Tried 4.15.0-102, 5.4.0-33 and mailing kernel all three show similar performance (~2100MB/s).
Please test latest mainline kernel: https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.7-rc7/ And decide what's the next step based on the performance of mainline kernel. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1880943 Title: [focal] disk I/O performance regression To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1880943/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
