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how to fio verify reliably in linux

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-2

I am using fio over disks exposed through iscsi. I am giving these params in fio

fio --name=randwrite --ioengine=libaio --iodepth=64 --rw=randrw --rwmixread=50 --bs=4k-2M --direct=1 -filename=data --numjobs=1 --runtime 36000 --verify=md5 --verify_async=4 --verify_backlog=100000 --verify_dump=1 --verify_fatal=1 --time_based --group_reporting

With the above parameters can fio send overlap concurrent writes of size more than page size.
If yes, then how does fio verify the checksum because atomicity of io is not guaranteed across page size.

linux disk io storage utilities

share|improve this question

asked 52 mins ago

rishabh mittalrishabh mittal

1

New contributor

rishabh mittal is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment | 

-2

I am using fio over disks exposed through iscsi. I am giving these params in fio

fio --name=randwrite --ioengine=libaio --iodepth=64 --rw=randrw --rwmixread=50 --bs=4k-2M --direct=1 -filename=data --numjobs=1 --runtime 36000 --verify=md5 --verify_async=4 --verify_backlog=100000 --verify_dump=1 --verify_fatal=1 --time_based --group_reporting

With the above parameters can fio send overlap concurrent writes of size more than page size.
If yes, then how does fio verify the checksum because atomicity of io is not guaranteed across page size.

linux disk io storage utilities

share|improve this question

asked 52 mins ago

rishabh mittalrishabh mittal

1

New contributor

rishabh mittal is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

I am using fio over disks exposed through iscsi. I am giving these params in fio

fio --name=randwrite --ioengine=libaio --iodepth=64 --rw=randrw --rwmixread=50 --bs=4k-2M --direct=1 -filename=data --numjobs=1 --runtime 36000 --verify=md5 --verify_async=4 --verify_backlog=100000 --verify_dump=1 --verify_fatal=1 --time_based --group_reporting

With the above parameters can fio send overlap concurrent writes of size more than page size.
If yes, then how does fio verify the checksum because atomicity of io is not guaranteed across page size.

linux disk io storage utilities

share|improve this question

asked 52 mins ago

rishabh mittalrishabh mittal

1

New contributor

rishabh mittal is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

asked 52 mins ago

rishabh mittalrishabh mittal

1

New contributor

rishabh mittal is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

asked 52 mins ago

rishabh mittalrishabh mittal

1

New contributor

rishabh mittal is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 52 mins ago

rishabh mittalrishabh mittal

1

New contributor

rishabh mittal is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 52 mins ago

rishabh mittalrishabh mittal

1