{"id":13578742,"url":"https://github.com/hakavlad/nohang","last_synced_at":"2025-05-16T18:06:33.356Z","repository":{"id":41168852,"uuid":"136584167","full_name":"hakavlad/nohang","owner":"hakavlad","description":"A sophisticated low memory handler for Linux","archived":false,"fork":false,"pushed_at":"2024-01-28T15:00:59.000Z","size":939,"stargazers_count":1121,"open_issues_count":36,"forks_count":49,"subscribers_count":17,"default_branch":"master","last_synced_at":"2025-05-16T18:06:06.956Z","etag":null,"topics":["cgroups","oom","oom-killer","out-of-memory","psi","sigterm","zram"],"latest_commit_sha":null,"homepage":"","language":"Python","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/hakavlad.png","metadata":{"files":{"readme":"README.md","changelog":"CHANGELOG.md","contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null}},"created_at":"2018-06-08T07:36:50.000Z","updated_at":"2025-05-12T17:13:08.000Z","dependencies_parsed_at":"2024-01-07T21:02:41.273Z","dependency_job_id":"96995c03-2748-4051-aa5b-23d3c455c530","html_url":"https://github.com/hakavlad/nohang","commit_stats":null,"previous_names":[],"tags_count":2,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/hakavlad%2Fnohang","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/hakavlad%2Fnohang/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/hakavlad%2Fnohang/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/hakavlad%2Fnohang/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/hakavlad","download_url":"https://codeload.github.com/hakavlad/nohang/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":254582904,"owners_count":22095518,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["cgroups","oom","oom-killer","out-of-memory","psi","sigterm","zram"],"created_at":"2024-08-01T15:01:33.372Z","updated_at":"2025-05-16T18:06:33.336Z","avatar_url":"https://github.com/hakavlad.png","language":"Python","funding_links":[],"categories":["Python","others"],"sub_categories":[],"readme":"![pic](https://i.imgur.com/scXQ312.png)\n\n# nohang\n\n[![Build Status](https://travis-ci.org/hakavlad/nohang.svg?branch=master)](https://travis-ci.org/hakavlad/nohang)\n![CodeQL](https://github.com/hakavlad/nohang/workflows/CodeQL/badge.svg)\n[![Packaging status](https://repology.org/badge/tiny-repos/nohang.svg)](https://repology.org/project/nohang/versions)\n\n`nohang` package provides a highly configurable daemon for Linux which is able to correctly prevent [out of memory](https://en.wikipedia.org/wiki/Out_of_memory) (OOM) and keep system responsiveness in low memory conditions.\n\nThe package also includes additional diagnostic tools (`oom-sort`, `psi2log`, `psi-top`).\n\n## What is the problem?\n\nOOM conditions may cause [freezes](https://en.wikipedia.org/wiki/Hang_(computing)), [livelocks](https://en.wikipedia.org/wiki/Deadlock#Livelock), drop [caches](https://en.wikipedia.org/wiki/Page_cache) and processes to be killed (via sending [SIGKILL](https://en.wikipedia.org/wiki/Signal_(IPC)#SIGKILL)) instead of trying to terminate them correctly (via sending [SIGTERM](https://en.wikipedia.org/wiki/Signal_(IPC)#SIGTERM) or takes other corrective action). Some applications may crash if it's impossible to allocate memory.\n\nHere are the statements of some users:\n\n\u003e \"How do I prevent Linux from freezing when out of memory?\nToday I (accidentally) ran some program on my Linux box that quickly used a lot of memory. My system froze, became unresponsive and thus I was unable to kill the offender.\nHow can I prevent this in the future? Can't it at least keep a responsive core or something running?\"\n\n— [serverfault](https://serverfault.com/questions/390623/how-do-i-prevent-linux-from-freezing-when-out-of-memory)\n\n\u003e \"With or without swap it still freezes before the OOM killer gets run automatically. This is really a kernel bug that should be fixed (i.e. run OOM killer earlier, before dropping all disk cache). Unfortunately kernel developers and a lot of other folk fail to see the problem. Common suggestions such as disable/enable swap, buy more RAM, run less processes, set limits etc. do not address the underlying problem that the kernel's low memory handling sucks camel's balls.\"\n\n— [serverfault](https://serverfault.com/questions/390623/how-do-i-prevent-linux-from-freezing-when-out-of-memory#comment417508_390625)\n\n\u003e \"The traditional Linux OOM killer works fine in some cases, but in others it kicks in too late, resulting in the system entering a [livelock](https://en.wikipedia.org/wiki/Deadlock#Livelock) for an indeterminate period.\"\n\n— [engineering.fb.com](https://engineering.fb.com/production-engineering/oomd/)\n\nAlso look at these discussions:\n- Why are low memory conditions handled so badly? [[r/linux](https://www.reddit.com/r/linux/comments/56r4xj/why_are_low_memory_conditions_handled_so_badly/)]\n- Memory management \"more effective\" on Windows than Linux? (in preventing total system lockup) [[r/linux](https://www.reddit.com/r/linux/comments/aqd9mh/memory_management_more_effective_on_windows_than/)]\n- Let's talk about the elephant in the room - the Linux kernel's inability to gracefully handle low memory pressure [[original LKML post](https://lkml.org/lkml/2019/8/4/15) | [r/linux](https://www.reddit.com/r/linux/comments/cmg48b/lets_talk_about_the_elephant_in_the_room_the/) | [Hacker News](https://news.ycombinator.com/item?id=20620545) | [slashdot](https://linux.slashdot.org/story/19/08/06/1839206/linux-performs-poorly-in-low-ram--memory-pressure-situations-on-the-desktop) | [phoronix](https://www.phoronix.com/forums/forum/phoronix/general-discussion/1118164-yes-linux-does-bad-in-low-ram-memory-pressure-situations-on-the-desktop) | [opennet.ru](https://www.opennet.ru/opennews/art.shtml?num=51231) | [linux.org.ru](https://www.linux.org.ru/forum/talks/15151526)]\n\n## Solution\n\nUse one of the userspace OOM killers:\n- [earlyoom](https://github.com/rfjakob/earlyoom): This is a simple, stable and tiny OOM prevention daemon written in C (the best choice for emedded and old servers). It has a minimum dependencies and can work with oldest kernels. It is enabled by default on Fedora 32 Workstation (and F33 KDE).\n- [oomd](https://github.com/facebookincubator/oomd): This is a userspace OOM killer for linux systems written in C++ and developed by Facebook. This is the best choice for use in large data centers. It needs Linux 4.20+.\n- [systemd-oomd](https://man7.org/linux/man-pages/man8/systemd-oomd.service.8.html): Provided by systemd as `systemd-oomd.service` that uses cgroups-v2 and pressure stall information (PSI) to monitor and take action on processes before an OOM occurs in kernel space. It's used by default on [desktop versions of Fedora 34](https://fedoraproject.org/wiki/Changes/EnableSystemdOomd).\n- [low-memory-monitor](https://gitlab.freedesktop.org/hadess/low-memory-monitor/): There's a [project announcement](http://www.hadess.net/2019/08/low-memory-monitor-new-project.html).\n- [psi-monitor](https://github.com/endlessm/eos-boot-helper/tree/master/psi-monitor): It's used by default on [Endless OS](https://endlessos.com/).\n- `nohang`: nohang is earlyoom on steroids and has many useful features, see below. Maybe this is a good choice for modern desktops and servers if you need fine-tuning. Previously it was used by default on [Garuda Linux](https://garudalinux.org/).\n\nUse these tools to improve responsiveness during heavy swapping:\n- MGLRU patchset is merged in Linux 6.1. Setting `min_ttl_ms` \u003e 50 can help you.\n- [le9-patch](https://github.com/hakavlad/le9-patch): [PATCH] mm: Protect clean file pages under memory pressure to prevent thrashing, avoid high latency and prevent livelock in near-OOM conditions. It's kernel-side solution that can fix the OOM killer behavior.\n- [prelockd](https://github.com/hakavlad/prelockd): Lock executables and shared libraries in memory to improve system responsiveness under low-memory conditions.\n- [memavaild](https://github.com/hakavlad/memavaild): Keep amount of available memory by evicting memory of selected cgroups into swap space.\n- [uresourced](https://gitlab.freedesktop.org/benzea/uresourced): This daemon will give resource allocations to active graphical users. It's [enabled by default](https://fedoraproject.org/wiki/Changes/Reserve_resources_for_active_user_WS) on Fedora 33 Workstation.\n\nOf course, you can also [download more RAM](https://downloadmoreram.com/), tune [virtual memory](https://www.kernel.org/doc/Documentation/sysctl/vm.txt), use [zram](https://www.kernel.org/doc/Documentation/blockdev/zram.txt)/[zswap](https://www.kernel.org/doc/Documentation/vm/zswap.txt) and use [limits](https://www.freedesktop.org/software/systemd/man/systemd.resource-control.html) for cgroups.\n\n## Features\n\n- Sending the SIGTERM signal is default corrective action. If the victim does not respond to SIGTERM, with a further drop in the level of memory it gets SIGKILL;\n- Customizing victim selection: impact on the badness of processes via matching their names, cgroups, exe realpathes, environs, cmdlines and euids with specified regular expressions;\n- Customizing corrective actions: if the name or control group of the victim matches a certain regex pattern, you can run any command instead of sending the SIGTERM signal (the default corrective action) to the victim. For example:\n - `systemctl restart foo`;\n - `kill -INT $PID` (you can override the signal sent to the victim, $PID will be replaced by the victim's PID).\n- GUI notifications:\n - Notification of corrective actions taken and displaying the name and PID of the victim;\n - Low memory warnings.\n- [zram](https://www.kernel.org/doc/Documentation/blockdev/zram.txt) support (`mem_used_total` as a trigger);\n- [PSI](https://lwn.net/Articles/759658/) ([pressure stall information](https://facebookmicrosites.github.io/psi/)) support;\n- Optional checking kernel messages for OOM events;\n- Easy setup with configuration files ([nohang.conf](https://github.com/hakavlad/nohang/blob/master/conf/nohang/nohang.conf.in), [nohang-desktop.conf](https://github.com/hakavlad/nohang/blob/master/conf/nohang/nohang-desktop.conf.in)).\n\n## Demo\n\n`nohang` prevents Out Of Memory with GUI notifications:\n\n- [https://youtu.be/ChTNu9m7uMU](https://youtu.be/ChTNu9m7uMU) – just old demo without swap space.\n- [https://youtu.be/UCwZS5uNLu0](https://youtu.be/UCwZS5uNLu0) – running multiple fast memory hogs at the same time without swap space.\n- [https://youtu.be/PLVWgNrVNlc](https://youtu.be/PLVWgNrVNlc) – opening multiple chromium tabs with 2.3 GiB memory and 1.8 GiB swap space on zram.\n\n## Requirements\n\nFor basic usage:\n- `Linux` (\u003e= 3.14, since `MemAvailable` appeared in `/proc/meminfo`)\n- `Python` (\u003e= 3.3)\n\nTo respond to `PSI` metrics (optional):\n- `Linux` (\u003e= 4.20) with `CONFIG_PSI=y`\n\nTo show GUI notifications (optional):\n- [notification server](https://wiki.archlinux.org/index.php/Desktop_notifications#Notification_servers) (most of desktop environments use their own implementations)\n- `libnotify` (Arch Linux, Fedora, openSUSE) or `libnotify-bin` (Debian GNU/Linux, Ubuntu)\n- `sudo` if nohang started with UID=0.\n\n## Memory and CPU usage\n\n- VmRSS is about 10–14 MiB instead of the settings, about 10–11 MiB by default (with Python \u003c= 3.8), about 16–17 MiB with Python 3.9.\n- CPU usage depends on the level of available memory and monitoring intensity.\n\n## Warnings\n\n- the daemon runs with super-user privileges and has full access to all private memory of all processes and sensitive user data;\n- the daemon does not forbid you to shoot yourself in the foot: with some settings, unwanted killings of processes can occur;\n- the daemon is not a panacea: there are no universal settings that reliably protect against all types of threats.\n\n## Known problems\n\n- The documentation is terrible.\n- The ZFS ARC cache is memory-reclaimable, like the Linux buffer cache. However, in contrast to the buffer cache, it currently does not count to MemAvailable (see [openzfs/zfs#10255](https://github.com/openzfs/zfs/issues/10255)). See also https://github.com/rfjakob/earlyoom/pull/191 and https://github.com/hakavlad/nohang/issues/89.\n- Linux kernels without `CONFIG_CGROUP_CPUACCT=y` ([linux-ck](https://wiki.archlinux.org/index.php/Linux-ck), for example) provide incorrect PSI metrics, see [issue](https://github.com/hakavlad/nohang/issues/25#issuecomment-643716504).\n\n## nohang vs nohang-desktop\n\n`nohang` comes with two configs: `nohang.conf` and `nohang-desktop.conf`. `nohang` comes with two systemd service unit files: `nohang.service` and `nohang-desktop.service`. Choose one.\n\n- `nohang.conf` provides vanilla default settings without PSI checking enabled, without any badness correction and without GUI notifications enabled.\n- `nohang-desktop.conf` provides default settings optimized for desktop usage.\n\n## How to install\n\n#### To install on [Fedora](https://src.fedoraproject.org/rpms/nohang/):\n\nOrphaned for 6+ weeks, not available.\n\n#### To install on RHEL 7 and RHEL 8:\n\nnohang is avaliable in [EPEL repos](https://fedoraproject.org/wiki/EPEL).\n```bash\nsudo yum install nohang\nsudo systemctl enable nohang.service\nsudo systemctl start nohang.service\n```\nTo enable PSI on RHEL 8 pass `psi=1` to kernel boot cmdline.\n\n#### For Arch Linux there's an [AUR package](https://aur.archlinux.org/packages/nohang-git/)\n\nUse your favorite [AUR helper](https://wiki.archlinux.org/index.php/AUR_helpers). For example,\n```bash\nyay -S nohang-git\nsudo systemctl enable --now nohang-desktop.service\n```\n\n#### To install on Ubuntu 20.04/20.10\n\nTo install from [PPA](https://launchpad.net/~oibaf/+archive/ubuntu/test/):\n```bash\nsudo add-apt-repository ppa:oibaf/test\nsudo apt update\nsudo apt install nohang\nsudo systemctl enable --now nohang-desktop.service\n```\n\n#### To install on Debian and Ubuntu-based systems:\n\nOutdated and buggy nohang v0.1 release was packaged for [Debian 11](https://packages.debian.org/bullseye/source/nohang) and [Ubuntu 20.10](https://packages.ubuntu.com/source/groovy/nohang).\n\nIt's easy to build a deb package with the latest git snapshot. Install build dependencies:\n```bash\nsudo apt install make fakeroot\n```\n\nClone the latest git snapshot and run the build script to build the package:\n```bash\ngit clone https://github.com/hakavlad/nohang.git \u0026\u0026 cd nohang\ndeb/build.sh\n```\n\nInstall the package:\n```bash\nsudo apt install --reinstall ./deb/package.deb\n```\n\nStart and enable `nohang.service` or `nohang-desktop.service` after installing the package:\n```bash\nsudo systemctl enable --now nohang-desktop.service\n```\n\n#### To install on Gentoo and derivatives (e.g. Funtoo):\n\nAdd the [eph kit](https://git.sr.ht/~happy_shredder/eph_kit) overlay, for example using layman or as a local repository.\nThen update your repos:\n\n```bash\nsudo layman -S # if added via layman\nsudo emerge --sync # local repo on Gentoo\nsudo ego sync # local repo on Funtoo\n```\n\nInstall:\n\n```bash\nsudo emerge -a nohang\n```\n\nStart the service:\n\n```bash\nsudo rc-service nohang-desktop start\n```\n\nOptionally add to startup:\n\n```bash\nsudo rc-update add nohang-desktop default\n```\n\n#### To install the latest version on any distro:\n```bash\ngit clone https://github.com/hakavlad/nohang.git \u0026\u0026 cd nohang\nsudo make install\n```\n\nConfig files will be located in `/usr/local/etc/nohang/`. To enable and start unit without GUI notifications:\n```bash\nsudo systemctl enable --now nohang.service\n```\n\nTo enable and start unit with GUI notifications:\n```bash\nsudo systemctl enable --now nohang-desktop.service\n```\n\nOn systems with OpenRC:\n```bash\nsudo make install-openrc\n```\n\nTo uninstall:\n```bash\nsudo make uninstall\n```\n\n## Command line options\n\n```\n./nohang -h\nusage: nohang [-h|--help] [-v|--version] [-m|--memload]\n [-c|--config CONFIG] [--check] [--monitor] [--tasks]\n\noptional arguments:\n -h, --help show this help message and exit\n -v, --version show version of installed package and exit\n -m, --memload consume memory until 40 MiB (MemAvailable + SwapFree)\n remain free, and terminate the process\n -c CONFIG, --config CONFIG\n path to the config file. This should only be used\n with one of the following options:\n --monitor, --tasks, --check\n --check check and show the configuration and exit. This should\n only be used with -c/--config CONFIG option\n --monitor start monitoring. This should only be used with\n -c/--config CONFIG option\n --tasks show tasks state and exit. This should only be used\n with -c/--config CONFIG option\n```\n\n## How to configure\n\nThe program can be configured by editing the config file. The configuration includes the following sections:\n\n0. Checking kernel messages for OOM events;\n1. Common zram settings;\n2. Common PSI settings;\n3. Poll rate;\n4. Warnings and notifications;\n5. Soft threshold;\n6. Hard threshold;\n7. Customize victim selection;\n8. Customize soft corrective actions;\n9. Misc settings;\n10. Verbosity, debug, logging.\n\nJust read the description of the parameters and edit the values. Please restart the daemon to apply the changes.\n\n## How to test nohang\n\n- The safest way is to run `nohang --memload`. This causes memory consumption, and the process will exits before OOM occurs.\n- Another way is to run `tail /dev/zero`. This causes fast memory comsumption and causes OOM at the end.\n\nIf testing occurs while `nohang` is running, these processes should be terminated before OOM occurs.\n\n## Tasks state\n\nRun `sudo nohang -c/--config CONFIG --tasks` to see the table of prosesses with their badness values, oom_scores, names, UIDs etc.\n\n\u003cdetails\u003e\n \u003csummary\u003eOutput example\u003c/summary\u003e\n\n```\nConfig: /etc/nohang/nohang.conf\n###################################################################################################################\n# PID PPID badness oom_score oom_score_adj eUID S VmSize VmRSS VmSwap Name CGroup\n#------- ------- ------- --------- ------------- ---------- - ------ ----- ------ --------------- --------\n# 336 1 1 1 0 0 S 85 25 0 systemd-journal /system.slice/systemd-journald.service\n# 383 1 0 0 -1000 0 S 46 5 0 systemd-udevd /system.slice/systemd-udevd.service\n# 526 2238 7 7 0 1000 S 840 96 0 kate /user.slice/user-1000.slice/session-7.scope\n# 650 1 3 3 0 1000 S 760 50 0 kate /user.slice/user-1000.slice/session-7.scope\n# 731 1 0 0 0 100 S 126 4 0 systemd-timesyn /system.slice/systemd-timesyncd.service\n# 756 1 0 0 0 105 S 181 3 0 rtkit-daemon /system.slice/rtkit-daemon.service\n# 759 1 0 0 0 0 S 277 7 0 accounts-daemon /system.slice/accounts-daemon.service\n# 761 1 0 0 0 0 S 244 3 0 rsyslogd /system.slice/rsyslog.service\n# 764 1 0 0 -900 108 S 45 5 0 dbus-daemon /system.slice/dbus.service\n# 805 1 0 0 0 0 S 46 5 0 systemd-logind /system.slice/systemd-logind.service\n# 806 1 0 0 0 0 S 35 3 0 irqbalance /system.slice/irqbalance.service\n# 813 1 0 0 0 0 S 29 3 0 cron /system.slice/cron.service\n# 814 1 11 11 0 0 S 176 160 0 memlockd /system.slice/memlockd.service\n# 815 1 0 0 -10 0 S 32 9 0 python3 /fork.slice/fork-bomb.slice/fork-bomb-killer.slice/fork-bomb-killer.service\n# 823 1 0 0 0 0 S 25 4 0 smartd /system.slice/smartd.service\n# 826 1 0 0 0 113 S 46 3 0 avahi-daemon /system.slice/avahi-daemon.service\n# 850 826 0 0 0 113 S 46 0 0 avahi-daemon /system.slice/avahi-daemon.service\n# 868 1 0 0 0 0 S 281 8 0 polkitd /system.slice/polkit.service\n# 903 1 1 1 0 0 S 4094 16 0 stunnel4 /system.slice/stunnel4.service\n# 940 1 0 0 -600 0 S 39 10 0 python3 /nohang.slice/nohang.service\n# 1014 1 0 0 0 13 S 22 2 0 obfs-local /system.slice/obfs-local.service\n# 1015 1 0 0 0 1000 S 36 4 0 ss-local /system.slice/ss-local.service\n# 1023 1 0 0 0 116 S 33 2 0 dnscrypt-proxy /system.slice/dnscrypt-proxy.service\n# 1029 1 1 1 0 119 S 4236 16 0 privoxy /system.slice/privoxy.service\n# 1035 1 0 0 0 0 S 355 6 0 lightdm /system.slice/lightdm.service\n# 1066 1 0 0 0 0 S 45 7 0 wpa_supplicant /system.slice/wpa_supplicant.service\n# 1178 1 0 0 0 0 S 14 2 0 agetty /system.slice/system-getty.slice/getty@tty1.service\n# 1294 1 0 0 -1000 0 S 4 1 0 watchdog /system.slice/watchdog.service\n# 1632 1 1 1 0 1000 S 1391 22 0 pulseaudio /user.slice/user-1000.slice/session-2.scope\n# 1689 1632 0 0 0 1000 S 125 5 0 gconf-helper /user.slice/user-1000.slice/session-2.scope\n# 1711 1 0 0 0 0 S 367 8 0 udisksd /system.slice/udisks2.service\n# 1819 1 0 0 0 0 S 304 8 0 upowerd /system.slice/upower.service\n# 1879 1 0 0 0 1000 S 64 7 0 systemd /user.slice/user-1000.slice/user@1000.service/init.scope\n# 1880 1879 0 0 0 1000 S 229 2 0 (sd-pam) /user.slice/user-1000.slice/user@1000.service/init.scope\n# 1888 1 0 0 0 0 S 14 2 0 agetty /system.slice/system-getty.slice/getty@tty2.service\n# 1889 1 0 0 0 0 S 14 2 0 agetty /system.slice/system-getty.slice/getty@tty3.service\n# 1890 1 0 0 0 0 S 14 2 0 agetty /system.slice/system-getty.slice/getty@tty4.service\n# 1891 1 0 0 0 0 S 14 2 0 agetty /system.slice/system-getty.slice/getty@tty5.service\n# 1892 1 0 0 0 0 S 14 2 0 agetty /system.slice/system-getty.slice/getty@tty6.service\n# 1893 1035 14 14 0 0 R 623 208 0 Xorg /system.slice/lightdm.service\n# 1904 1 0 0 0 111 S 64 7 0 systemd /user.slice/user-111.slice/user@111.service/init.scope\n# 1905 1904 0 0 0 111 S 229 2 0 (sd-pam) /user.slice/user-111.slice/user@111.service/init.scope\n# 1916 1904 0 0 0 111 S 44 3 0 dbus-daemon /user.slice/user-111.slice/user@111.service/dbus.service\n# 1920 1 0 0 0 111 S 215 5 0 at-spi2-registr /user.slice/user-111.slice/session-c2.scope\n# 1922 1904 0 0 0 111 S 278 6 0 gvfsd /user.slice/user-111.slice/user@111.service/gvfs-daemon.service\n# 1935 1035 0 0 0 0 S 238 6 0 lightdm /user.slice/user-1000.slice/session-7.scope\n# 1942 1 0 0 0 1000 S 210 9 0 gnome-keyring-d /user.slice/user-1000.slice/session-7.scope\n# 1944 1935 1 1 0 1000 S 411 21 0 mate-session /user.slice/user-1000.slice/session-7.scope\n# 1952 1879 0 0 0 1000 S 45 5 0 dbus-daemon /user.slice/user-1000.slice/user@1000.service/dbus.service\n# 1981 1944 0 0 0 1000 S 11 0 0 ssh-agent /user.slice/user-1000.slice/session-7.scope\n# 1984 1879 0 0 0 1000 S 278 6 0 gvfsd /user.slice/user-1000.slice/user@1000.service/gvfs-daemon.service\n# 1990 1879 0 0 0 1000 S 341 5 0 at-spi-bus-laun /user.slice/user-1000.slice/user@1000.service/at-spi-dbus-bus.service\n# 1995 1990 0 0 0 1000 S 44 4 0 dbus-daemon /user.slice/user-1000.slice/user@1000.service/at-spi-dbus-bus.service\n# 1997 1879 0 0 0 1000 S 215 5 0 at-spi2-registr /user.slice/user-1000.slice/user@1000.service/at-spi-dbus-bus.service\n# 2000 1879 0 0 0 1000 S 184 5 0 dconf-service /user.slice/user-1000.slice/user@1000.service/dbus.service\n# 2009 1944 2 2 0 1000 S 1308 35 0 mate-settings-d /user.slice/user-1000.slice/session-7.scope\n# 2013 1944 2 2 0 1000 S 436 32 0 marco /user.slice/user-1000.slice/session-7.scope\n# 2024 1944 4 4 0 1000 S 1258 55 0 caja /user.slice/user-1000.slice/session-7.scope\n# 2032 1 1 1 0 1000 S 333 18 0 msd-locate-poin /user.slice/user-1000.slice/session-7.scope\n# 2033 1879 0 0 0 1000 S 348 11 0 gvfs-udisks2-vo /user.slice/user-1000.slice/user@1000.service/gvfs-udisks2-volume-monitor.service\n# 2036 1944 1 1 0 1000 S 331 17 0 polkit-mate-aut /user.slice/user-1000.slice/session-7.scope\n# 2038 1944 5 5 0 1000 S 682 78 0 mate-panel /user.slice/user-1000.slice/session-7.scope\n# 2041 1944 2 2 0 1000 S 514 31 0 nm-applet /user.slice/user-1000.slice/session-7.scope\n# 2046 1944 1 1 0 1000 S 495 25 0 mate-power-mana /user.slice/user-1000.slice/session-7.scope\n# 2047 1944 2 2 0 1000 S 692 32 0 mate-volume-con /user.slice/user-1000.slice/session-7.scope\n# 2049 1944 3 3 0 1000 S 548 44 0 mate-screensave /user.slice/user-1000.slice/session-7.scope\n# 2059 1879 0 0 0 1000 S 263 5 0 gvfs-goa-volume /user.slice/user-1000.slice/user@1000.service/gvfs-goa-volume-monitor.service\n# 2076 1879 0 0 0 1000 S 352 7 0 gvfsd-trash /user.slice/user-1000.slice/user@1000.service/gvfs-daemon.service\n# 2077 1879 0 0 0 1000 S 362 7 0 gvfs-afc-volume /user.slice/user-1000.slice/user@1000.service/gvfs-afc-volume-monitor.service\n# 2087 1879 0 0 0 1000 S 263 5 0 gvfs-mtp-volume /user.slice/user-1000.slice/user@1000.service/gvfs-mtp-volume-monitor.service\n# 2093 1879 0 0 0 1000 S 275 6 0 gvfs-gphoto2-vo /user.slice/user-1000.slice/user@1000.service/gvfs-gphoto2-volume-monitor.service\n# 2106 1879 3 3 0 1000 S 544 42 0 wnck-applet /user.slice/user-1000.slice/user@1000.service/dbus.service\n# 2108 1879 1 1 0 1000 S 396 21 0 notification-ar /user.slice/user-1000.slice/user@1000.service/dbus.service\n# 2112 1879 1 1 0 1000 S 499 25 0 mate-sensors-ap /user.slice/user-1000.slice/user@1000.service/dbus.service\n# 2113 1879 1 1 0 1000 S 390 21 0 mate-brightness /user.slice/user-1000.slice/user@1000.service/dbus.service\n# 2114 1879 1 1 0 1000 S 534 22 0 mate-multiload- /user.slice/user-1000.slice/user@1000.service/dbus.service\n# 2118 1879 2 2 0 1000 S 547 29 0 clock-applet /user.slice/user-1000.slice/user@1000.service/dbus.service\n# 2152 1879 1 1 0 1000 S 218 22 0 gvfsd-metadata /user.slice/user-1000.slice/user@1000.service/gvfs-metadata.service\n# 2206 1 3 3 0 110 S 106 48 0 tor /system.slice/system-tor.slice/tor@default.service\n# 2229 1 3 3 0 1000 S 999 42 0 kactivitymanage /user.slice/user-1000.slice/session-7.scope\n# 2238 1 0 0 0 1000 S 150 9 0 kdeinit5 /user.slice/user-1000.slice/session-7.scope\n# 2239 2238 3 3 0 1000 S 648 41 0 klauncher /user.slice/user-1000.slice/session-7.scope\n# 3959 1 1 1 0 0 S 615 18 0 NetworkManager /system.slice/NetworkManager.service\n# 3977 3959 0 0 0 0 S 20 4 0 dhclient /system.slice/NetworkManager.service\n# 5626 1879 0 0 0 1000 S 355 7 0 gvfsd-network /user.slice/user-1000.slice/user@1000.service/gvfs-daemon.service\n# 5637 1879 1 1 0 1000 S 623 14 0 gvfsd-smb-brows /user.slice/user-1000.slice/user@1000.service/gvfs-daemon.service\n# 6296 1879 0 0 0 1000 S 435 7 0 gvfsd-dnssd /user.slice/user-1000.slice/user@1000.service/gvfs-daemon.service\n# 11129 1879 3 3 0 1000 S 597 42 0 kded5 /user.slice/user-1000.slice/user@1000.service/dbus.service\n# 11136 1879 2 2 0 1000 S 639 39 0 kuiserver5 /user.slice/user-1000.slice/user@1000.service/dbus.service\n# 11703 1879 3 3 0 1000 S 500 45 0 mate-system-mon /user.slice/user-1000.slice/user@1000.service/dbus.service\n# 16798 1879 0 0 0 1000 S 346 10 0 gvfsd-http /user.slice/user-1000.slice/user@1000.service/gvfs-daemon.service\n# 18133 1 3 3 0 1000 S 760 49 0 kate /user.slice/user-1000.slice/session-7.scope\n# 18144 2038 1 1 0 1000 S 301 23 0 lxterminal /user.slice/user-1000.slice/session-7.scope\n# 18147 18144 0 0 0 1000 S 14 2 0 gnome-pty-helpe /user.slice/user-1000.slice/session-7.scope\n# 18148 18144 1 1 0 1000 S 42 26 0 bash /user.slice/user-1000.slice/session-7.scope\n# 18242 2238 1 1 0 1000 S 194 14 0 file.so /user.slice/user-1000.slice/session-7.scope\n# 18246 18148 0 0 0 0 S 54 4 0 sudo /user.slice/user-1000.slice/session-7.scope\n# 19003 1 0 0 0 0 S 310 12 0 packagekitd /system.slice/packagekit.service\n# 26993 2038 91 91 0 1000 S 3935 1256 0 firefox-esr /user.slice/user-1000.slice/session-7.scope\n# 27275 26993 121 121 0 1000 S 3957 1684 0 Web Content /user.slice/user-1000.slice/session-7.scope\n# 30374 1 1 1 0 1000 S 167 14 0 VBoxXPCOMIPCD /user.slice/user-1000.slice/session-7.scope\n# 30380 1 2 2 0 1000 S 958 27 0 VBoxSVC /user.slice/user-1000.slice/session-7.scope\n# 30549 30380 86 86 0 1000 S 5332 1192 0 VirtualBox /user.slice/user-1000.slice/session-7.scope\n# 30875 1 1 1 0 1000 S 345 26 0 leafpad /user.slice/user-1000.slice/session-7.scope\n# 32689 1 7 7 0 1000 S 896 99 0 dolphin /user.slice/user-1000.slice/session-7.scope\n###################################################################################################################\nProcess with highest badness (found in 55 ms):\n PID: 27275, Name: Web Content, badness: 121\n```\n\u003c/details\u003e\n\n\n## Logging\n\nTo view the latest entries in the log (for systemd users):\n```bash\nsudo journalctl -eu nohang.service\n\n#### or\n\nsudo journalctl -eu nohang-desktop.service\n```\n\nYou can also enable `separate_log` in the config to logging in `/var/log/nohang/nohang.log`.\n\n## oom-sort\n\n`oom-sort` is an additional diagnostic tool that will be installed with `nohang` package. It sorts the processes in descending order of their `oom_score` and also displays `oom_score_adj`, `Uid`, `Pid`, `Name`, `VmRSS`, `VmSwap` and optionally `cmdline`. Run `oom-sort --help` for more info. Man page: [oom-sort.manpage.md](docs/oom-sort.manpage.md).\n\nUsage:\n\n```bash\noom-sort\n```\n\n\u003cdetails\u003e\n \u003csummary\u003eOutput example\u003c/summary\u003e\n\n```\noom_score oom_score_adj UID PID Name VmRSS VmSwap cmdline\n--------- ------------- ---- ----- --------------- ------- -------- -------\n 23 0 0 964 Xorg 58 M 22 M /usr/libexec/Xorg -background none :0 vt01 -nolisten tcp -novtswitch -auth /var/run/lxdm/lxdm-:0.auth\n 13 0 1000 1365 pcmanfm 38 M 10 M pcmanfm --desktop --profile LXDE\n 10 0 1000 1408 dnfdragora-upda 9 M 27 M /usr/bin/python3 /bin/dnfdragora-updater\n 5 0 0 822 firewalld 0 M 19 M /usr/bin/python3 /usr/sbin/firewalld --nofork --nopid\n 5 0 1000 1364 lxpanel 18 M 2 M lxpanel --profile LXDE\n 5 0 1000 1685 nm-applet 6 M 12 M nm-applet\n 5 0 1000 1862 lxterminal 16 M 2 M lxterminal\n 4 0 996 890 polkitd 8 M 6 M /usr/lib/polkit-1/polkitd --no-debug\n 4 0 1000 1703 pnmixer 6 M 11 M pnmixer\n 3 0 0 649 systemd-journal 10 M 1 M /usr/lib/systemd/systemd-journald\n 3 0 1000 1360 openbox 9 M 2 M openbox --config-file /home/user/.config/openbox/lxde-rc.xml\n 3 0 1000 1363 notification-da 3 M 10 M /usr/libexec/notification-daemon\n 2 0 1000 1744 clipit 5 M 3 M clipit\n 2 0 1000 2619 python3 9 M 0 M python3 /bin/oom-sort\n 1 0 0 809 rsyslogd 3 M 3 M /usr/sbin/rsyslogd -n\n 1 0 0 825 udisksd 2 M 2 M /usr/libexec/udisks2/udisksd\n 1 0 0 873 sssd_nss 4 M 1 M /usr/libexec/sssd/sssd_nss --uid 0 --gid 0 --logger=files\n 1 0 0 876 systemd-logind 2 M 2 M /usr/lib/systemd/systemd-logind\n 1 0 0 907 abrt-dump-journ 2 M 1 M /usr/bin/abrt-dump-journal-oops -fxtD\n 1 0 0 920 NetworkManager 3 M 2 M /usr/sbin/NetworkManager --no-daemon\n 1 0 1000 1115 systemd 4 M 1 M /usr/lib/systemd/systemd --user\n 1 0 1000 1118 (sd-pam) 0 M 5 M (sd-pam)\n 1 0 1000 1366 xscreensaver 5 M 0 M xscreensaver -no-splash\n 1 0 1000 1851 gvfsd-trash 3 M 1 M /usr/libexec/gvfsd-trash --spawner :1.6 /org/gtk/gvfs/exec_spaw/0\n 1 0 1000 1969 gvfsd-metadata 6 M 0 M /usr/libexec/gvfsd-metadata\n 1 0 1000 2262 bash 5 M 0 M bash\n 0 -1000 0 675 systemd-udevd 0 M 4 M /usr/lib/systemd/systemd-udevd\n 0 -1000 0 787 auditd 0 M 1 M /sbin/auditd\n 0 0 0 807 ModemManager 0 M 1 M /usr/sbin/ModemManager\n 0 0 0 808 smartd 0 M 1 M /usr/sbin/smartd -n -q never\n 0 0 0 810 alsactl 0 M 0 M /usr/sbin/alsactl -s -n 19 -c -E ALSA_CONFIG_PATH=/etc/alsa/alsactl.conf --initfile=/lib/alsa/init/00main rdaemon\n 0 0 0 811 mcelog 0 M 0 M /usr/sbin/mcelog --ignorenodev --daemon --foreground\n 0 0 172 813 rtkit-daemon 0 M 0 M /usr/libexec/rtkit-daemon\n 0 0 0 814 VBoxService 0 M 1 M /usr/sbin/VBoxService -f\n 0 0 0 817 rngd 0 M 1 M /sbin/rngd -f\n 0 -900 81 818 dbus-daemon 3 M 0 M /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only\n 0 0 0 823 irqbalance 0 M 0 M /usr/sbin/irqbalance --foreground\n 0 0 70 824 avahi-daemon 0 M 0 M avahi-daemon: running [linux.local]\n 0 0 0 826 sssd 0 M 2 M /usr/sbin/sssd -i --logger=files\n 0 0 995 838 chronyd 1 M 0 M /usr/sbin/chronyd\n 0 0 0 849 gssproxy 0 M 1 M /usr/sbin/gssproxy -D\n 0 0 0 866 abrtd 0 M 2 M /usr/sbin/abrtd -d -s\n 0 0 70 870 avahi-daemon 0 M 0 M avahi-daemon: chroot helper\n 0 0 0 871 sssd_be 0 M 2 M /usr/libexec/sssd/sssd_be --domain implicit_files --uid 0 --gid 0 --logger=files\n 0 0 0 875 accounts-daemon 0 M 1 M /usr/libexec/accounts-daemon\n 0 0 0 906 abrt-dump-journ 1 M 2 M /usr/bin/abrt-dump-journal-core -D -T -f -e\n 0 0 0 908 abrt-dump-journ 1 M 2 M /usr/bin/abrt-dump-journal-xorg -fxtD\n 0 0 0 950 crond 2 M 1 M /usr/sbin/crond -n\n 0 0 0 951 atd 0 M 0 M /usr/sbin/atd -f\n 0 0 0 953 lxdm-binary 0 M 0 M /usr/sbin/lxdm-binary\n 0 0 0 1060 dhclient 0 M 2 M /sbin/dhclient -d -q -sf /usr/libexec/nm-dhcp-helper -pf /var/run/dhclient-enp0s3.pid -lf /var/lib/NetworkManager/dhclient-939eab05-4796-3792-af24-9f76cf53ca7f-enp0s3.lease -cf /var/lib/NetworkManager/dhclient-enp0s3.conf enp0s3\n 0 0 0 1105 lxdm-session 0 M 1 M /usr/libexec/lxdm-session\n 0 0 1000 1123 pulseaudio 0 M 3 M /usr/bin/pulseaudio --daemonize=no\n 0 0 1000 1124 lxsession 1 M 2 M /usr/bin/lxsession -s LXDE -e LXDE\n 0 0 1000 1134 dbus-daemon 2 M 0 M /usr/bin/dbus-daemon --session --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only\n 0 0 1000 1215 imsettings-daem 0 M 1 M /usr/libexec/imsettings-daemon\n 0 0 1000 1218 gvfsd 3 M 1 M /usr/libexec/gvfsd\n 0 0 1000 1223 gvfsd-fuse 0 M 1 M /usr/libexec/gvfsd-fuse /run/user/1000/gvfs -f -o big_writes\n 0 0 1000 1309 VBoxClient 0 M 0 M /usr/bin/VBoxClient --display\n 0 0 1000 1310 VBoxClient 0 M 0 M /usr/bin/VBoxClient --clipboard\n 0 0 1000 1311 VBoxClient 0 M 0 M /usr/bin/VBoxClient --draganddrop\n 0 0 1000 1312 VBoxClient 0 M 0 M /usr/bin/VBoxClient --display\n 0 0 1000 1313 VBoxClient 1 M 0 M /usr/bin/VBoxClient --clipboard\n 0 0 1000 1316 VBoxClient 0 M 0 M /usr/bin/VBoxClient --seamless\n 0 0 1000 1318 VBoxClient 0 M 0 M /usr/bin/VBoxClient --seamless\n 0 0 1000 1320 VBoxClient 0 M 0 M /usr/bin/VBoxClient --draganddrop\n 0 0 1000 1334 ssh-agent 0 M 0 M /usr/bin/ssh-agent /bin/sh -c exec -l bash -c \"/usr/bin/startlxde\"\n 0 0 1000 1362 lxpolkit 0 M 1 M lxpolkit\n 0 0 1000 1370 lxclipboard 0 M 1 M lxclipboard\n 0 0 1000 1373 ssh-agent 0 M 1 M /usr/bin/ssh-agent -s\n 0 0 1000 1485 agent 0 M 1 M /usr/libexec/geoclue-2.0/demos/agent\n 0 0 1000 1751 menu-cached 0 M 1 M /usr/libexec/menu-cache/menu-cached /run/user/1000/menu-cached-:0\n 0 0 1000 1780 at-spi-bus-laun 0 M 1 M /usr/libexec/at-spi-bus-launcher\n 0 0 1000 1786 dbus-daemon 1 M 0 M /usr/bin/dbus-daemon --config-file=/usr/share/defaults/at-spi2/accessibility.conf --nofork --print-address 3\n 0 0 1000 1792 at-spi2-registr 1 M 1 M /usr/libexec/at-spi2-registryd --use-gnome-session\n 0 0 1000 1840 gvfs-udisks2-vo 0 M 2 M /usr/libexec/gvfs-udisks2-volume-monitor\n 0 0 1000 1863 gnome-pty-helpe 1 M 0 M gnome-pty-helper\n 0 0 1000 1864 bash 0 M 1 M bash\n 0 0 0 1899 sudo 0 M 1 M sudo -i\n 0 0 0 1901 bash 0 M 1 M -bash\n 0 0 0 1953 oomd_bin 0 M 0 M oomd_bin -f /sys/fs/cgroup/unified\n 0 -600 0 2562 python3 10 M 0 M python3 /usr/sbin/nohang --config /etc/nohang/nohang.conf\n```\n\u003c/details\u003e\n\nKthreads, zombies and Pid 1 will not be displayed.\n\n## psi-top\n\npsi-top is script that prints the PSI metrics values for every cgroup. It requires `Linux` \u003e= 4.20 with `CONFIG_PSI=y`. Man page: [psi-top.manpage.md](docs/psi-top.manpage.md).\n\n\u003cdetails\u003e\n \u003csummary\u003eOutput example\u003c/summary\u003e\n\n```\n$ psi-top\ncgroup2 mountpoint: /sys/fs/cgroup\n avg10 avg60 avg300 avg10 avg60 avg300 cgroup2\n ----- ----- ------ ----- ----- ------ ---------\nsome 0.00 0.21 1.56 | full 0.00 0.16 1.14 [SYSTEM_WIDE]\nsome 0.00 0.21 1.56 | full 0.00 0.16 1.14\nsome 0.00 0.15 1.11 | full 0.00 0.12 0.89 /user.slice\nsome 45.92 28.77 20.19 | full 45.05 28.17 19.56 /user.slice/user-1000.slice\nsome 1.44 4.67 9.24 | full 1.44 4.65 9.20 /user.slice/user-1000.slice/user@1000.service\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /user.slice/user-1000.slice/user@1000.service/pulseaudio.service\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /user.slice/user-1000.slice/user@1000.service/gvfs-daemon.service\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /user.slice/user-1000.slice/user@1000.service/dbus.socket\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /user.slice/user-1000.slice/user@1000.service/gvfs-udisks2-volume-monitor.service\nsome 0.25 1.97 4.05 | full 0.25 1.96 4.03 /user.slice/user-1000.slice/user@1000.service/xfce4-notifyd.service\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /user.slice/user-1000.slice/user@1000.service/init.scope\nsome 0.00 0.66 1.99 | full 0.00 0.66 1.97 /user.slice/user-1000.slice/user@1000.service/gpg-agent.service\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /user.slice/user-1000.slice/user@1000.service/gvfs-gphoto2-volume-monitor.service\nsome 0.93 0.75 0.20 | full 0.93 0.75 0.20 /user.slice/user-1000.slice/user@1000.service/at-spi-dbus-bus.service\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /user.slice/user-1000.slice/user@1000.service/gvfs-metadata.service\nsome 0.00 2.44 6.78 | full 0.00 2.43 6.74 /user.slice/user-1000.slice/user@1000.service/dbus.service\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /user.slice/user-1000.slice/user@1000.service/gvfs-mtp-volume-monitor.service\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /user.slice/user-1000.slice/user@1000.service/gvfs-afc-volume-monitor.service\nsome 44.99 28.30 19.41 | full 44.10 27.70 18.79 /user.slice/user-1000.slice/session-2.scope\nsome 0.00 0.31 0.53 | full 0.00 0.31 0.53 /init.scope\nsome 7.25 11.40 13.34 | full 7.23 11.32 13.24 /system.slice\nsome 0.00 0.01 0.02 | full 0.00 0.01 0.02 /system.slice/systemd-udevd.service\nsome 0.00 0.58 1.55 | full 0.00 0.58 1.55 /system.slice/cronie.service\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /system.slice/sys-kernel-config.mount\nsome 0.00 0.22 0.35 | full 0.00 0.22 0.35 /system.slice/polkit.service\nsome 0.00 0.06 0.20 | full 0.00 0.06 0.20 /system.slice/rtkit-daemon.service\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /system.slice/sys-kernel-debug.mount\nsome 0.00 0.14 0.62 | full 0.00 0.14 0.62 /system.slice/accounts-daemon.service\nsome 7.86 11.48 12.56 | full 7.84 11.42 12.51 /system.slice/lightdm.service\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /system.slice/ModemManager.service\nsome 0.00 1.82 5.47 | full 0.00 1.81 5.43 /system.slice/systemd-journald.service\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /system.slice/dev-mqueue.mount\nsome 0.00 1.64 4.07 | full 0.00 1.64 4.07 /system.slice/NetworkManager.service\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /system.slice/tmp.mount\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /system.slice/lvm2-lvmetad.service\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /system.slice/dev-disk-by\\x2duuid-5d7355c0\\x2dc131\\x2d40c5\\x2d8541\\x2d1e04ad7c8b8d.swap\nsome 0.00 0.09 0.11 | full 0.00 0.09 0.11 /system.slice/upower.service\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /system.slice/udisks2.service\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /system.slice/dev-hugepages.mount\nsome 0.00 0.27 0.49 | full 0.00 0.27 0.48 /system.slice/dbus.service\nsome 0.00 0.00 0.00 | full 0.00 0.00 0.00 /system.slice/system-getty.slice\nsome 0.00 0.12 0.20 | full 0.00 0.12 0.20 /system.slice/avahi-daemon.service\nsome 0.00 0.18 0.30 | full 0.00 0.18 0.30 /system.slice/systemd-logind.service\n```\n\u003c/details\u003e\n\n## psi2log\n\npsi2log is a CLI tool that can check and log PSI metrics from specified target. It requires `Linux` \u003e= 4.20 with `CONFIG_PSI=y`. Man page: [psi2log.manpage.md](docs/psi2log.manpage.md).\n\n\u003cdetails\u003e\n \u003csummary\u003eOutput example\u003c/summary\u003e\n\n```\n$ psi2log\nStarting psi2log\ntarget: SYSTEM_WIDE\nperiod: 2\n------------------------------------------------------------------------------------------------------------------\n some cpu pressure || some memory pressure | full memory pressure || some io pressure | full io pressure\n---------------------||----------------------|----------------------||----------------------|---------------------\n avg10 avg60 avg300 || avg10 avg60 avg300 | avg10 avg60 avg300 || avg10 avg60 avg300 | avg10 avg60 avg300\n------ ------ ------ || ------ ------ ------ | ------ ------ ------ || ------ ------ ------ | ------ ------ ------\n 0.13 0.26 0.08 || 3.36 10.31 3.47 | 2.68 7.69 2.56 || 20.24 26.90 8.60 | 18.80 23.16 7.33\n 0.11 0.25 0.08 || 2.75 9.97 3.45 | 2.20 7.44 2.54 || 18.38 26.34 8.61 | 17.21 22.73 7.35\n 0.09 0.25 0.07 || 2.25 9.65 3.43 | 1.80 7.20 2.52 || 15.05 25.48 8.55 | 14.09 21.99 7.30\n 0.07 0.24 0.07 || 1.84 9.33 3.40 | 1.47 6.96 2.51 || 13.05 24.78 8.52 | 12.26 21.40 7.28\n^C\nPeak values: avg10 avg60 avg300\n----------- ------ ------ ------\nsome cpu 0.13 0.26 0.08\n----------- ------ ------ ------\nsome memory 3.36 10.31 3.47\nfull memory 2.68 7.69 2.56\n----------- ------ ------ ------\nsome io 20.24 26.90 8.61\nfull io 18.80 23.16 7.35\n$ psi2log -t /user.slice -l pm.log\nStarting psi2log\ntarget: /user.slice\nperiod: 2\nlog file: pm.log\ncgroup2 mountpoint: /sys/fs/cgroup\n------------------------------------------------------------------------------------------------------------------\n some cpu pressure || some memory pressure | full memory pressure || some io pressure | full io pressure\n---------------------||----------------------|----------------------||----------------------|---------------------\n avg10 avg60 avg300 || avg10 avg60 avg300 | avg10 avg60 avg300 || avg10 avg60 avg300 | avg10 avg60 avg300\n------ ------ ------ || ------ ------ ------ | ------ ------ ------ || ------ ------ ------ | ------ ------ ------\n 28.32 11.97 3.03 || 0.00 1.05 1.65 | 0.00 0.85 1.33 || 0.55 7.79 7.21 | 0.54 7.52 6.80\n 29.53 12.72 3.25 || 0.00 1.01 1.64 | 0.00 0.82 1.32 || 0.81 7.60 7.17 | 0.44 7.27 6.76\n 29.80 13.32 3.44 || 0.00 0.98 1.63 | 0.00 0.79 1.31 || 0.66 7.35 7.12 | 0.36 7.03 6.71\n 29.83 13.86 3.62 || 0.00 0.95 1.62 | 0.00 0.77 1.30 || 0.54 7.11 7.08 | 0.30 6.80 6.66\n 29.86 14.39 3.80 || 0.00 0.91 1.60 | 0.00 0.74 1.29 || 0.44 6.88 7.03 | 0.24 6.58 6.62\n 30.07 14.94 3.99 || 0.00 0.88 1.59 | 0.00 0.72 1.28 || 0.36 6.65 6.98 | 0.20 6.36 6.57\n^C\nPeak values: avg10 avg60 avg300\n----------- ------ ------ ------\nsome cpu 30.07 14.94 3.99\n----------- ------ ------ ------\nsome memory 0.00 1.05 1.65\nfull memory 0.00 0.85 1.33\n----------- ------ ------ ------\nsome io 0.81 7.79 7.21\nfull io 0.54 7.52 6.80\n```\n\u003c/details\u003e\n\n## Contribution\n\n- Use cases, feature requests and any questions are [welcome](https://github.com/hakavlad/nohang/issues).\n- Pull requests in `dev` branch are welcome.\n\n## Documentation\n\n- [nohang.manpage.md](docs/nohang.manpage.md)\n- [oom-sort.manpage.md](docs/oom-sort.manpage.md)\n- [psi2log.manpage.md](docs/psi2log.manpage.md)\n- [psi-top.manpage.md](docs/psi-top.manpage.md)\n- [FAQ.ru.md](docs/FAQ.ru.md)\n- [CHANGELOG.md](CHANGELOG.md)\n\n## License\n\nThis project is licensed under the terms of the [MIT license](LICENSE).\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fhakavlad%2Fnohang","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fhakavlad%2Fnohang","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fhakavlad%2Fnohang/lists"}