ArcGIS Runtime QML application running slower with latest RHEL kernels

RainerFarsch — Tue, 09 Feb 2016 23:50:41 GMT

An application I've been developing in RHEL was running fine in RHEL 7.0 and 7.1. I've recently updated to RHEL 7.2 which upgraded the default kernel as well. I noticed that the application was now running noticeably slower. I then reverted to an older kernel and the application ran fine. I've been in contact with Red Hat and have sent them SOS reports, traces (ltrace and strace) and perf reports. They've identified 'libEsriRuntimeQt.so' as the potential cause of the slowdown. The application runs fine on the following "229" kernels:

kernel.x86_64 3.10.0-229.11.1.el7

kernel.x86_64 3.10.0-229.14.1.el7

kernel.x86_64 3.10.0-229.20.1.el7

And runs noticeably slower on the newer "327" kernels:

kernel.x86_64 3.10.0-327.el7

kernel.x86_64 3.10.0-327.3.1.el7

kernel.x86_64 3.10.0-327.4.4.el7

kernel.x86_64 3.10.0-327.4.5.el7

Anyone have any ideas on why 'libEsriRuntimeQt.so' runs slower on the new kernels?

Thanks!

Re: ArcGIS Runtime QML application running slower with latest RHEL kernels

LucasDanzinger — Wed, 10 Feb 2016 21:09:58 GMT

Hi Rainer,

Pretty interesting, not sure what the cause would be. The best thing to do is probably to contact Esri support so they can set up reproducible test cases and compare the performance differences to narrow down where the issue may be.

-Luke

topic ArcGIS Runtime QML application running slower with latest RHEL kernels in Qt Maps SDK Questions

ArcGIS Runtime QML application running slower with latest RHEL kernels

Re: ArcGIS Runtime QML application running slower with latest RHEL kernels