hyperic-hq-discuss

[Hyperic-hq-discuss] problem with sigar_resource_limit_get !!!!!!!

[rahma <sig...@hy...>]

hello,
i am using sigar in a C++ project.
i want to mesure max available ressources. so i used sigar_resource_limit_get, Unfortunately I came across this problem: for different parameters (memory, cpu, ...) the current value is equal to max one wich is not correct.
for example :
cout << "current memory used : " << rlimit.memory_cur << endl;
cout << "max memory : " << rlimit.memory_max << endl; 
it shows the same value.
cout << "current processes : " << rlimit.processes_cur << endl;
cout << "max processes : " << rlimit.processes_max << endl;
shows the same value.
and this is for all attributes in sigar_resource_limit_t struct.

any comments or explications please????????

Re: [Hyperic-hq-discuss] problem with sigar_resource_limit_get !!!!!!!

[Doug M. <do...@hy...>]

Sounds like you're on a Windows platform, correct?  On unix platforms the majority of resource_limit fields come from the standard getrlimit() function.  getrlimit() does not exist on Windows, nor do most of the said limits.  If you have pointers to any windows APIs or tools that display such limits, please let us know.

Re: [Hyperic-hq-discuss] problem with sigar_resource_limit_get !!!!!!!

[rahma <sig...@hy...>]

yes, am using vista OS.

the problem is that i need to collect percentage consommation information. concerning memory information, i used "sigar_mem_get(sigar, &mem)", and then "mem.used_percent", but i can't have cpu percentage use. i thing combining cpu_cur and cpu_max using "sigar_resource_limit_get"  function so that [cpu_used_percent = (cpu_cur*100)/cpu_max] .

unfortunatelly my idea don't work in windows plateform as you mention. 
so have you any other proposition to get cpu percentage use?
thanks in advance.

Re: [Hyperic-hq-discuss] problem with sigar_resource_limit_get !!!!!!!

[Doug M. <do...@hy...>]

resource_limit would't help there.  Have a look at the hypertable code again:

http://github.com/nuggetwheat/hypertable/blob/master/src/cc/Common/SystemInfo.cc#L254

sigar_cpu_perc_calculate gives you sigar_cpu_perc_t.combined which is the total % cpu used for the given sample time.

Re: [Hyperic-hq-discuss] problem with sigar_resource_limit_get !!!!!!!

[rahma <sig...@hy...>]

okay, excellent. thanks a lot "dougm".

Re: [Hyperic-hq-discuss] problem with sigar_resource_limit_get !!!!!!!

[rahma <sig...@hy...>]

waw the code is too complicated and many file to be used!!!!!!!!!!!!!!!!!

Re: [Hyperic-hq-discuss] problem with sigar_resource_limit_get !!!!!!!

[Doug M. <do...@hy...>]

Not sure what you mean exactly, are you referring to the hypertable code?  I wasn't recommending using the hypertable code as-is, just as a reference on howto use sigar_cpu_perc_calculate()