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Re: nvme SSD and poor performance

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On 20.08.2021 13:50, Pierre Willaime wrote:
>
> Program are slow to start. Sometimes there is a delay when I type 
> (letters are displayed few second after typing). Apt unpack take 
> forewer (5 hours to unpack packages when upgrading to bulleye).
>
That looks abnormal to me. Have you tried to update SSD firmware¹ and 
BIOS for your Dell PC?
LiteOn Storage branch was bought by KIOXIA (Toshiba), so I can't find 
any official information about technical specifications of SSD you have, 
but just by looking at its photos, I assume it is an average one, with 
external cache and TLC NAND chips.
The performance of a NVMe looks like it working at slower x2 speed, 
instead of utilizing full x4 lanes. But it could be also its normal 
working state and delays\slowdowns could come from parts unrelated to 
NVMe, like SATA HDDs.
A "smartctl" output for all storage devices could be useful.

> The computer is a recent Dell precision desktop with i9-9900 as CPU, 
> an NVIDIA GP107GL [Quadro P400] (and the GPU integrated to the CPU). 
> The nvme SSD is supposed to be a decent one. This desktop is yet a lot 
> slower than my (more basic) laptop.
>
> Complete system info: https://pastebin.com/zaGVEpae
>


[1] 
https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=0n4c4

-- 
With kindest regards, Alexander.

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nvme SSD and poor performance Pierre Willaime <pierre.willaime@univ-lorraine.fr> - 2021-08-17 12:10 +0200
  Re: nvme SSD and poor performance Dan Ritter <dsr@randomstring.org> - 2021-08-17 14:10 +0200
    Re: nvme SSD and poor performance Pierre Willaime <pierre.willaime@univ-lorraine.fr> - 2021-08-17 15:20 +0200
      Re: nvme SSD and poor performance Dan Ritter <dsr@randomstring.org> - 2021-08-17 16:10 +0200
      Re: nvme SSD and poor performance David Christensen <dpchrist@holgerdanske.com> - 2021-08-18 00:30 +0200
        Re: nvme SSD and poor performance Pierre Willaime <pierre.willaime@univ-lorraine.fr> - 2021-08-20 11:00 +0200
          Re: nvme SSD and poor performance Christian Britz <cbritz@t-online.de> - 2021-08-20 17:50 +0200
            Re: nvme SSD and poor performance Tixy <tixy@yxit.co.uk> - 2021-08-20 19:40 +0200
          Re: nvme SSD and poor performance Linux-Fan <Ma_Sys.ma@web.de> - 2021-08-20 19:20 +0200
          Re: nvme SSD and poor performance "Alexander V. Makartsev" <avbetev@gmail.com> - 2021-08-20 19:50 +0200
            Re: nvme SSD and poor performance Pierre Willaime <pierre.willaime@univ-lorraine.fr> - 2021-08-23 10:50 +0200
              Re: nvme SSD and poor performance "Alexander V. Makartsev" <avbetev@gmail.com> - 2021-08-23 14:10 +0200
                Re: nvme SSD and poor performance piorunz <piorunz@gmx.com> - 2021-08-23 14:20 +0200
          Re: nvme SSD and poor performance David Christensen <dpchrist@holgerdanske.com> - 2021-08-21 04:10 +0200
  Re: nvme SSD and poor performance Linux-Fan <Ma_Sys.ma@web.de> - 2021-08-17 15:40 +0200
    Re: nvme SSD and poor performance Marco Möller <talby@debianlists.mobilxpress.net> - 2021-08-17 16:10 +0200
      Re: nvme SSD and poor performance piorunz <piorunz@gmx.com> - 2021-08-20 18:30 +0200
        Re: nvme SSD and poor performance Marco Möller <talby@debianlists.mobilxpress.net> - 2021-08-20 19:20 +0200
          Re: nvme SSD and poor performance piorunz <piorunz@gmx.com> - 2021-08-20 20:10 +0200
    Re: nvme SSD and poor performance Christian Britz <cbritz@t-online.de> - 2021-08-17 17:30 +0200
      Re: nvme SSD and poor performance Linux-Fan <Ma_Sys.ma@web.de> - 2021-08-17 17:40 +0200
  Re: nvme SSD and poor performance Stefan Monnier <monnier@iro.umontreal.ca> - 2021-08-17 17:00 +0200
  Re: nvme SSD and poor performance Jochen Spieker <ml@well-adjusted.de> - 2021-08-18 22:00 +0200
    Re: nvme SSD and poor performance Anssi Saari <as@sci.fi> - 2021-08-19 08:10 +0200
      Re: nvme SSD and poor performance Sven Hartge <sven@svenhartge.de> - 2021-08-21 15:00 +0200

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