KDE Plasma 5.8 ... slow slow slow on SSD

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adriend Registered Member Posts 12 Karma 0 OS	KDE Plasma 5.8 ... slow slow slow on SSD Wed Nov 30, 2016 10:33 am Hi all, My system is : Gentoo + KDE Plasma 5.8.4 Processor i7 3.2GHz - 8Go RAM - SSD Disk OCZ Vertex 4 Since I am on Plasma 5.x, after login on SDDM, Plasma needs 30 seconds to load. I am with a SSD disk !!!! And after loading, Plasma isn't always loaded correctly. For example, impossible to open MTP devices, Sound applet not shown (and multimedia function doesn't work). I must logout and login, to hope KDE Plasma load sucessfully... I didn't have this problems with KDE4. I tried reinstall from scratch my distro, and try an other distro (on the same laptop, on an other partition) but problem (slowness) is the same (Fedora and Mageia). How can I optimize KDE Plasma ? On the same computer, I tried Cinnamon. Uptime 7seconds (after manual login). For KDE, 32seconds. Can you help me ?
Rog131 Registered Member Posts 828 Karma 10	Re: KDE Plasma 5.8 ... slow slow slow on SSD Wed Nov 30, 2016 6:44 pm There was, with the plasma 5.4, problems with the bluetooth: Bug 354230 - Blocking calls from PlasmaNM to BlueZ for 30s - https://bugs.kde.org/show_bug.cgi?id=354230 If you look the logs, any error/warning messages or stuck processes ? At here, from the greeter login message to the konsole up and running (1), about 12 sec: Code: Select all `Nov 30 20:07:16 archfox sddm[385]: Message received from greeter: Login . . . Nov 30 20:07:28 archfox cat[4448]: Stop Here !` The plasma devel mailing list has a thread: plugins,caches, startup time - https://mail.kde.org/pipermail/plasma-d ... 59998.html At here, the plugin caching shaves only about 1 sec off. (1) Timing done with: Plasma start time from the systemd journal - searching with: 'Message received from greeter: Login' Plasma up and running: Starting a Konsole window and running a command: Code: Select all `printf "Stop Here !" \| systemd-cat` and reading the time from the systemd journal - searching with: ' Stop Here !'
adriend Registered Member Posts 12 Karma 0 OS	Re: KDE Plasma 5.8 ... slow slow slow on SSD Wed Nov 30, 2016 8:29 pm Hi, For sddm.log : Code: Select all [08:08:41.987] (WW) DAEMON: QProcess: Destroyed while process ("/usr/libexec/sddm-helper") is still running. [18:39:21.846] (II) DAEMON: Initializing... [18:39:21.851] (II) DAEMON: Starting... [18:39:21.851] (II) DAEMON: Adding new display on vt 7 ... [18:39:21.854] (II) DAEMON: Display server starting... [18:39:21.854] (II) DAEMON: Running: /usr/bin/X -nolisten tcp -auth /var/run/sddm/{21c8dfaa-1834-4e9e-9bec-e163e2b2ce2f} -background none -noreset -displayfd 18 vt7 [18:39:22.240] (II) DAEMON: Running display setup script "/usr/share/sddm/scripts/Xsetup" [18:39:22.243] (II) DAEMON: Display server started. [18:39:22.243] (II) DAEMON: Socket server starting... [18:39:22.243] (II) DAEMON: Socket server started. [18:39:22.245] (II) DAEMON: Greeter starting... [18:39:22.246] (II) DAEMON: Adding cookie to "/var/run/sddm/{21c8dfaa-1834-4e9e-9bec-e163e2b2ce2f}" [18:39:22.254] (II) HELPER: [PAM] Starting... [18:39:22.254] (II) HELPER: [PAM] Authenticating... [18:39:22.254] (II) HELPER: [PAM] returning. [18:39:22.258] (II) DAEMON: Greeter session started successfully [18:39:22.334] (II) DAEMON: Message received from greeter: Connect [18:39:30.271] (II) DAEMON: Message received from greeter: Login [18:39:30.271] (II) DAEMON: Reading from "/usr/share/xsessions/plasma.desktop" [18:39:30.271] (II) DAEMON: Reading from "/usr/share/xsessions/plasma.desktop" [18:39:30.271] (II) DAEMON: Session "/usr/share/xsessions/plasma.desktop" selected, command: "/usr/bin/startkde" [18:39:30.292] (II) HELPER: [PAM] Starting... [18:39:30.292] (II) HELPER: [PAM] Authenticating... [18:39:30.293] (II) HELPER: [PAM] Preparing to converse... [18:39:30.293] (II) HELPER: [PAM] Conversation with 1 messages [18:39:32.308] (WW) HELPER: [PAM] authenticate: Authentication failure [18:39:32.309] (II) HELPER: [PAM] returning. [18:39:32.309] (WW) DAEMON: Authentication error: "Authentication failure" [18:39:32.310] (II) HELPER: [PAM] Ended. [18:39:32.313] (WW) DAEMON: Auth: sddm-helper exited with 1 [18:39:40.471] (II) DAEMON: Message received from greeter: Login [18:39:40.471] (II) DAEMON: Reading from "/usr/share/xsessions/plasma.desktop" [18:39:40.471] (II) DAEMON: Reading from "/usr/share/xsessions/plasma.desktop" [18:39:40.471] (II) DAEMON: Session "/usr/share/xsessions/plasma.desktop" selected, command: "/usr/bin/startkde" [18:39:40.485] (II) HELPER: [PAM] Starting... [18:39:40.485] (II) HELPER: [PAM] Authenticating... [18:39:40.485] (II) HELPER: [PAM] Preparing to converse... [18:39:40.485] (II) HELPER: [PAM] Conversation with 1 messages [18:39:40.664] (II) HELPER: [PAM] returning. [18:39:40.664] (II) DAEMON: Authenticated successfully [18:39:40.665] (II) DAEMON: Authenticated successfully [18:39:40.686] (II) HELPER: [PAM] Closing session [18:39:40.687] (II) HELPER: [PAM] Ended. [18:39:40.687] (II) DAEMON: Auth: sddm-helper exited successfully [18:39:40.687] (II) DAEMON: Greeter stopped. [18:39:40.979] (II) HELPER: Starting: "/usr/share/sddm/scripts/Xsession /usr/bin/startkde" [18:39:40.983] (II) HELPER: Adding cookie to "/home/adrien/.Xauthority" [18:39:40.991] (II) DAEMON: Session started 8 [21:23:46] root@superlinux: /var/log # I try to set to 3 vm.drop_caches Bluetooth disabled for me
Rog131 Registered Member Posts 828 Karma 10	Re: KDE Plasma 5.8 ... slow slow slow on SSD Fri Dec 02, 2016 9:28 am I would check the systemd journal: https://www.digitalocean.com/community/ ... stemd-logs ...that is if you are using the systemd. There are few bug reports of the slow plasma start: - Bug 360777 - Due to faulty configuration desktop loading time is ~20 seconds longer: https://bugs.kde.org/show_bug.cgi?id=360777 - Bug 359611 - Plasmashell loads itself incompletely and with long delays: https://bugs.kde.org/show_bug.cgi?id=359611 I would start the debugging with a minimalistic plasma desktop. Just the wallpaper and an empty panel. Is the startup slow with the empty plasma desktop ? If the mini plasma desktop doesn't have problems then I would add the widgets one by one and check the startup after each widget.
adriend Registered Member Posts 12 Karma 0 OS	Re: KDE Plasma 5.8 ... slow slow slow on SSD Fri Dec 02, 2016 9:58 am Hi, I don't use systemd, so i can't check systemd logs I am at work now. I will test that later, and ask you the answer.
adriend Registered Member Posts 12 Karma 0 OS	Re: KDE Plasma 5.8 ... slow slow slow on SSD Sat Dec 03, 2016 11:41 am Hi, I created a new user on my system "test". First login = 27seconds. Logout, and Login on test user : 7seconds. Logout and Login on "adrien" user : 7seconds too. I think there are some files cached at first KDE launch, and it takes time !
Rog131 Registered Member Posts 828 Karma 10	Re: KDE Plasma 5.8 ... slow slow slow on SSD Wed Dec 07, 2016 9:38 am Same kind of: viewtopic.php?f=289&t=137511 Maybe you could cooperate ? If there is a common cause why the startup is slowing down.