apport information ** Tags added: apport-collected noble wayland-session
** Description changed: My sysctl vm.swappiness returns vm.swappiness = 180. Swap kicked in when RAM is filled around 95%. I’m using zRAM as the swap. When this happened, my laptop is barely usable, as the system would have to do both the swap and compression at the same time. If `vm.swappiness = 180` worked as intended, the issue wouldn't have happened, as the swap would kick in early, which is good for zRAM system like mine, see kernel docs: https://docs.kernel.org/admin-guide/sysctl/vm.html#swappiness This is my main workstation (laptop). I used to run openSUSE Tumbleweed on it (~2 years). The experience with `vm.swappiness` is totally different. --- Here's my zRAM script: ``` #!/bin/bash mem_total_kb=$(grep MemTotal /proc/meminfo | grep -E --only-matching '[[:digit:]]+') mem_total=$((mem_total_kb * 1536)) modprobe zram echo zstd > /sys/block/zram0/comp_algorithm; echo $mem_total > /sys/block/zram0/disksize mkswap /dev/zram0 swapon -p 100 /dev/zram0 ``` Here's the content of my /etc/sysctl.conf ``` vm.swappiness=180 vm.page-cluster=0 vm.watermark_scaling_factor=125 vm.watermark_boost_factor=0 ``` I make a fresh install, not upgrading from the previous release. I also upload the screen recording of this issue on my personal Proton drive here: https://drive.proton.me/urls/5KTCS1DF58#qZTscuv5XE0M - I mount ~/ramtest in the RAM, then copy the system's usr folder to - ~/ramtest. Since most contents in usr are compressible, it should be - perfect to show this issue. + I mount ~/ramtest in the RAM, then copy the system's usr folder to ~/ramtest. Since most contents in usr are compressible, it should be perfect to show this issue. + --- + ProblemType: Bug + ApportVersion: 2.28.1-0ubuntu2 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/seq: archerallstars 4444 F.... pipewire + /dev/snd/controlC0: archerallstars 4448 F.... wireplumber + CRDA: N/A + CasperMD5CheckResult: pass + CurrentDesktop: ubuntu:GNOME + DistroRelease: Ubuntu 24.04 + InstallationDate: Installed on 2024-04-27 (5 days ago) + InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424) + MachineType: Acer Swift SF514-52T + NonfreeKernelModules: zfs + Package: linux (not installed) + ProcFB: 0 i915drmfb + ProcKernelCmdLine: BOOT_IMAGE=/BOOT/ubuntu_o799y4@/vmlinuz-6.8.0-31-generic root=ZFS=rpool/ROOT/ubuntu_o799y4 ro quiet splash vt.handoff=1 + ProcVersionSignature: Ubuntu 6.8.0-31.31-generic 6.8.1 + PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. + RelatedPackageVersions: + linux-restricted-modules-6.8.0-31-generic N/A + linux-backports-modules-6.8.0-31-generic N/A + linux-firmware 20240318.git3b128b60-0ubuntu2 + Tags: noble wayland-session + Uname: Linux 6.8.0-31-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip libvirt lpadmin plugdev sudo users + _MarkForUpload: True + dmi.bios.date: 11/26/2018 + dmi.bios.release: 1.11 + dmi.bios.vendor: Insyde Corp. + dmi.bios.version: V1.11 + dmi.board.name: Carlsberg_KL + dmi.board.vendor: KBL + dmi.board.version: V1.11 + dmi.chassis.type: 10 + dmi.chassis.vendor: Acer + dmi.chassis.version: V1.11 + dmi.ec.firmware.release: 1.5 + dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.11:bd11/26/2018:br1.11:efr1.5:svnAcer:pnSwiftSF514-52T:pvrV1.11:rvnKBL:rnCarlsberg_KL:rvrV1.11:cvnAcer:ct10:cvrV1.11:sku0000000000000000: + dmi.product.family: Swift 5 + dmi.product.name: Swift SF514-52T + dmi.product.sku: 0000000000000000 + dmi.product.version: V1.11 + dmi.sys.vendor: Acer + modified.conffile..etc.default.apport: + # set this to 0 to disable apport, or to 1 to enable it + # you can temporarily override this with + # sudo service apport start force_start=1 + enabled=0 + mtime.conffile..etc.default.apport: 2024-04-27T05:52:33.862578 ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/2064483/+attachment/5773792/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2064483 Title: Ubuntu 24.04 doesn't respect vm.swappiness To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2064483/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
