• Cortex-A35 performance for DDR3 read accesses
    Hi, I am using iMX 8X which has 1 cluster of 4 Cortex-A35 cores, with DDR3L (DDR3-1866) with ECC enabled. I performed some measurement for MEMCPY and MEMSET functions to have an estimate of the...
  • Cortex A9 CPU self-tests
      Hi! I am currently working in a project with a Freescale i.MX6 (Cortex A9) board. The system has to be certified against the ISO 13849 standard and my job is to implement software diagnostics in accordance...
  • Using PMU on cortex-a9 CPU
    Folks, I am trying to run linux 'perf' on a new board with 2 ARM cortex-a9 CPUs. After compiling the kernel to include perf tool, i run 'perf stat true' and it returns valid stats. But when I run 'perf...
  • Aarch32 app performance on ARMv8a device
    Hi , I am running aarch32 app in ARMv8a( cortex-a57 ) device.  The performance reports ( using gettimeofday() utility ), showing  large spikes on random calls. But the same app on ARMv7a( cortex-a15 ...