perf_block_bio_queue.log

# To display the perf.data header info, please use --header/--header-only options.
#
# Samples: 24K of event 'block:block_bio_queue'
# Event count (approx.): 24361
#
# Children      Self  Command  Shared Object     Symbol                         
# ........  ........  .......  ................  ...............................
#
   100.00%     0.00%  fio      [unknown]         [.] 0000000000000000           
                |
                ---0

   100.00%     0.00%  fio      libc-2.17.so      [.] posix_fadvise64            
                |
                ---posix_fadvise64
                   0

   100.00%     0.00%  fio      [kernel.vmlinux]  [k] return_from_SYSCALL_64     
                |
                ---return_from_SYSCALL_64
                   posix_fadvise64
                   0

   100.00%     0.00%  fio      [kernel.vmlinux]  [k] do_syscall_64              
                |
                ---do_syscall_64
                   return_from_SYSCALL_64
                   posix_fadvise64
                   0

   100.00%     0.00%  fio      [kernel.vmlinux]  [k] sys_fadvise64              
                |
                ---sys_fadvise64
                   do_syscall_64
                   return_from_SYSCALL_64
                   posix_fadvise64
                   0

   100.00%     0.00%  fio      [kernel.vmlinux]  [k] __filemap_fdatawrite_range 
                |
                ---__filemap_fdatawrite_range
                   sys_fadvise64
                   do_syscall_64
                   return_from_SYSCALL_64
                   posix_fadvise64
                   0

   100.00%     0.00%  fio      [kernel.vmlinux]  [k] do_writepages              
                |
                ---do_writepages
                   __filemap_fdatawrite_range
                   sys_fadvise64
                   do_syscall_64
                   return_from_SYSCALL_64
                   posix_fadvise64
                   0

   100.00%     0.00%  fio      [ext4]            [k] ext4_writepages            
                |
                ---ext4_writepages
                   do_writepages
                   __filemap_fdatawrite_range
                   sys_fadvise64
                   do_syscall_64
                   return_from_SYSCALL_64
                   posix_fadvise64
                   0

   100.00%     0.00%  fio      [ext4]            [k] ext4_io_submit             
                |
                ---ext4_io_submit
                   |          
                   |--56.68%-- ext4_writepages
                   |          do_writepages
                   |          __filemap_fdatawrite_range
                   |          sys_fadvise64
                   |          do_syscall_64
                   |          return_from_SYSCALL_64
                   |          posix_fadvise64
                   |          0
                   |          
                    --43.32%-- ext4_bio_write_page
                              mpage_submit_page
                              mpage_process_page_bufs
                              mpage_prepare_extent_to_map
                              ext4_writepages
                              do_writepages
                              __filemap_fdatawrite_range
                              sys_fadvise64
                              do_syscall_64
                              return_from_SYSCALL_64
                              posix_fadvise64
                              0

   100.00%     0.00%  fio      [kernel.vmlinux]  [k] submit_bio                 
                |
                ---submit_bio
                   ext4_io_submit
                   |          
                   |--56.68%-- ext4_writepages
                   |          do_writepages
                   |          __filemap_fdatawrite_range
                   |          sys_fadvise64
                   |          do_syscall_64
                   |          return_from_SYSCALL_64
                   |          posix_fadvise64
                   |          0
                   |          
                    --43.32%-- ext4_bio_write_page
                              mpage_submit_page
                              mpage_process_page_bufs
                              mpage_prepare_extent_to_map
                              ext4_writepages
                              do_writepages
                              __filemap_fdatawrite_range
                              sys_fadvise64
                              do_syscall_64
                              return_from_SYSCALL_64
                              posix_fadvise64
                              0

   100.00%     0.00%  fio      [kernel.vmlinux]  [k] generic_make_request       
                |
                ---generic_make_request
                   |          
                   |--88.24%-- blk_queue_split
                   |          blk_queue_bio
                   |          generic_make_request
                   |          submit_bio
                   |          ext4_io_submit
                   |          |          
                   |          |--56.38%-- ext4_writepages
                   |          |          do_writepages
                   |          |          __filemap_fdatawrite_range
                   |          |          sys_fadvise64
                   |          |          do_syscall_64
                   |          |          return_from_SYSCALL_64
                   |          |          posix_fadvise64
                   |          |          0
                   |          |          
                   |           --43.62%-- ext4_bio_write_page
                   |                     mpage_submit_page
                   |                     mpage_process_page_bufs
                   |                     mpage_prepare_extent_to_map
                   |                     ext4_writepages
                   |                     do_writepages
                   |                     __filemap_fdatawrite_range
                   |                     sys_fadvise64
                   |                     do_syscall_64
                   |                     return_from_SYSCALL_64
                   |                     posix_fadvise64
                   |                     0
                   |          
                    --11.76%-- submit_bio
                              ext4_io_submit
                              |          
                              |--58.95%-- ext4_writepages
                              |          do_writepages
                              |          __filemap_fdatawrite_range
                              |          sys_fadvise64
                              |          do_syscall_64
                              |          return_from_SYSCALL_64
                              |          posix_fadvise64
                              |          0
                              |          
                               --41.05%-- ext4_bio_write_page
                                         mpage_submit_page
                                         mpage_process_page_bufs
                                         mpage_prepare_extent_to_map
                                         ext4_writepages
                                         do_writepages
                                         __filemap_fdatawrite_range
                                         sys_fadvise64
                                         do_syscall_64
                                         return_from_SYSCALL_64
                                         posix_fadvise64
                                         0

   100.00%   100.00%  fio      [kernel.vmlinux]  [k] generic_make_request_checks
                |
                ---generic_make_request_checks
                   generic_make_request
                   |          
                   |--88.24%-- blk_queue_split
                   |          blk_queue_bio
                   |          generic_make_request
                   |          submit_bio
                   |          ext4_io_submit
                   |          |          
                   |          |--56.38%-- ext4_writepages
                   |          |          do_writepages
                   |          |          __filemap_fdatawrite_range
                   |          |          sys_fadvise64
                   |          |          do_syscall_64
                   |          |          return_from_SYSCALL_64
                   |          |          posix_fadvise64
                   |          |          0
                   |          |          
                   |           --43.62%-- ext4_bio_write_page
                   |                     mpage_submit_page
                   |                     mpage_process_page_bufs
                   |                     mpage_prepare_extent_to_map
                   |                     ext4_writepages
                   |                     do_writepages
                   |                     __filemap_fdatawrite_range
                   |                     sys_fadvise64
                   |                     do_syscall_64
                   |                     return_from_SYSCALL_64
                   |                     posix_fadvise64
                   |                     0
                   |          
                    --11.76%-- submit_bio
                              ext4_io_submit
                              |          
                              |--58.95%-- ext4_writepages
                              |          do_writepages
                              |          __filemap_fdatawrite_range
                              |          sys_fadvise64
                              |          do_syscall_64
                              |          return_from_SYSCALL_64
                              |          posix_fadvise64
                              |          0
                              |          
                               --41.05%-- ext4_bio_write_page
                                         mpage_submit_page
                                         mpage_process_page_bufs
                                         mpage_prepare_extent_to_map
                                         ext4_writepages
                                         do_writepages
                                         __filemap_fdatawrite_range
                                         sys_fadvise64
                                         do_syscall_64
                                         return_from_SYSCALL_64
                                         posix_fadvise64
                                         0

    88.24%     0.00%  fio      [kernel.vmlinux]  [k] blk_queue_bio              
                |
                ---blk_queue_bio
                   generic_make_request
                   submit_bio
                   ext4_io_submit
                   |          
                   |--56.38%-- ext4_writepages
                   |          do_writepages
                   |          __filemap_fdatawrite_range
                   |          sys_fadvise64
                   |          do_syscall_64
                   |          return_from_SYSCALL_64
                   |          posix_fadvise64
                   |          0
                   |          
                    --43.62%-- ext4_bio_write_page
                              mpage_submit_page
                              mpage_process_page_bufs
                              mpage_prepare_extent_to_map
                              ext4_writepages
                              do_writepages
                              __filemap_fdatawrite_range
                              sys_fadvise64
                              do_syscall_64
                              return_from_SYSCALL_64
                              posix_fadvise64
                              0

    88.24%     0.00%  fio      [kernel.vmlinux]  [k] blk_queue_split            
                |
                ---blk_queue_split
                   blk_queue_bio
                   generic_make_request
                   submit_bio
                   ext4_io_submit
                   |          
                   |--56.38%-- ext4_writepages
                   |          do_writepages
                   |          __filemap_fdatawrite_range
                   |          sys_fadvise64
                   |          do_syscall_64
                   |          return_from_SYSCALL_64
                   |          posix_fadvise64
                   |          0
                   |          
                    --43.62%-- ext4_bio_write_page
                              mpage_submit_page
                              mpage_process_page_bufs
                              mpage_prepare_extent_to_map
                              ext4_writepages
                              do_writepages
                              __filemap_fdatawrite_range
                              sys_fadvise64
                              do_syscall_64
                              return_from_SYSCALL_64
                              posix_fadvise64
                              0

    43.32%     0.00%  fio      [ext4]            [k] mpage_prepare_extent_to_map
                |
                ---mpage_prepare_extent_to_map
                   ext4_writepages
                   do_writepages
                   __filemap_fdatawrite_range
                   sys_fadvise64
                   do_syscall_64
                   return_from_SYSCALL_64
                   posix_fadvise64
                   0

    43.32%     0.00%  fio      [ext4]            [k] mpage_process_page_bufs    
                |
                ---mpage_process_page_bufs
                   mpage_prepare_extent_to_map
                   ext4_writepages
                   do_writepages
                   __filemap_fdatawrite_range
                   sys_fadvise64
                   do_syscall_64
                   return_from_SYSCALL_64
                   posix_fadvise64
                   0

    43.32%     0.00%  fio      [ext4]            [k] mpage_submit_page          
                |
                ---mpage_submit_page
                   mpage_process_page_bufs
                   mpage_prepare_extent_to_map
                   ext4_writepages
                   do_writepages
                   __filemap_fdatawrite_range
                   sys_fadvise64
                   do_syscall_64
                   return_from_SYSCALL_64
                   posix_fadvise64
                   0

    43.32%     0.00%  fio      [ext4]            [k] ext4_bio_write_page        
                |
                ---ext4_bio_write_page
                   mpage_submit_page
                   mpage_process_page_bufs
                   mpage_prepare_extent_to_map
                   ext4_writepages
                   do_writepages
                   __filemap_fdatawrite_range
                   sys_fadvise64
                   do_syscall_64
                   return_from_SYSCALL_64
                   posix_fadvise64
                   0



#
# (For a higher level overview, try: perf report --sort comm,dso)
#