[Pkg-owncloud-maintainers] Bug#926310: nextcloud-desktop: High CPU Usage for several minutes when sync

[Raphael Plasson]

Package: nextcloud-desktop
Version: 2.5.1-2
Severity: normal

Dear Maintainer,

I switched from the owncloud to the nextcloud client, for synchronizing my data with a private nextcloud server (v15.0.5). While the syncronization with the owncloud client goes smoothly and is almost instantaneous, it takes several minutes with one cpu used at 100%, with a freeze of the nextcloud window until completion. This happens at the first syncronization when connecting, but at each event (I tried to just add a simple and short textfile on the cloud, the nextclooud app freezes for several minutes just for adding it when it is detected on the server). Please note that I have several GB of data syncronized, if this problem can be related to my case. The syncronization, as I said before, goes smoothly with the debian owncloud client, but also with the old nextcloud client v2.3.3 from http://ppa.launchpad.net/nextcloud-devs/client/ubuntu. As such, the 2.5.1 version of nextcloud client is practically barely usable.

Thank you,
Raphaël



-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.19.0-4-amd64 (SMP w/24 CPU cores)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages nextcloud-desktop depends on:
ii  libc6                     2.28-8
ii  libgcc1                   1:8.3.0-4
ii  libnextcloudsync0         2.5.1-2
ii  libqt5concurrent5         5.11.3+dfsg1-1
ii  libqt5core5a              5.11.3+dfsg1-1
ii  libqt5dbus5               5.11.3+dfsg1-1
ii  libqt5gui5                5.11.3+dfsg1-1
ii  libqt5keychain1           0.9.1-2
ii  libqt5network5            5.11.3+dfsg1-1
ii  libqt5positioning5        5.11.3+dfsg-2
ii  libqt5printsupport5       5.11.3+dfsg1-1
ii  libqt5qml5                5.11.3-4
ii  libqt5quick5              5.11.3-4
ii  libqt5sql5-sqlite         5.11.3+dfsg1-1
ii  libqt5webchannel5         5.11.3-2
ii  libqt5webenginecore5      5.11.3+dfsg-2+b1
ii  libqt5webenginewidgets5   5.11.3+dfsg-2+b1
ii  libqt5webkit5             5.212.0~alpha2-21
ii  libqt5widgets5            5.11.3+dfsg1-1
ii  libqt5xml5                5.11.3+dfsg1-1
ii  libsqlite3-0              3.27.2-2
ii  libssl1.1                 1.1.1b-1
ii  libstdc++6                8.3.0-4
ii  nextcloud-desktop-common  2.5.1-2
ii  nextcloud-desktop-l10n    2.5.1-2
ii  zlib1g                    1:1.2.11.dfsg-1

Versions of packages nextcloud-desktop recommends:
pn  nextcloud-desktop-doc  <none>

nextcloud-desktop suggests no packages.

-- no debconf information