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Date: Sun, 01 Apr 2007 18:00:24 -0400 From: Dave Sperry <dave_sperry@...e.org> To: Nivedita Singhvi <niv@...ibm.com> CC: linux-rt-users@...r.kernel.org, linux-kernel@...r.kernel.org, netdev <netdev@...r.kernel.org> Subject: Re: Poor UDP performance using 2.6.21-rc5-rt5 Nivedita Singhvi wrote: > Dave Sperry wrote: >> Hi > > (adding netdev to cc list) > >> I have a dual core Opteron machine that exhibits poor UDP performance >> (RT consumes more than 2X cpu) with the 2.6.21-rc5-rt5 as compared to >> 2.6.21-rc5. Top shows the IRQ handler consuming a lot of CPU. > > Dave, any chance you've got oprofile working on the -rt5? Yes, I have a opreport from about 15 seconds in the middle of the test below is the top of the report. > And I'm assuming nothing very different in the stats or errors > through both runs? correct. no errors, the throughput in the RT was less, I assume it was CPU bound. Thanks Dave. CPU: AMD64 processors, speed 2211.36 MHz (estimated) Counted CPU_CLK_UNHALTED events (Cycles outside of halt state) with a unit mask of 0x00 (No unit mask) count 100000 samples % image name app name symbol name 16375 13.2965 vmlinux vmlinux __sched_text_start 7820 6.3498 vmlinux vmlinux copy_user_generic_string 7019 5.6994 forcedeth.ko forcedeth nv_start_xmit_optimized 6733 5.4672 forcedeth.ko forcedeth nv_nic_irq_optimized 6572 5.3365 vmlinux vmlinux __switch_to 6440 5.2293 vmlinux vmlinux pfifo_fast_dequeue 5796 4.7063 vmlinux vmlinux handle_IRQ_event 4557 3.7003 vmlinux vmlinux ip_output 4452 3.6150 vmlinux vmlinux try_to_wake_up 3698 3.0028 forcedeth.ko forcedeth nv_tx_done_optimized 3599 2.9224 vmlinux vmlinux udp_sendmsg 3424 2.7803 vmlinux vmlinux reschedule_interrupt 3308 2.6861 vmlinux vmlinux IRQ0xc1_interrupt 3095 2.5131 vmlinux vmlinux ip_append_data 2835 2.3020 vmlinux vmlinux kmem_cache_free 2274 1.8465 vmlinux vmlinux thread_return 2080 1.6890 vmlinux vmlinux kfree 1864 1.5136 vmlinux vmlinux dev_queue_xmit 1862 1.5119 vmlinux vmlinux sock_sendmsg 1606 1.3041 libc-2.5.so libc-2.5.so __sendto_nocancel 1464 1.1888 vmlinux vmlinux memset_c 1439 1.1685 vmlinux vmlinux __ip_route_output_key 1344 1.0913 vmlinux vmlinux schedule 1167 0.9476 oprofiled oprofiled (no symbols) 1010 0.8201 vmlinux vmlinux sock_wfree 998 0.8104 vmlinux vmlinux memcpy_c 910 0.7389 vmlinux vmlinux __might_sleep 880 0.7146 vmlinux vmlinux system_call 735 0.5968 vmlinux vmlinux preempt_schedule_irq 726 0.5895 vmlinux vmlinux __bitmap_empty 722 0.5863 vmlinux vmlinux atomic_notifier_call_chain 701 0.5692 vmlinux vmlinux current_kernel_time 681 0.5530 vmlinux vmlinux release_sock 663 0.5384 vmlinux vmlinux rt_hash_code 660 0.5359 vmlinux vmlinux pfifo_fast_enqueue 618 0.5018 vmlinux vmlinux cpu_idle 617 0.5010 vmlinux vmlinux kthread_should_stop 601 0.4880 vmlinux vmlinux __alloc_skb 591 0.4799 oprofile oprofile (no symbols) 551 0.4474 vmlinux vmlinux __wake_up 505 0.4101 vmlinux vmlinux kfree_skbmem 494 0.4011 vmlinux vmlinux inet_sendmsg 450 0.3654 netperf netperf send_udp_stream 448 0.3638 vmlinux vmlinux __kfree_skb 391 0.3175 vmlinux vmlinux common_interrupt 366 0.2972 vmlinux vmlinux find_next_bit 346 0.2810 vmlinux vmlinux ret_from_intr 343 0.2785 vmlinux vmlinux fget_light 333 0.2704 vmlinux vmlinux retint_swapgs 327 0.2655 vmlinux vmlinux exit_intr 312 0.2533 vmlinux vmlinux tracesys 309 0.2509 vmlinux vmlinux rt_spin_lock_slowlock 306 0.2485 vmlinux vmlinux cond_resched_softirq_context 303 0.2460 vmlinux vmlinux retint_kernel 296 0.2404 vmlinux vmlinux cond_resched 256 0.2079 bash bash (no symbols) 252 0.2046 vmlinux vmlinux preempt_schedule 248 0.2014 vmlinux vmlinux int_ret_from_sys_call 242 0.1965 vmlinux vmlinux restore_args 226 0.1835 libc-2.5.so libc-2.5.so sendto 199 0.1616 vmlinux vmlinux copy_from_user 181 0.1470 vmlinux vmlinux notifier_call_chain 165 0.1340 forcedeth.ko forcedeth nv_rx_process_optimized 163 0.1324 vmlinux vmlinux int_very_careful 139 0.1129 libc-2.5.so libc-2.5.so __gconv_transform_utf8_internal 114 0.0926 vmlinux vmlinux __handle_mm_fault 114 0.0926 vmlinux vmlinux get_task_mm 104 0.0844 vmlinux vmlinux find_first_bit 103 0.0836 vmlinux vmlinux int_restore_rest 96 0.0780 vmlinux vmlinux dummy_socket_sendmsg 87 0.0706 vmlinux vmlinux copy_page_c 83 0.0674 jbd jbd (no symbols) 79 0.0641 vmlinux vmlinux clear_page_c 77 0.0625 vmlinux vmlinux exit_idle 76 0.0617 libc-2.5.so libc-2.5.so mbrtowc 72 0.0585 vmlinux vmlinux apic_timer_interrupt 67 0.0544 vmlinux vmlinux __delay 66 0.0536 vmlinux vmlinux page_fault 65 0.0528 vmlinux vmlinux unmap_vmas 62 0.0503 vmlinux vmlinux rt_spin_lock_slowunlock 55 0.0447 ext3 ext3 (no symbols) 55 0.0447 vmlinux vmlinux __spin_lock_irqsave 53 0.0430 vmlinux vmlinux rt_read_lock 50 0.0406 vmlinux vmlinux int_with_check 44 0.0357 vmlinux vmlinux rt_read_unlock 41 0.0333 libc-2.5.so libc-2.5.so _int_malloc 40 0.0325 vmlinux vmlinux enter_idle 36 0.0292 vmlinux vmlinux find_get_page 33 0.0268 vmlinux vmlinux do_page_fault 32 0.0260 libc-2.5.so libc-2.5.so _dl_addr 29 0.0235 vmlinux vmlinux __d_lookup 28 0.0227 vmlinux vmlinux copy_page_range 26 0.0211 libc-2.5.so libc-2.5.so _int_free 24 0.0195 vmlinux vmlinux __spin_unlock_irqrestore 24 0.0195 vmlinux vmlinux iret_label 24 0.0195 vmlinux vmlinux memcpy 24 0.0195 vmlinux vmlinux vm_normal_page 23 0.0187 vmlinux vmlinux kmem_cache_alloc 23 0.0187 vmlinux vmlinux rb_erase 23 0.0187 vmlinux vmlinux retint_restore_args 21 0.0171 vmlinux vmlinux rb_first 19 0.0154 vmlinux vmlinux __link_path_walk 18 0.0146 libc-2.5.so libc-2.5.so strlen 18 0.0146 vmlinux vmlinux do_wp_page 17 0.0138 vmlinux vmlinux find_vma 16 0.0130 libpthread-2.5.so libpthread-2.5.so pthread_cond_timedwait@@GLIBC_2.3.2 16 0.0130 vmlinux vmlinux flush_tlb_page 15 0.0122 vmlinux vmlinux rb_insert_color 15 0.0122 vmlinux vmlinux rt_mutex_lock 14 0.0114 libc-2.5.so libc-2.5.so _dl_mcount_wrapper_check 14 0.0114 netperf netperf .plt 13 0.0106 vmlinux vmlinux cache_alloc_refill 13 0.0106 vmlinux vmlinux get_page_from_freelist 12 0.0097 libc-2.5.so libc-2.5.so malloc 12 0.0097 vmlinux vmlinux copy_process 12 0.0097 vmlinux vmlinux hrtimer_run_queues 12 0.0097 vmlinux vmlinux release_pages 11 0.0089 ld-2.5.so ld-2.5.so _dl_cache_libcmp 11 0.0089 libc-2.5.so libc-2.5.so free 11 0.0089 vmlinux vmlinux memset 10 0.0081 libc-2.5.so libc-2.5.so strcpy 10 0.0081 libcrypto.so.0.9.8b libcrypto.so.0.9.8b (no symbols) 10 0.0081 libglib-2.0.so.0.1200.3 libglib-2.0.so.0.1200.3 (no symbols) 10 0.0081 vmlinux vmlinux __find_get_block 9 0.0073 ehci_hcd ehci_hcd (no symbols) 9 0.0073 vmlinux vmlinux do_lookup 9 0.0073 vmlinux vmlinux error_exit 9 0.0073 vmlinux vmlinux lock_timer_base 9 0.0073 vmlinux vmlinux rb_next 8 0.0065 gawk gawk (no symbols) 8 0.0065 libc-2.5.so libc-2.5.so sigprocmask 8 0.0065 libpython2.4.so.1.0 libpython2.4.so.1.0 (no symbols) 8 0.0065 vmlinux vmlinux __strncpy_from_user 8 0.0065 vmlinux vmlinux __strnlen_user 8 0.0065 vmlinux vmlinux do_mmap_pgoff 8 0.0065 vmlinux vmlinux dput 7 0.0057 libc-2.5.so libc-2.5.so strchr 7 0.0057 libc-2.5.so libc-2.5.so strncpy 7 0.0057 sshd sshd (no symbols) 7 0.0057 vmlinux vmlinux call_softirq 7 0.0057 vmlinux vmlinux filemap_nopage 7 0.0057 vmlinux vmlinux rt_mutex_trylock 6 0.0049 ld-2.5.so ld-2.5.so _dl_map_object_from_fd 6 0.0049 vmlinux vmlinux IRQ0xb9_interrupt 6 0.0049 vmlinux vmlinux find_vma_prepare 6 0.0049 vmlinux vmlinux free_hot_cold_page 6 0.0049 vmlinux vmlinux free_pgtables 6 0.0049 vmlinux vmlinux lru_cache_add_active 6 0.0049 vmlinux vmlinux number 6 0.0049 vmlinux vmlinux page_remove_rmap 6 0.0049 vmlinux vmlinux retint_careful 6 0.0049 vmlinux vmlinux rt_mutex_unlock 6 0.0049 vmlinux vmlinux set_normalized_timespec 5 0.0041 grep grep (no symbols) 5 0.0041 ld-2.5.so ld-2.5.so dl_main 5 0.0041 libc-2.5.so libc-2.5.so memcpy 5 0.0041 libc-2.5.so libc-2.5.so strcmp 5 0.0041 libpthread-2.5.so libpthread-2.5.so __lll_mutex_unlock_wake 5 0.0041 scsi_mod scsi_mod (no symbols) 5 0.0041 vmlinux vmlinux __pagevec_lru_add_active 5 0.0041 vmlinux vmlinux anon_vma_prepare 5 0.0041 vmlinux vmlinux anon_vma_unlink 5 0.0041 vmlinux vmlinux do_path_lookup 5 0.0041 vmlinux vmlinux free_pages_and_swap_cache 5 0.0041 vmlinux vmlinux page_add_file_rmap 4 0.0032 forcedeth.ko forcedeth nv_get_hw_stats 4 0.0032 ld-2.5.so ld-2.5.so _dl_load_cache_lookup 4 0.0032 ld-2.5.so ld-2.5.so _dl_resolve_conflicts 4 0.0032 ld-2.5.so ld-2.5.so memset 4 0.0032 libc-2.5.so libc-2.5.so vfprintf 4 0.0032 libdbus-1.so.3.2.0 libdbus-1.so.3.2.0 (no symbols) 4 0.0032 libpthread-2.5.so libpthread-2.5.so __pthread_mutex_unlock_usercnt 4 0.0032 vmlinux vmlinux IRQ0x81_interrupt 4 0.0032 vmlinux vmlinux __wake_up_bit 4 0.0032 vmlinux vmlinux cpuset_update_task_memory_state 4 0.0032 vmlinux vmlinux dup_fd 4 0.0032 vmlinux vmlinux file_kill 4 0.0032 vmlinux vmlinux generic_permission 4 0.0032 vmlinux vmlinux hash_futex 4 0.0032 vmlinux vmlinux mod_timer 4 0.0032 vmlinux vmlinux put_page 4 0.0032 vmlinux vmlinux run_local_timers 4 0.0032 vmlinux vmlinux unlock_page 4 0.0032 vmlinux vmlinux vma_adjust 4 0.0032 vmlinux vmlinux wake_up_bit 3 0.0024 automount automount (no symbols) 3 0.0024 ld-2.5.so ld-2.5.so _dl_fini 3 0.0024 ld-2.5.so ld-2.5.so _dl_map_object_deps 3 0.0024 ld-2.5.so ld-2.5.so strcmp 3 0.0024 libc-2.5.so libc-2.5.so __ctype_b_loc 3 0.0024 libc-2.5.so libc-2.5.so fork 3 0.0024 libc-2.5.so libc-2.5.so setlocale 3 0.0024 libusb-0.1.so.4.4.4 libusb-0.1.so.4.4.4 (no symbols) 3 0.0024 vmlinux vmlinux __clear_user 3 0.0024 vmlinux vmlinux __find_get_block_slow 3 0.0024 vmlinux vmlinux __getblk 3 0.0024 vmlinux vmlinux __pte_alloc 3 0.0024 vmlinux vmlinux __remove_shared_vm_struct 3 0.0024 vmlinux vmlinux __set_page_dirty_nobuffers 3 0.0024 vmlinux vmlinux add_to_page_cache 3 0.0024 vmlinux vmlinux alloc_page_vma 3 0.0024 vmlinux vmlinux copy_to_user 3 0.0024 vmlinux vmlinux current_fs_time 3 0.0024 vmlinux vmlinux d_alloc 3 0.0024 vmlinux vmlinux error_sti 3 0.0024 vmlinux vmlinux flush_old_exec 3 0.0024 vmlinux vmlinux get_unmapped_area 3 0.0024 vmlinux vmlinux get_unused_fd 3 0.0024 vmlinux vmlinux getnstimeofday 3 0.0024 vmlinux vmlinux ip_route_input 3 0.0024 vmlinux vmlinux lru_add_drain 3 0.0024 vmlinux vmlinux mark_page_accessed 3 0.0024 vmlinux vmlinux mmput 3 0.0024 vmlinux vmlinux open_namei 3 0.0024 vmlinux vmlinux prio_tree_insert 3 0.0024 vmlinux vmlinux remove_wait_queue 3 0.0024 vmlinux vmlinux tty_poll 3 0.0024 vmlinux vmlinux vma_link 3 0.0024 vmlinux vmlinux vsnprintf 2 0.0016 cat cat (no symbols) 2 0.0016 expr expr (no symbols) 2 0.0016 forcedeth.ko forcedeth reg_delay 2 0.0016 ld-2.5.so ld-2.5.so _dl_check_map_versions 2 0.0016 ld-2.5.so ld-2.5.so _dl_new_object 2 0.0016 ld-2.5.so ld-2.5.so _dl_sort_fini 2 0.0016 ld-2.5.so ld-2.5.so _dl_start 2 0.0016 ld-2.5.so ld-2.5.so _dl_sysdep_start 2 0.0016 ld-2.5.so ld-2.5.so open_verify 2 0.0016 libc-2.5.so libc-2.5.so _IO_doallocbuf 2 0.0016 libc-2.5.so libc-2.5.so _IO_file_fopen@@GLIBC_2.2.5 2 0.0016 libc-2.5.so libc-2.5.so _IO_list_unlock 2 0.0016 libc-2.5.so libc-2.5.so _IO_un_link 2 0.0016 libc-2.5.so libc-2.5.so __close_nocancel 2 0.0016 libc-2.5.so libc-2.5.so __ctype_get_mb_cur_max 2 0.0016 libc-2.5.so libc-2.5.so __init_misc 2 0.0016 libc-2.5.so libc-2.5.so _nl_intern_locale_data 2 0.0016 libc-2.5.so libc-2.5.so _nl_load_locale_from_archive 2 0.0016 libc-2.5.so libc-2.5.so _nl_postload_ctype 2 0.0016 libc-2.5.so libc-2.5.so close 2 0.0016 libc-2.5.so libc-2.5.so fclose@@GLIBC_2.2.5 2 0.0016 libc-2.5.so libc-2.5.so getenv 2 0.0016 libc-2.5.so libc-2.5.so malloc_consolidate 2 0.0016 libc-2.5.so libc-2.5.so memchr 2 0.0016 libc-2.5.so libc-2.5.so mempcpy 2 0.0016 libc-2.5.so libc-2.5.so memset 2 0.0016 libc-2.5.so libc-2.5.so sigaction 2 0.0016 libc-2.5.so libc-2.5.so strcoll_l 2 0.0016 libckyapplet.so.1.0.0 libckyapplet.so.1.0.0 (no symbols) 2 0.0016 libpthread-2.5.so libpthread-2.5.so pthread_mutex_lock 2 0.0016 usb_storage usb_storage (no symbols) 2 0.0016 vmlinux vmlinux __do_softirq 2 0.0016 vmlinux vmlinux __fput 2 0.0016 vmlinux vmlinux __mark_inode_dirty 2 0.0016 vmlinux vmlinux __pagevec_free 2 0.0016 vmlinux vmlinux alloc_pages_current 2 0.0016 vmlinux vmlinux bit_waitqueue 2 0.0016 vmlinux vmlinux blk_recount_segments 2 0.0016 vmlinux vmlinux copy_semundo 2 0.0016 vmlinux vmlinux dnotify_parent 2 0.0016 vmlinux vmlinux do_filp_open 2 0.0016 vmlinux vmlinux dummy_file_permission 2 0.0016 vmlinux vmlinux filp_close 2 0.0016 vmlinux vmlinux generic_file_mmap 2 0.0016 vmlinux vmlinux inotify_inode_queue_event 2 0.0016 vmlinux vmlinux ip_rcv 2 0.0016 vmlinux vmlinux kref_put 2 0.0016 vmlinux vmlinux load_elf_binary 2 0.0016 vmlinux vmlinux may_open 2 0.0016 vmlinux vmlinux mempool_alloc 2 0.0016 vmlinux vmlinux mntput_no_expire 2 0.0016 vmlinux vmlinux page_cache_readahead 2 0.0016 vmlinux vmlinux path_release 2 0.0016 vmlinux vmlinux percpu_counter_mod 2 0.0016 vmlinux vmlinux permission 2 0.0016 vmlinux vmlinux proc_lookup 2 0.0016 vmlinux vmlinux retint_check 2 0.0016 vmlinux vmlinux rw_verify_area 2 0.0016 vmlinux vmlinux skb_clone 2 0.0016 vmlinux vmlinux strchr 2 0.0016 vmlinux vmlinux sys_mmap 2 0.0016 vmlinux vmlinux unlock_buffer 2 0.0016 vmlinux vmlinux unmap_region 2 0.0016 vmlinux vmlinux vfs_write 2 0.0016 vmlinux vmlinux vm_acct_memory 2 0.0016 vmlinux vmlinux vma_merge 2 0.0016 vmlinux vmlinux vma_prio_tree_remove 2 0.0016 vmlinux vmlinux zonelist_policy 1 8.1e-04 dirname dirname (no symbols) 1 8.1e-04 forcedeth.ko forcedeth nv_alloc_rx_optimized 1 8.1e-04 forcedeth.ko forcedeth nv_update_linkspeed 1 8.1e-04 id id (no symbols) 1 8.1e-04 ld-2.5.so ld-2.5.so .text 1 8.1e-04 ld-2.5.so ld-2.5.so __GI___fxstat 1 > > thanks, > Nivedita > >> The mother board is a Supermicro H8DME-2 with one dual core Opteron >> installed. The networking is provided by the on board nVidia MCP55Pro >> chip. >> >> The RT test is done using netperf 2.4.3 with the server on an IBM >> LS20 blade running RHEL4U2 and the Supermicro running netperf under >> RHEL5 with 2.6.21-rc5-rt5. >> The Non-RT test was done on the exact same setup except >> 2.6.21-rc5-rt5 was loaded on the SuperMicro board. >> >> Cyclesoak was used to measure CPU utilization in all cases. >> >> >> >> Here are the RT results >> ########################################################3 >> ## 2.6.21-rc5-rt5 >> ####################################################### >> $ !netper >> netperf -l 100 -H 192.168.70.11 -t UDP_STREAM -- -m 1025 >> UDP UNIDIRECTIONAL SEND TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to >> 192.168.70.11 (192.168.70.11) port 0 AF_INET >> Socket Message Elapsed Messages >> Size Size Time Okay Errors Throughput >> bytes bytes secs # # 10^6bits/sec >> >> 126976 1025 100.00 8676376 0 711.46 >> 135168 100.00 8676376 711.46 >> >> ########## cyclesoak during test >> $ ./cyclesoak >> using 2 CPUs >> System load: -0.1% >> System load: 40.5% >> System load: 51.6% >> System load: 51.5% >> System load: 50.9% >> System load: 50.7% >> System load: 50.8% >> System load: 50.7% >> System load: 50.6% >> >> ######## top during test >> top - 13:26:48 up 8 min, 4 users, load average: 1.74, 0.46, 0.15 >> Tasks: 149 total, 4 running, 145 sleeping, 0 stopped, 0 zombie >> Cpu(s): 0.7%us, 16.8%sy, 50.6%ni, 0.0%id, 0.0%wa, 25.6%hi, >> 6.3%si, 0.0%st >> Mem: 2035444k total, 465888k used, 1569556k free, 28840k buffers >> Swap: 3068372k total, 0k used, 3068372k free, 318668k cached >> >> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND >> 3865 eadi 39 19 6804 1164 108 R 100 0.1 0:38.25 cyclesoak >> 2715 root -51 -5 0 0 0 S 51 0.0 0:09.52 IRQ-8406 >> 3867 eadi 25 0 6440 632 480 R 34 0.0 0:06.03 >> netperf 19 root -51 0 0 0 0 S 13 0.0 >> 0:02.33 softirq-net-tx/ >> 3866 eadi 39 19 6804 1164 108 R 1 0.1 0:20.47 cyclesoak >> 3167 root 25 0 29888 1180 888 S 0 0.1 0:00.93 automount >> 3861 eadi 15 0 12712 1076 788 R 0 0.1 0:00.19 top >> 1 root 18 0 10308 668 552 S 0 0.0 0:00.67 >> init 2 root RT 0 0 0 0 S 0 0.0 0:00.00 >> migration/0 3 root RT 0 0 0 0 S 0 0.0 >> 0:00.00 posix_cpu_timer >> 4 root -51 0 0 0 0 S 0 0.0 0:00.00 >> softirq-high/0 >> 5 root -51 0 0 0 0 S 0 0.0 0:00.00 >> softirq-timer/0 >> 6 root -51 0 0 0 0 S 0 0.0 0:00.00 >> softirq-net-tx/ >> 7 root -51 0 0 0 0 S 0 0.0 0:00.00 >> softirq-net-rx/ >> 8 root -51 0 0 0 0 S 0 0.0 0:00.00 >> softirq-block/0 >> >> ######################## >> The baseline results: >> RHEL5 with 2.6.21-rc5 kernel >> ############################## >> >> $ netperf -l 100 -H 192.168.70.11 -t UDP_STREAM -- -m 1025 >> >> UDP UNIDIRECTIONAL SEND TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to >> 192.168.70.11 (192.168.70.11) port 0 AF_INET >> Socket Message Elapsed Messages >> Size Size Time Okay Errors Throughput >> bytes bytes secs # # 10^6bits/sec >> >> 126976 1025 100.00 11405485 0 935.24 >> 135168 100.00 11405485 935.24 >> >> ####################################### >> $ ./cyclesoak >> using 2 CPUs >> System load: 7.6% >> System load: 29.6% >> System load: 29.6% >> System load: 28.9% >> System load: 24.9% >> System load: 25.0% >> System load: 24.8% >> System load: 24.9% >> >> ####################################### >> top:top - 13:52:22 up 10 min, 6 users, load average: 1.46, 0.43, 0.17 >> Tasks: 118 total, 4 running, 114 sleeping, 0 stopped, 0 zombie >> Cpu(s): 0.5%us, 9.8%sy, 75.7%ni, 0.0%id, 0.0%wa, 5.8%hi, >> 8.1%si, 0.0%st >> Mem: 2057200k total, 459128k used, 1598072k free, 29020k buffers >> Swap: 3068372k total, 0k used, 3068372k free, 318968k cached >> >> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND >> 3882 eadi 39 19 6804 1164 108 R 100 0.1 0:52.11 cyclesoak >> 3881 eadi 39 19 6804 1164 108 R 65 0.1 0:38.47 cyclesoak >> 3883 eadi 15 0 6436 632 480 R 35 0.0 0:18.26 netperf >> 3879 eadi 15 0 12580 1052 788 R 0 0.1 0:00.15 top >> 1 root 18 0 10308 664 552 S 0 0.0 0:00.48 >> init 2 root RT 0 0 0 0 S 0 0.0 0:00.00 >> migration/0 >> 3 root 34 19 0 0 0 S 0 0.0 0:00.01 ksoftirqd/0 >> 4 root RT 0 0 0 0 S 0 0.0 0:00.00 watchdog/0 >> 5 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/1 >> 6 root 34 19 0 0 0 S 0 0.0 0:00.00 ksoftirqd/1 >> >> Any thoughts on how to fix this? >> >> Thanks, >> -Dave >> >> >> >> >> >> >> >> >> >> >> >> - >> To unsubscribe from this list: send the line "unsubscribe >> linux-rt-users" in >> the body of a message to majordomo@...r.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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