1. Please describe the problem: NVMe performance drop after upgrade from F25 fo F34. 2. What is the Version-Release number of the kernel: 5.11.16-300.fc34.x86_64 4. Can you reproduce this issue? If so, please provide the steps to reproduce the issue below: Host dmidecode -s system-manufacturer LENOVO dmidecode -s system-version ThinkPad T460s dmidecode -s system-product-name 20FAS23200 Device smartctl -i /dev/nvme0n1 | egrep "Model|Firmw" Model Number: CT1000P2SSD8 Firmware Version: P2CR033 Test1 cat /etc/fedora-release Fedora release 25 (Twenty Five) uname -a Linux localhost.localdomain 4.13.16-100.fc25.i686 #1 SMP Mon Nov 27 20:46:38 UTC 2017 i686 i686 i386 GNU/Linux hdparm -tT /dev/nvme0n1 Timing cached reads: 14900 MB in 2.00 seconds = 7460.67 MB/sec Timing buffered disk reads: 8314 MB in 3.00 seconds = 2770.59 MB/sec Test2 cat /etc/fedora-release Fedora release 34 (Thirty Four) uname -a Linux fedora 5.11.16-300.fc34.x86_64 #1 SMP Wed Apr 21 13:18:33 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux hdparm -tT /dev/nvme0n1 Timing cached reads: 16320 MB in 1.99 seconds = 8198.83 MB/sec Timing buffered disk reads: 6680 MB in 3.00 seconds = 2226.07 MB/sec 6. Are you running any modules that not shipped with directly Fedora's kernel?: No
Please note that hdparm benchmark is of no significance, real use case scenarios might give you different numbers. Also it's not uncommon to observe difference in performance between kernel versions. You'd need to run extensive test suites to get the whole picture of your storage subsystem performance.
This message is a reminder that Fedora Linux 34 is nearing its end of life. Fedora will stop maintaining and issuing updates for Fedora Linux 34 on 2022-06-07. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as EOL if it remains open with a 'version' of '34'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, change the 'version' to a later Fedora Linux version. Thank you for reporting this issue and we are sorry that we were not able to fix it before Fedora Linux 34 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora Linux, you are encouraged to change the 'version' to a later version prior to this bug being closed.
Fedora Linux 34 entered end-of-life (EOL) status on 2022-06-07. Fedora Linux 34 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. Thank you for reporting this bug and we are sorry it could not be fixed.