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ArcGIS Runtime QML application running slower with latest RHEL kernels

Question asked by farschr on Feb 9, 2016
Latest reply on Feb 10, 2016 by LDanzinger-esristaff

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 '' 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 '' runs slower on the new kernels?