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    SubjectRe: loaded router, excessive getnstimeofday in oprofile
    Date
    On Friday 22 August 2008, Denys Fedoryshchenko wrote:

    Most significant event types where i notice getnstimeofday at top of list.

    Additions:
    Counted MEMORY_REQUESTS events (Memory requests by type) with a unit mask of
    0x01 (Requests to non-cacheable (UC) memory) count 5000
    samples % samples % symbol name
    129 31.0843 596 31.1879 getnstimeofday
    54 13.0120 251 13.1345 __napi_schedule
    36 8.6747 178 9.3145 default_idle
    34 8.1928 164 8.5819 irq_entries_start
    23 5.5422 143 7.4830 __do_softirq

    and
    CPU: AMD64 processors, speed 2193.74 MHz (estimated)
    Counted INTERRUPTS_MASKED_CYCLES events (Cycles with interrupts masked (IF=0))
    with a unit mask of 0x00 (No unit mask) count 5000
    samples % symbol name
    630015 62.4741 getnstimeofday
    28634 2.8394 get_next_timer_interrupt
    23279 2.3084 __slab_alloc
    15775 1.5643 schedule
    14765 1.4641 __slab_free
    11154 1.1061 native_read_tsc
    10953 1.0861 kmem_cache_alloc
    10918 1.0827 tick_nohz_stop_sched_tick
    10752 1.0662 update_wall_time
    10430 1.0343 net_rx_action
    10220 1.0134 __do_softirq
    9895 0.9812 __update_sched_clock


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