On 01/17/2017 03:56 PM, Nicolas Ecarnot wrote: > Hello, > > On a 3.6.5 DC, I'm trying to figure out how many VMs there are, using > two methods : > > _*Python SDK :*_ > > *from ovirtsdk.xml import params > from ovirtsdk.api import API > api = API(url='https://engine.fqdn/ovirt-engine/api', > username='admin@internal', password='xxx', insecure=True) > print len(api.vms.list())* > > time ./getMvm.py > 62 > > real 0m23.016s > user 0m22.288s > sys 0m0.054s > > > _*REST :*_ > > *time curl -H "Version: 3" -H "Prefer: persistent-auth" -H "Filter: > false" -H "Accept: application/xml" -H "Content-Type: application/xml" > -k -u 'admin@internal:xxx' https://***engine.fqdn*/ovirt-engine/api/vms* > > (Then grep or anything that would get the values from the xml returned.) > > real 0m0.383s > user 0m0.036s > sys 0m0.038s > > > I am a beginner in both methods, but I would prefer play with Python. > I'm very surprised to have to wait more than 20 seconds to get an answer. > Looking at the engine log, I see that the authentication part is > finished after say 3 seconds, then 20 seconds with absolutely no error > message, no CPU load, no RAM burst, no nothing. > On the SPM, exactly triple null nothing nada niet void is obviously > explaining such a delay. > > I'm wondering if this super hyper sluggishness is somewhat related to > the GUI global slowness I'm experiencing like other users since we left > 3.2.x, and I would love that some oVirt ninja uses the comparison above > to tell what parts in oVirt is used or not that could explain such a > difference (database, access to SPM, LVM, network access, whatever...) > > -- > Nicolas ECARNOT >
The performance problem is inside version 3 of the Python SDK. That is one of the reasons that we had to do a new version of the Python SDK for version 4 of the engine. If you are using version 4 of the engine then you can use version 4 of the SDK: https://github.com/oVirt/ovirt-engine-sdk/tree/master/sdk https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/list_vms.py It should be much faster. Would be nice if you can repeat your test and report the results. _______________________________________________ Users mailing list [email protected] http://lists.ovirt.org/mailman/listinfo/users
