Hi, I am trying to profile my native app on KitKat. For this, I built the kernel with oprofile enabled and I can see oprfile device files under /dev/oprofile/*. However, I am not able to start profiling and collect any data. While trying to start oprofile it fails with the following ______________________________________________________ shell@flo:/ # opcontrol --quick --verbose opcontrol --quick --verbose list_events = 0 setup = 0 idx: 20, name: CPU_CYCLES, mask: 07, ctr#: 0 event_id is 255 count_val is 150000 Configure /dev/oprofile/0/user (1) Configure /dev/oprofile/0/kernel (1) Configure /dev/oprofile/0/unit_mask (0) Configure /dev/oprofile/0/enabled (1) Configure /dev/oprofile/0/count (150000) Configure /dev/oprofile/0/event (255) Configure /dev/oprofile/1/enabled (0) Configure /dev/oprofile/2/enabled (0) Starting oprofiled... command: oprofiled --session-dir=/data/oprofile --events=CPU_CYCLES:255:0:150000:0:1:1 --no-vmlinux oprofiled: too many events passed. Failed, oprofile returned exit code: 256 _____________________________________________________________________
My Nexus 7 details are as follows cat /proc/cpuinfo Processor : ARMv7 Processor rev 0 (v7l) processor : 0 BogoMIPS : 13.53 processor : 1 BogoMIPS : 13.53 processor : 2 BogoMIPS : 13.53 processor : 3 BogoMIPS : 13.53 Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 CPU implementer : 0x51 CPU architecture: 7 CPU variant : 0x1 CPU part : 0x06f CPU revision : 0 Hardware : QCT APQ8064 FLO Revision : 0000 Serial : 0000000000000000 ________________________________________________ I would appreciate any help to enable/collect logs using oprofile on my nexux 7. Regards, Rishi -- -- unsubscribe: android-kernel+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-kernel --- You received this message because you are subscribed to the Google Groups "Android Linux Kernel Development" group. To unsubscribe from this group and stop receiving emails from it, send an email to android-kernel+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
