We run the sysbench 0.5 version on our SUT,found the FileIO test case report data about speed is Mb/Gbps,We consider it should be MB/GBps.Is it right?

[jackhsu]

[root@localhost 600GB]# sysbench --num-threads=16 --test=fileio --file-test-mode=seqwr run
sysbench 0.5: multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 16
Random number generator seed is 0 and will be ignored

Extra file open flags: 0
128 files, 16Mb each
2Gb total file size
Block size 16Kb
Periodic FSYNC enabled, calling fsync() each 100 requests.
Calling fsync() at the end of test, Enabled.
Using synchronous I/O mode
Doing sequential write (creation) test
Threads started!

Operations performed: 0 reads, 10000 writes, 12800 Other = 22800 Total
Read 0b Written 156.25Mb Total transferred 156.25Mb (14.018Mb/sec)
  897.12 Requests/sec executed
======================================================================
above are our run-status
and one question why seqwrite has other operation 12800 but seqread doesn't?

[Alexey Kopytov (akopytov)]

Other operations are fsync() calls, which are only executed for write workloads. In your case, you have to fsync() 128 files after every 100 requests out of 10000 total requests.

[jackhsu (jackfox3682)]

Exercise me,I also want to ask the result is show xxxx.xx Mbps,why it's "bit" not "Byte"

[Alexey Kopytov (akopytov)]

Sorry, I missed the first question. It's actually bytes, megabytes, etc. everywhere. It's just that sysbench is using wrong and inconsistent unit names. Fixing it is on my TODO.

[jackhsu (jackfox3682)]

Thanks for reply

Alexey Kopytov <email address hidden> 於 2016年1月1日 星期五寫道：

> Sorry, I missed the first question. It's actually bytes, megabytes, etc.
> everywhere. It's just that sysbench is using wrong and inconsistent unit
> names. Fixing it is on my TODO.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1530016
>
> Title:
> We run the sysbench 0.5 version on our SUT,found the FileIO test case
> report data about speed is Mb/Gbps,We consider it should be MB/GBps.Is
> it right?
>
> Status in sysbench:
> Invalid
>
> Bug description:
> [root@localhost 600GB]# sysbench --num-threads=16 --test=fileio
> --file-test-mode=seqwr run
> sysbench 0.5: multi-threaded system evaluation benchmark
>
> Running the test with following options:
> Number of threads: 16
> Random number generator seed is 0 and will be ignored
>
>
> Extra file open flags: 0
> 128 files, 16Mb each
> 2Gb total file size
> Block size 16Kb
> Periodic FSYNC enabled, calling fsync() each 100 requests.
> Calling fsync() at the end of test, Enabled.
> Using synchronous I/O mode
> Doing sequential write (creation) test
> Threads started!
>
> Operations performed: 0 reads, 10000 writes, 12800 Other = 22800 Total
> Read 0b Written 156.25Mb Total transferred 156.25Mb (14.018Mb/sec)
> 897.12 Requests/sec executed
> ======================================================================
> above are our run-status
> and one question why seqwrite has other operation 12800 but seqread
> doesn't?
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/sysbench/+bug/1530016/+subscriptions
>

[Alexey Kopytov (akopytov)]

Unit have been fixed in 1.0 by this patch: https://github.com/akopytov/sysbench/pull/32