Tue, 02 Aug 2005 09:52:28 GMT

Oh - and here's how to do it with perl - without needing root access:

# cat memttl
perl -e 'local($PSTAT,$PSTAT_STATIC,$mem_info,$PSTAT_STRUCT)=(239,2,"\0"x120,"LI4L");
syscall($PSTAT,$PSTAT_STATIC,$mem_info,length($mem_info),1,0);
print "RAM=".int((unpack($PSTAT_STRUCT,$mem_info))[4]*((unpack($PSTAT_STRUCT,$mem_info))[5])/(1024*1024))." MB\n";'

Rgds...Geoff

Re: Physcial Memory

KRS_1 — Tue, 02 Aug 2005 09:57:57 GMT

you can do simply going thru sam.

Performance Monitor -> System properties

select Memory tab

or

# dmesg |grep -i physical

Thanks
KRS