Hm, yeah this should maybe be configurable. Or, maybe oomd should decrease the event interval when resource usage is well below the limit.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/2084100 Title: systemd-oomd wakeups every second Status in systemd package in Ubuntu: New Bug description: Hello, I noticed via opensnoop-bpfcc that systemd-oomd was opening a set of files every single second. We're trying to reduce the overall power use of our systems and this feels like a lot of overhead. A bit of the strace from it: gettid() = 2140 timerfd_settime(9, TFD_TIMER_ABSTIME, {it_interval={tv_sec=0, tv_nsec=0}, it_value={tv_sec=1282676, tv_nsec=647711000}}, NULL) = 0 epoll_wait(5, [{events=EPOLLIN, data={u32=2450295072, u64=106375905315104}}], 24, -1) = 1 read(9, "\1\0\0\0\0\0\0\0", 8) = 8 openat(AT_FDCWD, "/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.pressure", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 read(8, "some avg10=0.00 avg60=0.00 avg30"..., 4096) = 94 ioctl(8, TCGETS, 0x7ffceadb5880) = -1 ENOTTY (Inappropriate ioctl for device) ioctl(8, TCGETS, 0x7ffceadb5880) = -1 ENOTTY (Inappropriate ioctl for device) read(8, "", 4096) = 0 close(8) = 0 openat(AT_FDCWD, "/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.current", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 read(8, "851992576\n", 4096) = 10 ioctl(8, TCGETS, 0x7ffceadb5870) = -1 ENOTTY (Inappropriate ioctl for device) read(8, "", 4096) = 0 close(8) = 0 openat(AT_FDCWD, "/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.min", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 read(8, "0\n", 4096) = 2 ioctl(8, TCGETS, 0x7ffceadb5870) = -1 ENOTTY (Inappropriate ioctl for device) read(8, "", 4096) = 0 close(8) = 0 openat(AT_FDCWD, "/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.low", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 read(8, "0\n", 4096) = 2 ioctl(8, TCGETS, 0x7ffceadb5870) = -1 ENOTTY (Inappropriate ioctl for device) read(8, "", 4096) = 0 close(8) = 0 openat(AT_FDCWD, "/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.swap.current", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 read(8, "0\n", 4096) = 2 ioctl(8, TCGETS, 0x7ffceadb5870) = -1 ENOTTY (Inappropriate ioctl for device) read(8, "", 4096) = 0 close(8) = 0 openat(AT_FDCWD, "/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.stat", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 fstat(8, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 read(8, "anon 502538240\nfile 268328960\nke"..., 4096) = 955 read(8, "", 4096) = 0 close(8) = 0 gettid() = 2140 timerfd_settime(9, TFD_TIMER_ABSTIME, {it_interval={tv_sec=0, tv_nsec=0}, it_value={tv_sec=1282677, tv_nsec=897711000}}, NULL) = 0 epoll_wait(5, [{events=EPOLLIN, data={u32=2450295072, u64=106375905315104}}], 24, -1) = 1 read(9, "\1\0\0\0\0\0\0\0", 8) = 8 openat(AT_FDCWD, "/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.pressure", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 read(8, "some avg10=0.00 avg60=0.00 avg30"..., 4096) = 94 ioctl(8, TCGETS, 0x7ffceadb5880) = -1 ENOTTY (Inappropriate ioctl for device) ioctl(8, TCGETS, 0x7ffceadb5880) = -1 ENOTTY (Inappropriate ioctl for device) read(8, "", 4096) = 0 close(8) = 0 openat(AT_FDCWD, "/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.current", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 read(8, "851472384\n", 4096) = 10 ioctl(8, TCGETS, 0x7ffceadb5870) = -1 ENOTTY (Inappropriate ioctl for device) read(8, "", 4096) = 0 close(8) = 0 openat(AT_FDCWD, "/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.min", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 read(8, "0\n", 4096) = 2 ioctl(8, TCGETS, 0x7ffceadb5870) = -1 ENOTTY (Inappropriate ioctl for device) read(8, "", 4096) = 0 close(8) = 0 openat(AT_FDCWD, "/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.low", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 read(8, "0\n", 4096) = 2 ioctl(8, TCGETS, 0x7ffceadb5870) = -1 ENOTTY (Inappropriate ioctl for device) read(8, "", 4096) = 0 close(8) = 0 openat(AT_FDCWD, "/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.swap.current", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 read(8, "0\n", 4096) = 2 ioctl(8, TCGETS, 0x7ffceadb5870) = -1 ENOTTY (Inappropriate ioctl for device) read(8, "", 4096) = 0 close(8) = 0 openat(AT_FDCWD, "/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.stat", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 fstat(8, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 read(8, "anon 502542336\nfile 268328960\nke"..., 4096) = 955 read(8, "", 4096) = 0 close(8) = 0 gettid() = 2140 timerfd_settime(9, TFD_TIMER_ABSTIME, {it_interval={tv_sec=0, tv_nsec=0}, it_value={tv_sec=1282679, tv_nsec=147711000}}, NULL) = 0 epoll_wait(5, [{events=EPOLLIN, data={u32=2450295072, u64=106375905315104}}], 24, -1) = 1 read(9, "\1\0\0\0\0\0\0\0", 8) = 8 openat(AT_FDCWD, "/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.pressure", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 read(8, "some avg10=0.00 avg60=0.00 avg30"..., 4096) = 94 ioctl(8, TCGETS, 0x7ffceadb5880) = -1 ENOTTY (Inappropriate ioctl for device) ioctl(8, TCGETS, 0x7ffceadb5880) = -1 ENOTTY (Inappropriate ioctl for device) read(8, "", 4096) = 0 close(8) = 0 openat(AT_FDCWD, "/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.current", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 read(8, "851906560\n", 4096) = 10 ioctl(8, TCGETS, 0x7ffceadb5870) = -1 ENOTTY (Inappropriate ioctl for device) read(8, "", 4096) = 0 close(8) = 0 openat(AT_FDCWD, "/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.min", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 read(8, "0\n", 4096) = 2 ioctl(8, TCGETS, 0x7ffceadb5870) = -1 ENOTTY (Inappropriate ioctl for device) read(8, "", 4096) = 0 close(8) = 0 openat(AT_FDCWD, "/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.low", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 read(8, "0\n", 4096) = 2 ioctl(8, TCGETS, 0x7ffceadb5870) = -1 ENOTTY (Inappropriate ioctl for device) read(8, "", 4096) = 0 close(8) = 0 openat(AT_FDCWD, "/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.swap.current", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 read(8, "0\n", 4096) = 2 ioctl(8, TCGETS, 0x7ffceadb5870) = -1 ENOTTY (Inappropriate ioctl for device) read(8, "", 4096) = 0 close(8) = 0 openat(AT_FDCWD, "/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/memory.stat", O_RDONLY|O_CLOEXEC) = 8 fstat(8, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 fstat(8, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 read(8, "anon 502542336\nfile 268328960\nke"..., 4096) = 955 read(8, "", 4096) = 0 close(8) = 0 gettid() = 2140 timerfd_settime(9, TFD_TIMER_ABSTIME, {it_interval={tv_sec=0, tv_nsec=0}, it_value={tv_sec=1282680, tv_nsec=397711000}}, NULL) = 0 epoll_wait(5, ^Cstrace: Process 2140 detached <detached ...> Thanks ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: systemd-oomd 255.4-1ubuntu8.4 ProcVersionSignature: Ubuntu 6.8.0-44.44-generic 6.8.12 Uname: Linux 6.8.0-44-generic x86_64 NonfreeKernelModules: zfs ApportVersion: 2.28.1-0ubuntu3.1 Architecture: amd64 CasperMD5CheckResult: pass Date: Wed Oct 9 13:30:34 2024 InstallationDate: Installed on 2023-01-05 (644 days ago) InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809.1) ProcEnviron: LANG=en_US.UTF-8 LC_TIME=C PATH=(custom, no user) SHELL=/bin/bash TERM=rxvt-unicode-256color RebootRequiredPkgs: Error: path contained symlinks. SourcePackage: systemd UpgradeStatus: Upgraded to noble on 2024-07-31 (71 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/2084100/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
