Nécessaire fait
Je pense que cela doit avoir un lien avec ce fameux kworker
http://ubuntuplace.info/questions/359/kworker-quest-ce-que-cest-et-pourquoi-est-ce-que-ca-grouille
Mais je pige pas tout ?
J'ai installé perf comme indiqué :
Voici un rapport qui a été généré
Samples: 16K of event 'cycles', Event count (approx.): 1139022799
Children Self Command Shared Object Symbol ◆
+ 67,76% 0,00% swapper [kernel.kallsyms] [k] secondary_startup_64 ▒
+ 67,75% 0,01% swapper [kernel.kallsyms] [k] cpu_startup_entry ▒
+ 67,55% 0,10% swapper [kernel.kallsyms] [k] do_idle ▒
+ 65,56% 0,03% swapper [kernel.kallsyms] [k] default_idle_call ▒
+ 65,52% 0,03% swapper [kernel.kallsyms] [k] arch_cpu_idle ▒
+ 65,48% 0,13% swapper [kernel.kallsyms] [k] amd_e400_idle ▒
+ 64,71% 0,04% swapper [kernel.kallsyms] [k] default_idle ▒
+ 64,55% 55,81% swapper [kernel.kallsyms] [k] native_safe_halt ▒
+ 55,28% 0,00% swapper [kernel.kallsyms] [k] start_secondary ▒
+ 12,48% 0,00% swapper [kernel.kallsyms] [k] x86_64_start_kernel ▒
+ 12,48% 0,00% swapper [kernel.kallsyms] [k] x86_64_start_reservations ▒
+ 12,48% 0,00% swapper [kernel.kallsyms] [k] start_kernel ▒
+ 12,48% 0,00% swapper [kernel.kallsyms] [k] rest_init ▒
+ 7,68% 0,02% swapper [kernel.kallsyms] [k] ret_from_intr ▒
+ 7,65% 0,01% swapper [kernel.kallsyms] [k] do_IRQ ▒
+ 6,91% 0,03% baloo_file_extr [kernel.kallsyms] [k] page_fault ▒
+ 6,86% 0,02% baloo_file_extr [kernel.kallsyms] [k] do_page_fault ▒
+ 6,85% 0,09% baloo_file_extr [kernel.kallsyms] [k] __do_page_fault ▒
+ 6,83% 0,03% baloo_file_extr liblmdb.so.0.0.0 [.] 0x0000000000005d6d ▒
+ 6,69% 0,02% baloo_file_extr [kernel.kallsyms] [k] handle_mm_fault ▒
+ 6,67% 0,09% baloo_file_extr [kernel.kallsyms] [k] __handle_mm_fault ▒
+ 6,57% 0,17% baloo_file_extr [kernel.kallsyms] [k] handle_pte_fault ▒
+ 6,09% 0,02% swapper [kernel.kallsyms] [k] irq_exit ▒
+ 5,94% 0,05% swapper [kernel.kallsyms] [k] __softirqentry_text_start ▒
+ 5,79% 0,01% baloo_file_extr [kernel.kallsyms] [k] __do_fault ▒
+ 5,77% 0,03% baloo_file_extr [kernel.kallsyms] [k] ext4_filemap_fault ▒
+ 5,76% 0,06% baloo_file_extr [kernel.kallsyms] [k] filemap_fault ▒
+ 5,39% 0,03% swapper [kernel.kallsyms] [k] blk_done_softirq ▒
+ 5,35% 0,03% swapper [kernel.kallsyms] [k] scsi_softirq_done ▒
+ 5,29% 0,00% swapper [kernel.kallsyms] [k] scsi_finish_command ▒
+ 5,24% 0,04% swapper [kernel.kallsyms] [k] scsi_io_completion ▒
+ 5,20% 0,04% swapper [kernel.kallsyms] [k] scsi_end_request ▒
+ 5,13% 0,06% baloo_file_extr [kernel.kallsyms] [k] __do_page_cache_readahead ▒
+ 3,29% 0,01% baloo_file_extr [kernel.kallsyms] [k] ext4_readpages ▒
+ 3,25% 0,37% baloo_file_extr [kernel.kallsyms] [k] ext4_mpage_readpages ▒
3,06% 3,06% baloo_file_extr liblmdb.so.0.0.0 [.] mdb_mid2l_insert ▒
+ 2,30% 0,00% kswapd0 [kernel.kallsyms] [k] ret_from_fork ▒
+ 2,30% 0,00% kswapd0 [kernel.kallsyms] [k] kthread ▒
+ 2,30% 0,00% kswapd0 [kernel.kallsyms] [k] kswapd ▒
+ 2,27% 0,00% kswapd0 [kernel.kallsyms] [k] shrink_node ▒
+ 2,27% 0,00% kswapd0 [kernel.kallsyms] [k] shrink_slab.part.51 ▒
+ 2,27% 0,00% kswapd0 [kernel.kallsyms] [k] super_cache_scan ▒
+ 2,04% 1,97% baloo_file_extr liblmdb.so.0.0.0 [.] _init ▒
+ 2,00% 0,00% kswapd0 [kernel.kallsyms] [k] prune_icache_sb ▒
+ 1,93% 0,00% kswapd0 [kernel.kallsyms] [k] list_lru_walk_one ▒
+ 1,86% 0,07% kswapd0 [kernel.kallsyms] [k] __list_lru_walk_one.isra.5 ▒
+ 1,83% 0,12% swapper [kernel.kallsyms] [k] blk_finish_request ▒
+ 1,79% 0,00% kswapd0 [kernel.kallsyms] [k] inode_lru_isolate ▒
+ 1,79% 0,00% kswapd0 [kernel.kallsyms] [k] invalidate_mapping_pages ▒
+ 1,78% 0,17% swapper [kernel.kallsyms] [k] try_to_wake_up ▒
+ 1,75% 0,03% swapper [kernel.kallsyms] [k] blk_update_request ▒
+ 1,64% 0,00% swapper [kernel.kallsyms] [k] bio_endio ▒
+ 1,55% 0,06% swapper [kernel.kallsyms] [k] mpage_end_io ▒
+ 1,54% 0,00% swapper [kernel.kallsyms] [k] handle_irq ▒
+ 1,49% 0,05% swapper [kernel.kallsyms] [k] __blk_put_request ▒
+ 1,47% 0,14% swapper [kernel.kallsyms] [k] unlock_page ▒
+ 1,46% 0,07% baloo_file_extr [kernel.kallsyms] [k] add_to_page_cache_lru ▒
+ 1,43% 0,04% swapper [kernel.kallsyms] [k] handle_irq_event_percpu ▒
+ 1,43% 0,01% swapper [kernel.kallsyms] [k] handle_edge_irq ▒
+ 1,42% 0,00% swapper [kernel.kallsyms] [k] handle_irq_event
De l'hébreu pour moi
Excusez je dois m'absenter