* Question about the 'bw' field in the fio output
@ 2023-07-13 15:43 richard clark
2023-07-13 16:44 ` Vincent Fu
0 siblings, 1 reply; 3+ messages in thread
From: richard clark @ 2023-07-13 15:43 UTC (permalink / raw)
To: fio; +Cc: linux-kernel
Hi,
I found that sometimes the fio command will have an additional 'bw'
field as below:
...
clat percentiles (usec):
| 1.00th=[. 51]...
bw ( KiB/s): min=45689, max=49753, per=100.00%, avg=49658.56,
stdev=89.23, samples =5
iops : min=.....
...
Please there is a line beginning with 'bw ( KiB/s)...', but sometimes
the 'bw' line doesn't show, does anybody know the reasons?
Thanks.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Question about the 'bw' field in the fio output
2023-07-13 15:43 Question about the 'bw' field in the fio output richard clark
@ 2023-07-13 16:44 ` Vincent Fu
2023-07-14 3:10 ` richard clark
0 siblings, 1 reply; 3+ messages in thread
From: Vincent Fu @ 2023-07-13 16:44 UTC (permalink / raw)
To: richard clark, fio; +Cc: linux-kernel
On 7/13/23 11:43, richard clark wrote:
> Hi,
>
> I found that sometimes the fio command will have an additional 'bw'
> field as below:
> ...
> clat percentiles (usec):
> | 1.00th=[. 51]...
> bw ( KiB/s): min=45689, max=49753, per=100.00%, avg=49658.56,
> stdev=89.23, samples =5
> iops : min=.....
> ...
>
> Please there is a line beginning with 'bw ( KiB/s)...', but sometimes
> the 'bw' line doesn't show, does anybody know the reasons?
>
> Thanks.
See:
https://lore.kernel.org/fio/7b2f76ca-42bb-dc73-dd07-2cc79729ecb0@gmail.com/T/#t
https://github.com/vincentkfu/fio-blog/wiki/Periodic-performance-measurements
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Question about the 'bw' field in the fio output
2023-07-13 16:44 ` Vincent Fu
@ 2023-07-14 3:10 ` richard clark
0 siblings, 0 replies; 3+ messages in thread
From: richard clark @ 2023-07-14 3:10 UTC (permalink / raw)
To: Vincent Fu; +Cc: fio, linux-kernel
The information is very very helpful, thank you Vincent !!
On Fri, Jul 14, 2023 at 12:44 AM Vincent Fu <vincentfu@gmail.com> wrote:
>
> On 7/13/23 11:43, richard clark wrote:
> > Hi,
> >
> > I found that sometimes the fio command will have an additional 'bw'
> > field as below:
> > ...
> > clat percentiles (usec):
> > | 1.00th=[. 51]...
> > bw ( KiB/s): min=45689, max=49753, per=100.00%, avg=49658.56,
> > stdev=89.23, samples =5
> > iops : min=.....
> > ...
> >
> > Please there is a line beginning with 'bw ( KiB/s)...', but sometimes
> > the 'bw' line doesn't show, does anybody know the reasons?
> >
> > Thanks.
>
> See:
>
> https://lore.kernel.org/fio/7b2f76ca-42bb-dc73-dd07-2cc79729ecb0@gmail.com/T/#t
>
> https://github.com/vincentkfu/fio-blog/wiki/Periodic-performance-measurements
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2023-07-14 3:11 UTC | newest]
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2023-07-13 15:43 Question about the 'bw' field in the fio output richard clark
2023-07-13 16:44 ` Vincent Fu
2023-07-14 3:10 ` richard clark
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