Messages in this thread | | | From | Denys Fedoryshchenko <> | Subject | Re: loaded router, excessive getnstimeofday in oprofile | Date | Fri, 22 Aug 2008 05:23:28 +0300 |
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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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