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* [kvm-ppc-devel] Profile kvmppc - #2 - guest idles two minutes in
@ 2008-04-04 11:03 Christian Ehrhardt
  0 siblings, 0 replies; only message in thread
From: Christian Ehrhardt @ 2008-04-04 11:03 UTC (permalink / raw)
  To: kvm-ppc

Well without real perf counters it's semi-useless (might be misleading) but anyway here what I got so far - #2 - guest idles two minutes in shell prompt:

bash-3.00# opreport --session-dir=/mnt/usb/oprofile_idle/
CPU: CPU with timer interrupt, speed 0 MHz (estimated)
Profiling through timer interrupt
          TIMER:0|
  samples|      %|
------------------
     4818     nan vmlinux.host
       36     nan qemu-system-ppcemb.viob_v1
       26     nan libc-2.3.5.so
        9     nan bash
        7     nan ld-2.3.5.so
        5     nan oprofiled
        4     nan libpthread-2.3.5.so
        1     nan librt-2.3.5.so
        1     nan libpopt.so.0.0.0

Details:
bash-3.00# opreport --session-dir=/mnt/usb/oprofile_idle/ -l
CPU: CPU with timer interrupt, speed 0 MHz (estimated)
Profiling through timer interrupt
samples  %        app name                 symbol name
1625         nan  vmlinux.host             cpu_idle
1325         nan  vmlinux.host             kvmppc_handle_exit
730          nan  vmlinux.host             finish_task_switch
600          nan  vmlinux.host             tick_nohz_stop_sched_tick
129          nan  vmlinux.host             kvmppc_emulate_instruction
102          nan  vmlinux.host             tick_nohz_restart_sched_tick
63           nan  vmlinux.host             schedule
39           nan  vmlinux.host             do_softirq
31           nan  vmlinux.host             __do_softirq
27           nan  vmlinux.host             run_timer_softirq
26           nan  libc-2.3.5.so            (no symbols)
20           nan  vmlinux.host             ksoftirqd
14           nan  vmlinux.host             hrtimer_run_pending
10           nan  vmlinux.host             _cond_resched
9            nan  bash                     (no symbols)
7            nan  ld-2.3.5.so              (no symbols)
7            nan  vmlinux.host             copy_page
4            nan  qemu-system-ppcemb.viob_v1 kvm_run
4            nan  vmlinux.host             do_page_fault
4            nan  vmlinux.host             sigprocmask
4            nan  vmlinux.host             sys_select
3            nan  qemu-system-ppcemb.viob_v1 __divdi3
3            nan  qemu-system-ppcemb.viob_v1 dynticks_rearm_timer
3            nan  qemu-system-ppcemb.viob_v1 kvm_arch_post_kvm_run
3            nan  qemu-system-ppcemb.viob_v1 kvm_main_loop_cpu
3            nan  qemu-system-ppcemb.viob_v1 post_kvm_run
3            nan  qemu-system-ppcemb.viob_v1 virtio_net_poll
3            nan  vmlinux.host             __flush_dcache_icache
3            nan  vmlinux.host             do_select
3            nan  vmlinux.host             do_vfs_ioctl
3            nan  vmlinux.host             do_wp_page
3            nan  vmlinux.host             getnstimeofday
3            nan  vmlinux.host             sys_rt_sigtimedwait
3            nan  vmlinux.host             sys_timer_settime
2            nan  libpthread-2.3.5.so      __pthread_mutex_unlock_usercnt
2            nan  qemu-system-ppcemb.viob_v1 __moddi3
2            nan  vmlinux.host             DoSyscall
2            nan  vmlinux.host             __mod_timer
2            nan  vmlinux.host             find_lock_page
2            nan  vmlinux.host             find_vma
2            nan  vmlinux.host             get_user_pages
2            nan  vmlinux.host             handle_IRQ_event
2            nan  vmlinux.host             kthread_should_stop
2            nan  vmlinux.host             kvmppc_44x_tlb_index
2            nan  vmlinux.host             sys_timer_gettime
2            nan  vmlinux.host             vm_normal_page
1            nan  libpopt.so.0.0.0         (no symbols)
1            nan  libpthread-2.3.5.so      __errno_location
1            nan  libpthread-2.3.5.so      __libc_sigaction
1            nan  librt-2.3.5.so           (no symbols)
1            nan  oprofiled                clear_trans_current
1            nan  oprofiled                odb_update_node
1            nan  oprofiled                opd_process_samples
1            nan  oprofiled                pop_buffer_value
1            nan  oprofiled                sfile_put
1            nan  qemu-system-ppcemb.viob_v1 dumb_refresh
1            nan  qemu-system-ppcemb.viob_v1 gui_update
1            nan  qemu-system-ppcemb.viob_v1 handle_io_window
1            nan  qemu-system-ppcemb.viob_v1 kvm_eat_signal
1            nan  qemu-system-ppcemb.viob_v1 main_loop_wait
1            nan  qemu-system-ppcemb.viob_v1 qemu_del_timer
1            nan  qemu-system-ppcemb.viob_v1 qemu_kvm_cpu_env
1            nan  qemu-system-ppcemb.viob_v1 qemu_mod_timer
1            nan  qemu-system-ppcemb.viob_v1 qemu_run_timers
1            nan  qemu-system-ppcemb.viob_v1 qemu_shutdown_requested
1            nan  qemu-system-ppcemb.viob_v1 tap_read_poll
1            nan  qemu-system-ppcemb.viob_v1 virtio_net_can_receive
1            nan  vmlinux.host             __copy_tofrom_user
1            nan  vmlinux.host             __kfree_skb
1            nan  vmlinux.host             __rpc_execute
1            nan  vmlinux.host             __wake_up_bit
1            nan  vmlinux.host             copy_page_range
1            nan  vmlinux.host             copy_siginfo_to_user
1            nan  vmlinux.host             core_sys_select
1            nan  vmlinux.host             csum_partial
1            nan  vmlinux.host             down_write
1            nan  vmlinux.host             emac_poll_tx
1            nan  vmlinux.host             filemap_fault
1            nan  vmlinux.host             find_extend_vma
1            nan  vmlinux.host             find_next_bit
1            nan  vmlinux.host             find_vma_prev
1            nan  vmlinux.host             gfn_to_hva
1            nan  vmlinux.host             handle_mm_fault
1            nan  vmlinux.host             handle_page_fault
1            nan  vmlinux.host             ip_generic_getfrag
1            nan  vmlinux.host             ktime_get_ts
1            nan  vmlinux.host             kvm_arch_vcpu_ioctl_run
1            nan  vmlinux.host             kvmppc_check_and_deliver_interrupts
1            nan  vmlinux.host             kvmppc_emulate_dec
1            nan  vmlinux.host             kvmppc_mmu_map
1            nan  vmlinux.host             lock_sock_nested
1            nan  vmlinux.host             lock_timer_base
1            nan  vmlinux.host             mark_page_accessed
1            nan  vmlinux.host             mprotect_fixup
1            nan  vmlinux.host             mutex_lock
1            nan  vmlinux.host             nfs_permission
1            nan  vmlinux.host             normal_poll
1            nan  vmlinux.host             ppc_select
1            nan  vmlinux.host             remove_wait_queue
1            nan  vmlinux.host             rpcauth_lookup_credcache
1            nan  vmlinux.host             rt_hash_code
1            nan  vmlinux.host             sys_ioctl
1            nan  vmlinux.host             sys_read
1            nan  vmlinux.host             syscall_dotrace_cont
1            nan  vmlinux.host             tty_ldisc_deref
1            nan  vmlinux.host             udp_push_pending_frames
1            nan  vmlinux.host             udp_sendmsg
1            nan  vmlinux.host             unmap_vmas
1            nan  vmlinux.host             unx_marshal
1            nan  vmlinux.host             vfs_ioctl


-- 

Grüsse / regards, 
Christian Ehrhardt
IBM Linux Technology Center, Open Virtualization

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2008-04-04 11:03 [kvm-ppc-devel] Profile kvmppc - #2 - guest idles two minutes in Christian Ehrhardt

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