How can I get sysprof to show me the kernel call tree?

[Peter Portante <peter a portante gmail com>]

Hello Folks,

Just found out about sysprof. Like its presentation and ease of use 
installing. Was trivial to get it installed on RHEL 6.2 (v1.1.8).

I am wondering how I can get it to show me the call tree for the kernel.

Here is a screen shot of my system (from sysprof's screen shot):

- - kernel - - 0.00% 94.87%
finish_task_switch 49.09% 49.09%
_spin_unlock_irqrestore 18.93% 18.93%
generic_exec_single 13.45% 13.45%
kvm_arch_vcpu_ioctl_run 3.83% 3.83%
update_shares 1.28% 1.28%
thread_return 0.77% 0.77%
fget_light 0.54% 0.54%
copy_user_generic_string 0.39% 0.39%
do_select 0.24% 0.24%

Here is is what a perf top -d 5 -z is showing me:

   PerfTop:   14483 irqs/sec  kernel:97.3%  exact:  0.0% [1000Hz cycles],  (all, 16 CPUs)

----------------------------------------------------------------------------------------------------------------------------------
             samples  pcnt function                      DSO

             _______ _____ _____________________________ ___________________________________________________________________

            28116.00 38.9% _spin_lock                    /usr/lib/debug/lib/modules/2.6.32-220.el6.x86_64/vmlinux

            12143.00 16.8% tg_load_down                  /usr/lib/debug/lib/modules/2.6.32-220.el6.x86_64/vmlinux

             4910.00  6.8% generic_exec_single           /usr/lib/debug/lib/modules/2.6.32-220.el6.x86_64/vmlinux

             4083.00  5.6% _spin_lock_irq                /usr/lib/debug/lib/modules/2.6.32-220.el6.x86_64/vmlinux

             3860.00  5.3% load_balance_fair             /usr/lib/debug/lib/modules/2.6.32-220.el6.x86_64/vmlinux

             2898.00  4.0% update_cfs_load               /usr/lib/debug/lib/modules/2.6.32-220.el6.x86_64/vmlinux

             2881.00  4.0% _spin_lock_irqsave            /usr/lib/debug/lib/modules/2.6.32-220.el6.x86_64/vmlinux

             2320.00  3.2% update_shares                 /usr/lib/debug/lib/modules/2.6.32-220.el6.x86_64/vmlinux

             1260.00  1.7% update_cfs_shares             /usr/lib/debug/lib/modules/2.6.32-220.el6.x86_64/vmlinux

             1020.00  1.4% vmx_vcpu_run                  /lib/modules/2.6.32-220.el6.x86_64/kernel/arch/x86/kvm/kvm-intel.ko

And here is what a perf record/report sequence is showing me:

-     22.24%      qemu-kvm  [kernel.kallsyms]              [k] _spin_lock                                                         ↑

   - _spin_lock                                                                                                                   ▮

      - 55.19% double_lock_balance                                                                                                ▒

         - thread_return                                                                                                          ▒

            - 56.90% kvm_vcpu_block                                                                                               ▒

                 kvm_arch_vcpu_ioctl_run                                                                                          ▒

                 kvm_vcpu_ioctl                                                                                                   ▒

                 vfs_ioctl                                                                                                        ▒

                 do_vfs_ioctl                                                                                                     ▒

                 sys_ioctl                                                                                                        ▒

                 system_call                                                                                                      ▒

                 __GI___ioctl                                                                                                     ▒

            - 43.09% schedule_hrtimeout_range                                                                                     ▒

                 poll_schedule_timeout                                                                                            ▒

                 do_select                                                                                                        ▒

                 core_sys_select                                                                                                  ▒

                 sys_select                                                                                                       ▒

                 system_call                                                                                                      ▒

               + __GI_select                                                                                                      ▒

      + 32.46% task_rq_lock                                                                                                       ▒

      + 5.94% scheduler_tick                                                                                                      ▒

      + 5.72% try_to_wake_up                                                                                                      ▒

      + 0.51% thread_return                                                                                                       ▒

+     13.61%      qemu-kvm  [kernel.kallsyms]              [k] tg_load_down                                                       ▒

+     12.19%    kvm-pit-wq  [kernel.kallsyms]              [k] _spin_lock                                                         ▒

+      6.26%      qemu-kvm  [kernel.kallsyms]              [k] generic_exec_single                                                ▒


Thanks ahead of time for any help you can offer.

-peter