Caculate CPU load using PSTAT

[Mark Ma_4]

i am in the process of develop a simple system that monitor system load.and i am using C programing and PSTAT system call to do it not shell script.the target is HP-UX 11i.

my question is ,how to caculate CPU load using pstat field.

i have think that psd_avg_1_min could show the system load in last mins.it seems that i make a big mistake.maybe i still havn't full understand PSTAT system call.
anyone suggestion will be appreciate.

P.S. i think the same problem will happens when i caculate MEM threshold ,DISK load as well.so where can i find the formula of caculate all the resource by PSTAT struct fields ?is it a secert of HP ?

wish my describtion is clearly.thanks & reagrds

Mark

[curt larson_1]

you could just down load the source code for top
http://hpux.connect.org.uk/hppd/hpux/Sysadmin/top-3.5beta12/

and take a look and see how they did it

[Mark Ma_4]

i've check that source code , while it havnt using PSTAT system call .anyway ,thank u for that.and i think the source code will be helpful sometimes later.

any suggestion about caculate CPU/MEM/DISK utilization by PSTAT system call's stuct field?

[curt larson_1]

well it doesn't use the pstat function call specifically, it uses the pstat_getdynamic system call to do this.
check the machine.c file

[Hemanth Gurunath Basrur]

Hello Mark,

Refer to the foll. links for info

http://docs.hp.com/hpux/onlinedocs/os/11i/pstat_whitepaper.pdf

http://h21007.www2.hp.com/dspp/tech/tech_TechByTypePage_IDX/1,4690,40107-0,00.html

http://h21007.www2.hp.com/dspp/srch/srch_SearchResut_IDX/1,1694,,00.html?qtext=pstat&criteria=0&col=&lk=1&rf=0&fld=3&nh=10&fdt=in&fin=an&amo=&ady=&ayr=&bmo=&bdy=&byr=&st=1&qt=%2Bpstat&topic=&qtextbox=

http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,2575,00.html

Hope this helps.

Regards,
Hemanth

[Mark Ma_4]

thanks for your search page. expecially for Curt's source top.

[Mark Ma_4]

sorry,after re-searching the resource you give me ,i still have no idea that how can i get the DISK's utilization in program.

any suggestion ?