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lktm/drivers/block/sampleblk/labs/lab2/perf_block_bio_queue.log

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# 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)
#