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From: Erwan Velu <e.velu@criteo.com>
To: Hans-Peter Lehmann <hans-peter.lehmann@kit.edu>,
	"fio@vger.kernel.org" <fio@vger.kernel.org>
Subject: Re: Question: t/io_uring performance
Date: Wed, 1 Sep 2021 15:17:03 +0200	[thread overview]
Message-ID: <74c59a8b-9475-6554-7d93-f9c5f26cc652@criteo.com> (raw)
In-Reply-To: <1b1c961d-ddba-18de-e0ff-fd8cf60f5da8@kit.edu>

Le 01/09/2021 à 12:36, Hans-Peter Lehmann a écrit :
> I couldn't find details about Jens' processor frequency but I would be 
> surprised if he had ~3 times the frequency of ours (2.0 GHz base, 3.2 
> GHz boost). 


Can you check how the processor performance goes during the run ?

This would help ensuring the processors clocks perfectly during your run.

To ease this part, you can use the exec module I committed recently in 
fio : https://github.com/axboe/fio/blob/master/examples/exec.fio

There is an example on how dumping the cpuperf in // of a particular 
workload.

If you don't want to use this, you can just run the turbostat cmdline 
I'm sharing in this example.


Cheers,

Erwan,



  reply	other threads:[~2021-09-01 13:18 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-25 15:57 Question: t/io_uring performance Hans-Peter Lehmann
2021-08-26  7:27 ` Erwan Velu
2021-08-26 15:57   ` Hans-Peter Lehmann
2021-08-27  7:20     ` Erwan Velu
2021-09-01 10:36       ` Hans-Peter Lehmann
2021-09-01 13:17         ` Erwan Velu [this message]
2021-09-01 14:02           ` Hans-Peter Lehmann
2021-09-01 14:05             ` Erwan Velu
2021-09-01 14:17               ` Erwan Velu
2021-09-06 14:26                 ` Hans-Peter Lehmann
2021-09-06 14:41                   ` Erwan Velu
2021-09-08 11:53                   ` Sitsofe Wheeler
2021-09-08 12:22                     ` Jens Axboe
2021-09-08 12:41                       ` Jens Axboe
2021-09-08 16:12                         ` Hans-Peter Lehmann
2021-09-08 16:20                           ` Jens Axboe
2021-09-08 21:24                             ` Hans-Peter Lehmann
2021-09-08 21:34                               ` Jens Axboe
2021-09-10 11:25                                 ` Hans-Peter Lehmann
2021-09-10 11:45                                   ` Erwan Velu
2021-09-08 12:33                 ` Jens Axboe
2021-09-08 17:11                   ` Erwan Velu
2021-09-08 22:37                     ` Erwan Velu
2021-09-16 21:18                       ` Erwan Velu
2021-09-21  7:05                         ` Erwan Velu
2021-09-22 14:45                           ` Hans-Peter Lehmann

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