Hi,
I am trying to get OProfile working on Android I have built the kernel with make CONFIG_OPROFILE=y CONFIG_PROFILING=y CROSS_COMPILE=arm-none-eabi- uImage However, when I try to run it, it says the oprofiled is not running. Is there quick way to make sure that oprofiled is running? # echo 1 >/dev/oprofile/enable # opcontrol --status Driver directory: /dev/oprofile Session directory: /data/oprofile Counter 0 disabled Counter 1 disabled Counter 2 disabled oprofiled is not running On Feb 26, 4:13 pm, "Konig.Yuan" <[email protected]> wrote: > (1) opcontrol --setup, if it failed, theoProfileis not built in > your android kernel. > > you need to enable the CONFIG_OPROFILE=y CONFIG_PROFILING=y > CONFIG_OPROFILE_ARMV6=y > > (2) If the opcontrol --setup successed. cat /dev/oproflie/cpu_type > check whether it is arm/armv6 > > Seems google android supports arvm6 by default. > > (3) opcontrol --event TLB_MISS:150000 (you can change the events) > > (4) echo 1 >/dev/oprofile/enable to start profiling (seems > "opcontrol --start" not work). > > (5) opcontrol --status ,check whether oprofiled is runing or not > > (6) echo 0 >/dev/oprofile/enable to stop the profiling(seems > opcontrol --stop not work). > Sample data will be collected to /data/oprofile/samples/current/ > > On Feb 23, 5:22 pm, luyen <[email protected]> wrote: > > > an user has this question: > > > Does anyone try the tool "oprofile" in the source code folder > > "external". > > When I use command "oprofile-r start", it will show "Unable to open > > cpu_type file for reading Make sure you have done opcontrol --init" > > After I finish opcontrol --init, it show the same. > > Does I need to set up something first, there is no guide to tell how > > to use it. > > > from:http://androidcore.com/android-community.html?func=view&catid=22&id=17 > > > Does anyone has the answer? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
