Am Montag, dem 21.08.2023 um 15:06 +0200 schrieb Jan Wasilewski:
Hi,
Let me add a few points. Lastly, I decided to conduct a couple of tests with the newer OpenStack platform - Zed (built by the kolla-ansible project). This platform serves Ubuntu 22.04 LTS on top of my compute nodes. The results were surprising, particularly because I was able to achieve the desired outcomes.
Hi, my bad. I asked two times about your kernel versions, but I failed to state _why_ and I guess we can see here why I asked: newer kernels - in general - have improved performance, especially when it comes to relatively new hardware like NVMe SSD. Your Ubuntu 22.04 should be on a 5.19 based kernel which saw a lot of improvements in the nvme and block area[0]. This is why I asked to run latest stable kernel.org LTS Kernel, to rule out kernel bottlenecks which can often be solved by upgrading. [0]: https://lore.kernel.org/linux-block/83ce22b4-bae1-9c97-1ad5-10835d6c5424@ker... HTH -- Sven Kieske Senior Cloud Engineer Mail: kieske@osism.tech Web: https://osism.tech OSISM GmbH Teckstraße 62 / 70190 Stuttgart / Deutschland Geschäftsführer: Christian Berendt Unternehmenssitz: Stuttgart Amtsgericht: Stuttgart, HRB 756139