Re: [pcp] Fetch User CPU Usage as a Percentage?

[Rohan Arora <rarora2012@xxxxxxxxx>]

Nevermind, sorry about that, realized I was just forgetting to get the descs with context.pmLookupDescs.

Thanks,

Rohan

On Thu, Jul 30, 2015 at 1:26 PM Rohan Arora <rarora2012@xxxxxxxxx> wrote:

So dropping the new files in seems to have worked fine. All of the .py files are from version 3.10.5. Now I am running into some trouble trying to create the Metric objects. I use the following code to create the MetricCore objects:

metrics = (

   Â"mem.physmem",

   Â"mem.util.used",

   Â"kernel.all.cpu.idle",

   Â"kernel.all.cpu.sys",

   Â"kernel.all.cpu.user"

  )

context = pmapi.pmContext(PM_CONTEXT_HOST, "127.0.0.1")

metric_ids = context.pmLookupName(metrics)

metric_cores = []

for i in range(len(metrics)):

metric_cores.append(pmcc.MetricCore(context, metrics[i], metric_ids[i]))

Now, if I try to make a Metric object using the following:

metrics = []

for core in metric_cores:

metrics.append(pmcc.Metric(core))

I get an error, because in the constructor for the Metric class, the following lines fail:

self._convType = core.desc.contents.type

self._convUnits = core.desc.contents.units

This is due to core.desc not being defined, so I get None as the result for it. Am I creating the MetricCore objects incorrectly?

Thanks,

Rohan

On Thu, Jul 30, 2015 at 10:55 AM Rohan Arora <rarora2012@xxxxxxxxx> wrote:

I am using 3.9.4 as that was what installed through "yum" but I have the source from git. I will try to see if I can just replace the older Python files for the new ones.

Thanks,

Rohan

On Thu, Jul 30, 2015 at 10:09 AM Lukas Berk <lberk@xxxxxxxxxx> wrote:

Hi,

Rohan Arora <rarora2012@xxxxxxxxx> writes:
> As far as I can tell, there is no metricConvert() function defined in
> pmcc.py. Is it available in the Python version of pmcc?

In the current upstream source it should be defined as:
src/python/pcp/pmcc.py:237:Â Â def metricConvert(self, delta):

git blame points to it being present since at least Oct 2014, so
depending on what version of PCP you're using (3.10.0+ aiui),
metricConvert() should be available.

Cheers,

Lukas