Nixpkgs: konsole is slow to start, stats too many icons

Created on 29 Aug 2019 · 8Comments · Source: NixOS/nixpkgs

Describe the bug

konsole is slow to start because it tries to stat ~120K icon files. For some icons, it tries to stat every icon size in every theme.

To Reproduce
Steps to reproduce the behavior:

Run NixOS master with services.xserver.desktopManager.xfce4-14.enable = true;
Run konsole and observe 1 second startup; strace to see way too many stats

I did not test plasma to see if it reproduces there.

Additional context

NixOS master

$ /run/current-system/sw/bin/konsole --version
konsole 19.04.1

$ strace /run/current-system/sw/bin/konsole 2>&1 | grep /share/icons/ | wc -l
120065

Startup time is ~1s

I also built konsole 18.08.1 (with dependencies left unchanged) and it had the same problem, so it is not a recent regression in konsole itself.

Ubuntu 19.04

$ strace konsole 2>&1 | grep /share/icons/ | wc -l
968

Startup time is ~250ms

Metadata

system: "x86_64-linux"
host os: Linux 4.19.68-hardened, NixOS, 19.09.git.2610a7b (Loris)
multi-user?: yes
sandbox: yes
version: nix-env (Nix) 2.2.2
channels(root): "nixos-18.09.1922.97e0d53d669"
channels(at): ""
nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixos

Maintainer information:

# a list of nixpkgs attributes affected by the problem
attribute:
# a list of nixos modules affected by the problem
module:

cc maintainer @ttuegel

bug blocker qkde

Source

ivan

Most helpful comment

I think what we need is the capability in makeWrapper and similar to add to a list-type variable only if the value is not already inside.

ambrop72 on 9 Sep 2019

👍2

All 8 comments

This could be from XDG_DATA_DIRS or XCURSOR_PATH values? Maybe try messing with those to see if it changes things. My values on KDE are smaller though:

$ strace konsole 2>&1 | grep /share/icons/ | wc -l
1896

matthewbauer on 29 Aug 2019

my XCURSOR_PATH looks small and reasonable, but XDG_DATA_DIRS is large:

XDG_DATA_DIRS=/nix/store/3snj4802y1h7hi4asqgdgkd5mhnyxjl8-konsole-19.04.1/share:
/nix/store/6zqkwqqrly2ad2v7pivy82s7ams3ykwg-knewstuff-5.58.0/share:
/nix/store/mx2fir1j9ycl2qvbjn58vdzlhhsk6g34-kpty-5.58.0/share:
/nix/store/ash4mz25d8xma4q0422b0rir7kz2fl5s-knotifyconfig-5.58.0/share:
/nix/store/mjvfhv0ffv5fwb1csgzrfas57m808fs1-kdelibs4support-5.58.0/share:
/nix/store/y35v7nyls21sax25qp055v3x0s7fi6p8-kded-5.58.0/share:
/nix/store/d1f0jzjb70g9jpf1f4292r361hqk93ij-kunitconversion-5.58.0/share:
/nix/store/k0rdy8bshzi5y69chi5sgkzr91ipb23n-kparts-5.58.0/share:
/nix/store/668ipix6kdzs3qx3d6kl8klacbn6bnpz-kparts-5.58.0-bin/share:
/nix/store/6iy3n4lks367xcbqjp5vfxjnfk84546f-kinit-5.58.0/share:
/nix/store/7b5g2dpk8s5gsm4xlrsln0sj92p7x3qc-kemoticons-5.58.0-bin/share:
/nix/store/bf10f4j9f4ba37kwgq60fw22cvcb2hgj-kdesignerplugin-5.58.0/share:
/nix/store/j9n8r138qw9a4pxkjbj63shfb23w6l04-kio-5.58.0/share:
/nix/store/bd7fndbdh6dj5c7jy32g27l8ramybnzl-kwallet-5.58.0/share:
/nix/store/xl6qcg1pkfpl4j9lw2g2h04w7hlg3dya-kwallet-5.58.0-bin/share:
/nix/store/6sm4wsm3bk94xbg8gh9k6rfdb9ppphv7-knotifications-5.58.0/share:
/nix/store/5nampsblpflij5lrc61p4ai9kg507g47-knotifications-5.58.0-bin/share:
/nix/store/jwspwwz8080y7x543wsqh4d6w9qz2a10-solid-5.58.0/share:
/nix/store/ny7l1cvx3hdjlp40c3mzx42fq3xx2c36-kjobwidgets-5.58.0/share:
/nix/store/xq5s47p6fiqirza0l499a0bqdqpy643k-kjobwidgets-5.58.0-bin/share:
/nix/store/mzlh1bg8385bknn3ad5cnv1k9cf6nmyd-kio-5.58.0-bin/share:
/nix/store/kjdn5yds6dys24b0gxy8vf6d4p8pmxaz-phonon-qt5-4.10.2/share:
/nix/store/j09ydniwk35haph0cjb76jys4as4mlcc-kbookmarks-5.58.0/share:
/nix/store/qbajl24idfh820kxdqfnnb64z7dv1xhy-kxmlgui-5.58.0/share:
/nix/store/y7xmg8ni6p6ra270r4fn4b4q5w444hnp-ktextwidgets-5.58.0/share:
/nix/store/60q2f18ysf2v35gs278qq7ndnr4syy3p-ktextwidgets-5.58.0-bin/share:
/nix/store/3n3ybqvpz8ip377sfm7c90znv64vpqs1-kcompletion-5.58.0/share:
/nix/store/0cr32rk9rsklr4i59g2xhk3pzy86f9fy-sonnet-5.58.0/share:
/nix/store/dlxvyn38bpdjylk5c661i5kfiymdnk1p-kglobalaccel-5.58.0/share:
/nix/store/acbinf6w0wpwqj7h1vg5pj6hskjc8fzl-kservice-5.58.0/share:
/nix/store/sx9m06z4k9xhx7a9bixn8zfd0sr80xpl-kservice-5.58.0-bin/share:
/nix/store/mf956gj5985nviy1vkc2hh6swnjwjmvh-kdbusaddons-5.58.0/share:
/nix/store/c4xj4i0c0p5i1w1049n9xdfmqwr88pbk-kiconthemes-5.58.0/share:
/nix/store/f7yqxyzib19i3npy5zliv9r2w8qwi3g6-kitemviews-5.58.0/share:
/nix/store/qng41d9bh1rzx8mxxrk7a1yl7mhyg35d-kconfigwidgets-5.58.0/share:
/nix/store/gbz9flv5lwx0db0ajqaswz261pzpjm14-kcoreaddons-5.58.0/share:
/nix/store/j6szdnvkba86nyv4bllz48glvp2kah2s-kcoreaddons-5.58.0-bin/share:
/nix/store/48nwvvvd2ixjkhv77sl1jgap61qs66az-kconfig-5.58.0/share:
/nix/store/cha47w7pq68g6g08m9ka01jix518ylnw-kcodecs-5.58.0/share:
/nix/store/bc3imc75var3g99wpn30brzk0pgdvk3q-kglobalaccel-5.58.0-bin/share:
/nix/store/xgnlxs20pyj0m15jdzqcnjs0dzydmcq2-kwindowsystem-5.58.0/share:
/nix/store/7n6ywg47jxx45yprai36p2sbs6favhj7-kauth-5.58.0/share:
/nix/store/69vcnsqm9wl1qb27493rrvybhjmxhm66-kwidgetsaddons-5.58.0/share:
/nix/store/f9f5c3x08xy92x5zh2fqi5m7gv0309a4-patchelf-0.9/share:
/nix/store/1hsfp26nld0qsn3rj5b08nz28m5nby0f-flex-2.6.4/share:
/nix/store/g2f25j76c1fk3rfgi47pcmr44lmwpprp-bison-3.4.1/share:
/nix/store/f66n8plr4albh1wy7wwna4x91y0hwsbh-kdoctools-5.58.0/share:
/nix/store/j23hkszsnkrh34cvy1j08g0s5hzkdbc2-ki18n-5.58.0/share:
/nix/store/z1fmvm5wmhsy7d52h8bknnzsx1cgq2iw-qtbase-5.12.0/share:
/nix/store/my5a5a07x9p5lhvc2n3ki6l20dfz38zh-systemd-242/share:
/nix/store/qj5mxxzcwksccq69zlq9n49d8j4nvpj4-systemd-242-lib/share:
/nix/store/f9skp1y3jr0658b2vgnnj3ginvj71x9p-glib-2.60.4/share:
/nix/store/3njdywpyqns813nc5f2padax9vsdvyl5-gettext-0.19.8.1/share:
/nix/store/5x82ydyjnbcvdw4fpwx7170qfbf2i4x5-dbus-1.12.16/share:
/nix/store/1nrimml11nlg7spkrq0ki1337cjc4222-expat-2.2.7/share:
/nix/store/ji9kpgmbddkv2l2szzjfqinhja2322k0-xz-5.2.4/share:
/nix/store/hrb88p3rriaqzwcpc7asgfbky0smdsds-kdoctools-5.58.0-dev/share:
/nix/store/vjznmqrvwiawqy7g2ip6jsycyls0zlfz-pkg-config-0.29.2/share:
/nix/store/c8waarcjyhgq8ripcrcnc5xqq792zd9c-cmake-3.14.5/share:
/nix/store/3snj4802y1h7hi4asqgdgkd5mhnyxjl8-konsole-19.04.1/share:
/nix/store/3snj4802y1h7hi4asqgdgkd5mhnyxjl8-konsole-19.04.1/share:
/nix/store/6zqkwqqrly2ad2v7pivy82s7ams3ykwg-knewstuff-5.58.0/share:
/nix/store/mx2fir1j9ycl2qvbjn58vdzlhhsk6g34-kpty-5.58.0/share:
/nix/store/ash4mz25d8xma4q0422b0rir7kz2fl5s-knotifyconfig-5.58.0/share:
/nix/store/mjvfhv0ffv5fwb1csgzrfas57m808fs1-kdelibs4support-5.58.0/share:
/nix/store/y35v7nyls21sax25qp055v3x0s7fi6p8-kded-5.58.0/share:
/nix/store/d1f0jzjb70g9jpf1f4292r361hqk93ij-kunitconversion-5.58.0/share:
/nix/store/k0rdy8bshzi5y69chi5sgkzr91ipb23n-kparts-5.58.0/share:
/nix/store/668ipix6kdzs3qx3d6kl8klacbn6bnpz-kparts-5.58.0-bin/share:
/nix/store/6iy3n4lks367xcbqjp5vfxjnfk84546f-kinit-5.58.0/share:
/nix/store/7b5g2dpk8s5gsm4xlrsln0sj92p7x3qc-kemoticons-5.58.0-bin/share:
/nix/store/bf10f4j9f4ba37kwgq60fw22cvcb2hgj-kdesignerplugin-5.58.0/share:
/nix/store/j9n8r138qw9a4pxkjbj63shfb23w6l04-kio-5.58.0/share:
/nix/store/bd7fndbdh6dj5c7jy32g27l8ramybnzl-kwallet-5.58.0/share:
/nix/store/xl6qcg1pkfpl4j9lw2g2h04w7hlg3dya-kwallet-5.58.0-bin/share:
/nix/store/6sm4wsm3bk94xbg8gh9k6rfdb9ppphv7-knotifications-5.58.0/share:
/nix/store/5nampsblpflij5lrc61p4ai9kg507g47-knotifications-5.58.0-bin/share:
/nix/store/jwspwwz8080y7x543wsqh4d6w9qz2a10-solid-5.58.0/share:
/nix/store/ny7l1cvx3hdjlp40c3mzx42fq3xx2c36-kjobwidgets-5.58.0/share:
/nix/store/xq5s47p6fiqirza0l499a0bqdqpy643k-kjobwidgets-5.58.0-bin/share:
/nix/store/mzlh1bg8385bknn3ad5cnv1k9cf6nmyd-kio-5.58.0-bin/share:
/nix/store/kjdn5yds6dys24b0gxy8vf6d4p8pmxaz-phonon-qt5-4.10.2/share:
/nix/store/j09ydniwk35haph0cjb76jys4as4mlcc-kbookmarks-5.58.0/share:
/nix/store/qbajl24idfh820kxdqfnnb64z7dv1xhy-kxmlgui-5.58.0/share:
/nix/store/y7xmg8ni6p6ra270r4fn4b4q5w444hnp-ktextwidgets-5.58.0/share:
/nix/store/60q2f18ysf2v35gs278qq7ndnr4syy3p-ktextwidgets-5.58.0-bin/share:
/nix/store/3n3ybqvpz8ip377sfm7c90znv64vpqs1-kcompletion-5.58.0/share:
/nix/store/0cr32rk9rsklr4i59g2xhk3pzy86f9fy-sonnet-5.58.0/share:
/nix/store/dlxvyn38bpdjylk5c661i5kfiymdnk1p-kglobalaccel-5.58.0/share:
/nix/store/acbinf6w0wpwqj7h1vg5pj6hskjc8fzl-kservice-5.58.0/share:
/nix/store/sx9m06z4k9xhx7a9bixn8zfd0sr80xpl-kservice-5.58.0-bin/share:
/nix/store/mf956gj5985nviy1vkc2hh6swnjwjmvh-kdbusaddons-5.58.0/share:
/nix/store/c4xj4i0c0p5i1w1049n9xdfmqwr88pbk-kiconthemes-5.58.0/share:
/nix/store/f7yqxyzib19i3npy5zliv9r2w8qwi3g6-kitemviews-5.58.0/share:
/nix/store/qng41d9bh1rzx8mxxrk7a1yl7mhyg35d-kconfigwidgets-5.58.0/share:
/nix/store/gbz9flv5lwx0db0ajqaswz261pzpjm14-kcoreaddons-5.58.0/share:
/nix/store/j6szdnvkba86nyv4bllz48glvp2kah2s-kcoreaddons-5.58.0-bin/share:
/nix/store/48nwvvvd2ixjkhv77sl1jgap61qs66az-kconfig-5.58.0/share:
/nix/store/cha47w7pq68g6g08m9ka01jix518ylnw-kcodecs-5.58.0/share:
/nix/store/bc3imc75var3g99wpn30brzk0pgdvk3q-kglobalaccel-5.58.0-bin/share:
/nix/store/xgnlxs20pyj0m15jdzqcnjs0dzydmcq2-kwindowsystem-5.58.0/share:
/nix/store/7n6ywg47jxx45yprai36p2sbs6favhj7-kauth-5.58.0/share:
/nix/store/69vcnsqm9wl1qb27493rrvybhjmxhm66-kwidgetsaddons-5.58.0/share:
/nix/store/f9f5c3x08xy92x5zh2fqi5m7gv0309a4-patchelf-0.9/share:
/nix/store/1hsfp26nld0qsn3rj5b08nz28m5nby0f-flex-2.6.4/share:
/nix/store/g2f25j76c1fk3rfgi47pcmr44lmwpprp-bison-3.4.1/share:
/nix/store/f66n8plr4albh1wy7wwna4x91y0hwsbh-kdoctools-5.58.0/share:
/nix/store/j23hkszsnkrh34cvy1j08g0s5hzkdbc2-ki18n-5.58.0/share:
/nix/store/z1fmvm5wmhsy7d52h8bknnzsx1cgq2iw-qtbase-5.12.0/share:
/nix/store/my5a5a07x9p5lhvc2n3ki6l20dfz38zh-systemd-242/share:
/nix/store/qj5mxxzcwksccq69zlq9n49d8j4nvpj4-systemd-242-lib/share:
/nix/store/f9skp1y3jr0658b2vgnnj3ginvj71x9p-glib-2.60.4/share:
/nix/store/3njdywpyqns813nc5f2padax9vsdvyl5-gettext-0.19.8.1/share:
/nix/store/5x82ydyjnbcvdw4fpwx7170qfbf2i4x5-dbus-1.12.16/share:
/nix/store/1nrimml11nlg7spkrq0ki1337cjc4222-expat-2.2.7/share:
/nix/store/ji9kpgmbddkv2l2szzjfqinhja2322k0-xz-5.2.4/share:
/nix/store/hrb88p3rriaqzwcpc7asgfbky0smdsds-kdoctools-5.58.0-dev/share:
/nix/store/vjznmqrvwiawqy7g2ip6jsycyls0zlfz-pkg-config-0.29.2/share:
/nix/store/c8waarcjyhgq8ripcrcnc5xqq792zd9c-cmake-3.14.5/share:
/nix/store/3snj4802y1h7hi4asqgdgkd5mhnyxjl8-konsole-19.04.1/share:
/nix/store/4l7yjlsj5dgcqnaynrfz344h5mllilhm-xfce4-session-4.14.0/share:
/nix/store/zhzgdnnaf34imjw6cf057fjdvl8nnfa6-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10:
/nix/store/vjayily6sjggjj1qdqmg9713rvpl5wvz-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0:
/nix/store/zhzgdnnaf34imjw6cf057fjdvl8nnfa6-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10:
/nix/store/vjayily6sjggjj1qdqmg9713rvpl5wvz-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0:
/nix/store/zhzgdnnaf34imjw6cf057fjdvl8nnfa6-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10:
/nix/store/vjayily6sjggjj1qdqmg9713rvpl5wvz-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0:
/nix/store/zhzgdnnaf34imjw6cf057fjdvl8nnfa6-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10:
/nix/store/vjayily6sjggjj1qdqmg9713rvpl5wvz-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0:
/nix/store/zhzgdnnaf34imjw6cf057fjdvl8nnfa6-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10:
/nix/store/vjayily6sjggjj1qdqmg9713rvpl5wvz-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0:
/nix/store/zhzgdnnaf34imjw6cf057fjdvl8nnfa6-gtk+3-3.24.10/share:
/nix/store/j1lc5ir64fbrpdhximk2dmi7aykgj92g-hicolor-icon-theme-0.17/share:
/nix/store/ra2ay87kzj07siwvg1lsd4f5azm261ki-exo-0.12.8/share:
/nix/store/adsvkw3891a37nk7xqg2gwfqjlfsb0zr-cups-2.2.11/share:
/nix/store/2vmr74j60jk7dyi53pfihk3ghfd1kz2z-libxfce4ui-4.14.1/share:
/nix/store/zhzgdnnaf34imjw6cf057fjdvl8nnfa6-gtk+3-3.24.10/share:
/nix/store/j1lc5ir64fbrpdhximk2dmi7aykgj92g-hicolor-icon-theme-0.17/share:
/nix/store/ra2ay87kzj07siwvg1lsd4f5azm261ki-exo-0.12.8/share:
/nix/store/adsvkw3891a37nk7xqg2gwfqjlfsb0zr-cups-2.2.11/share:
/nix/store/2vmr74j60jk7dyi53pfihk3ghfd1kz2z-libxfce4ui-4.14.1/share:
/nix/store/4l7yjlsj5dgcqnaynrfz344h5mllilhm-xfce4-session-4.14.0/share:
/nix/store/zhzgdnnaf34imjw6cf057fjdvl8nnfa6-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10:
/nix/store/vjayily6sjggjj1qdqmg9713rvpl5wvz-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0:
/nix/store/zhzgdnnaf34imjw6cf057fjdvl8nnfa6-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10:
/nix/store/vjayily6sjggjj1qdqmg9713rvpl5wvz-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0:
/nix/store/zhzgdnnaf34imjw6cf057fjdvl8nnfa6-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10:
/nix/store/vjayily6sjggjj1qdqmg9713rvpl5wvz-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0:
/nix/store/zhzgdnnaf34imjw6cf057fjdvl8nnfa6-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10:
/nix/store/vjayily6sjggjj1qdqmg9713rvpl5wvz-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0:
/nix/store/zhzgdnnaf34imjw6cf057fjdvl8nnfa6-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10:
/nix/store/vjayily6sjggjj1qdqmg9713rvpl5wvz-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0:
/nix/store/zhzgdnnaf34imjw6cf057fjdvl8nnfa6-gtk+3-3.24.10/share:
/nix/store/j1lc5ir64fbrpdhximk2dmi7aykgj92g-hicolor-icon-theme-0.17/share:
/nix/store/ra2ay87kzj07siwvg1lsd4f5azm261ki-exo-0.12.8/share:
/nix/store/adsvkw3891a37nk7xqg2gwfqjlfsb0zr-cups-2.2.11/share:
/nix/store/2vmr74j60jk7dyi53pfihk3ghfd1kz2z-libxfce4ui-4.14.1/share:
/nix/store/zhzgdnnaf34imjw6cf057fjdvl8nnfa6-gtk+3-3.24.10/share:
/nix/store/j1lc5ir64fbrpdhximk2dmi7aykgj92g-hicolor-icon-theme-0.17/share:
/nix/store/ra2ay87kzj07siwvg1lsd4f5azm261ki-exo-0.12.8/share:
/nix/store/adsvkw3891a37nk7xqg2gwfqjlfsb0zr-cups-2.2.11/share:
/nix/store/2vmr74j60jk7dyi53pfihk3ghfd1kz2z-libxfce4ui-4.14.1/share:
/home/at/.nix-profile/share:
/etc/profiles/per-user/at/share:
/nix/var/nix/profiles/default/share:
/run/current-system/sw/share:
/nix/store/zhzgdnnaf34imjw6cf057fjdvl8nnfa6-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10:
/nix/store/zhzgdnnaf34imjw6cf057fjdvl8nnfa6-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10

Setting it to "" shaves off 250ms on my fast computer:

# time /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'
/run/current-system/sw/bin/konsole -e 'zsh -is eval exit'  0.34s user 0.30s system 97% cpu 0.663 total

# time /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'
/run/current-system/sw/bin/konsole -e 'zsh -is eval exit'  0.32s user 0.32s system 97% cpu 0.653 total

# time XDG_DATA_DIRS="" /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'
XDG_DATA_DIRS="" /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'  0.30s user 0.08s system 95% cpu 0.396 total

# time XDG_DATA_DIRS="" /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'
XDG_DATA_DIRS="" /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'  0.32s user 0.08s system 97% cpu 0.408 total

and 500-1000ms on my slower computer:

# time /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'
/run/current-system/sw/bin/konsole -e 'zsh -is eval exit'  0.84s user 0.78s system 89% cpu 1.811 total

# time /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'
/run/current-system/sw/bin/konsole -e 'zsh -is eval exit'  0.87s user 0.92s system 76% cpu 2.332 total

# time /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'
/run/current-system/sw/bin/konsole -e 'zsh -is eval exit'  0.74s user 0.66s system 86% cpu 1.620 total

# time /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'
/run/current-system/sw/bin/konsole -e 'zsh -is eval exit'  0.63s user 0.60s system 99% cpu 1.227 total

# time /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'
/run/current-system/sw/bin/konsole -e 'zsh -is eval exit'  0.63s user 0.60s system 98% cpu 1.254 total

# time /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'
/run/current-system/sw/bin/konsole -e 'zsh -is eval exit'  0.76s user 0.74s system 78% cpu 1.923 total

# time XDG_DATA_DIRS="" /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'
XDG_DATA_DIRS="" /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'  0.57s user 0.14s system 100% cpu 0.718 total

# time XDG_DATA_DIRS="" /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'
XDG_DATA_DIRS="" /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'  0.58s user 0.17s system 100% cpu 0.737 total

# time XDG_DATA_DIRS="" /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'
XDG_DATA_DIRS="" /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'  0.64s user 0.15s system 95% cpu 0.823 total

# time XDG_DATA_DIRS="" /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'
XDG_DATA_DIRS="" /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'  0.57s user 0.14s system 98% cpu 0.720 total

# time XDG_DATA_DIRS="" /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'
XDG_DATA_DIRS="" /run/current-system/sw/bin/konsole -e 'zsh -is eval exit'  0.56s user 0.17s system 98% cpu 0.737 total

ivan on 29 Aug 2019

I suspect this is fallout from https://github.com/NixOS/nixpkgs/pull/54525.

matthewbauer on 29 Aug 2019

I notice two separate bugs:

There are some build dependencies in XDG_DATA_DIRS.
About half the entries in XDG_DATA_DIRS are redundant; there should not be XDG data in both the $out and $bin output, yet we are searching both.

ttuegel on 31 Aug 2019

👍1

I think what we need is the capability in makeWrapper and similar to add to a list-type variable only if the value is not already inside.

ambrop72 on 9 Sep 2019

👍2

I believe this is fixed by #69426/#69427. Feel free to reopen or let me know if I'm mistaken.

lheckemann on 5 Oct 2019

I cannot reopen, but this is not fixed in xfce4 on release-19.09 (I cannot test master right now, sorry):

# strace /run/current-system/sw/bin/konsole 2>&1 | grep /share/icons/ | wc -l
172132

# echo $XDG_DATA_DIRS | tr ':' '\n' | sort
/etc/profiles/per-user/at/share
/home/at/.nix-profile/share
/nix/store/0h13ga9gn5hvnaspvbymq4jzzinhnw5j-systemd-243-lib/share
/nix/store/0h13ga9gn5hvnaspvbymq4jzzinhnw5j-systemd-243-lib/share
/nix/store/0k8zd1rhbq8kphshhi5g3j6vhkd0s69l-kded-5.61.0/share
/nix/store/0k8zd1rhbq8kphshhi5g3j6vhkd0s69l-kded-5.61.0/share
/nix/store/0v1lym92nnxdcp1bl7l3f5q8h2ixq1gb-kservice-5.61.0-bin/share
/nix/store/0v1lym92nnxdcp1bl7l3f5q8h2ixq1gb-kservice-5.61.0-bin/share
/nix/store/26qn545ypqgn4jc90y0i1r08zfcfy8by-kauth-5.61.0/share
/nix/store/26qn545ypqgn4jc90y0i1r08zfcfy8by-kauth-5.61.0/share
/nix/store/2q2fy7f468ba54kcxz7z6rpmcyz5yanm-konsole-19.08.1/share
/nix/store/2q2fy7f468ba54kcxz7z6rpmcyz5yanm-konsole-19.08.1/share
/nix/store/3vjnl852s4mfnqd8p8v237h1v34yhjip-knotifyconfig-5.61.0/share
/nix/store/3vjnl852s4mfnqd8p8v237h1v34yhjip-knotifyconfig-5.61.0/share
/nix/store/446a4zdrfb2q747gv46lp4x239ih3wdk-kemoticons-5.61.0-bin/share
/nix/store/446a4zdrfb2q747gv46lp4x239ih3wdk-kemoticons-5.61.0-bin/share
/nix/store/4bjb8fimyh6zd6rnvkyq6msmwgflzprb-ktextwidgets-5.61.0-bin/share
/nix/store/4bjb8fimyh6zd6rnvkyq6msmwgflzprb-ktextwidgets-5.61.0-bin/share
/nix/store/4k9d6aa8p2ysaqyjw2nn6cik0sbzza4n-kio-5.61.0-bin/share
/nix/store/4k9d6aa8p2ysaqyjw2nn6cik0sbzza4n-kio-5.61.0-bin/share
/nix/store/4ncg66a8zcf4qry4g0i64jk9gshg9wjc-dbus-1.12.16/share
/nix/store/4ncg66a8zcf4qry4g0i64jk9gshg9wjc-dbus-1.12.16/share
/nix/store/4p492m7f9nwjl3hzfaz2xsw99pj527zr-knotifications-5.61.0/share
/nix/store/4p492m7f9nwjl3hzfaz2xsw99pj527zr-knotifications-5.61.0/share
/nix/store/6p2r0iri6gk0ncm2hkrrgz9v7qhywg13-kjobwidgets-5.61.0/share
/nix/store/6p2r0iri6gk0ncm2hkrrgz9v7qhywg13-kjobwidgets-5.61.0/share
/nix/store/6xcj6sdcaky9hgkf7q476kai6wpaikvc-kparts-5.61.0/share
/nix/store/6xcj6sdcaky9hgkf7q476kai6wpaikvc-kparts-5.61.0/share
/nix/store/796nbbv45dnsqya3wghwndhxc3v518lv-ktextwidgets-5.61.0/share
/nix/store/796nbbv45dnsqya3wghwndhxc3v518lv-ktextwidgets-5.61.0/share
/nix/store/7cgi0x10p4bnm0yjslsm19xicbd4myx3-ki18n-5.61.0/share
/nix/store/7cgi0x10p4bnm0yjslsm19xicbd4myx3-ki18n-5.61.0/share
/nix/store/7dmdf5j7g64rdvdjajcvv3n10m05lja5-kinit-5.61.0/share
/nix/store/7dmdf5j7g64rdvdjajcvv3n10m05lja5-kinit-5.61.0/share
/nix/store/7vcc3xnk78a75mnfs88cgmwj99sxfxcr-kbookmarks-5.61.0/share
/nix/store/7vcc3xnk78a75mnfs88cgmwj99sxfxcr-kbookmarks-5.61.0/share
/nix/store/85di97vaqxmr0k7mvqyj3q41yd1wbpn5-kconfig-5.61.0/share
/nix/store/85di97vaqxmr0k7mvqyj3q41yd1wbpn5-kconfig-5.61.0/share
/nix/store/8s453hn8683q77ylqgyfa3xsah90lagw-cups-2.2.12/share
/nix/store/8s453hn8683q77ylqgyfa3xsah90lagw-cups-2.2.12/share
/nix/store/8s453hn8683q77ylqgyfa3xsah90lagw-cups-2.2.12/share
/nix/store/8s453hn8683q77ylqgyfa3xsah90lagw-cups-2.2.12/share
/nix/store/8wpfzivdsrlf23a6m8p1xgqpi79g7h2k-glib-2.60.7/share
/nix/store/8wpfzivdsrlf23a6m8p1xgqpi79g7h2k-glib-2.60.7/share
/nix/store/a02qr2d1lc5pk3kw12igdsv7adbslc0d-kitemviews-5.61.0/share
/nix/store/a02qr2d1lc5pk3kw12igdsv7adbslc0d-kitemviews-5.61.0/share
/nix/store/a5i3sz3iz0q6d0vrz6ngp0xkd3ca1lzm-kxmlgui-5.61.0/share
/nix/store/a5i3sz3iz0q6d0vrz6ngp0xkd3ca1lzm-kxmlgui-5.61.0/share
/nix/store/a5xx2qb29bmd8bva76bd2ihb8fghdf3g-kwindowsystem-5.61.0/share
/nix/store/a5xx2qb29bmd8bva76bd2ihb8fghdf3g-kwindowsystem-5.61.0/share
/nix/store/abfvn8n7k9k4p6s5rgyzsfyf30syarmy-kconfigwidgets-5.61.0/share
/nix/store/abfvn8n7k9k4p6s5rgyzsfyf30syarmy-kconfigwidgets-5.61.0/share
/nix/store/ag9vmpba17prxjbwy8ci5lqkprnsrzh3-libxfce4ui-4.14.1/share
/nix/store/ag9vmpba17prxjbwy8ci5lqkprnsrzh3-libxfce4ui-4.14.1/share
/nix/store/ag9vmpba17prxjbwy8ci5lqkprnsrzh3-libxfce4ui-4.14.1/share
/nix/store/ag9vmpba17prxjbwy8ci5lqkprnsrzh3-libxfce4ui-4.14.1/share
/nix/store/bild1sdd1avh4vlcm1iz0n7ijgmyzkyb-kdesignerplugin-5.61.0/share
/nix/store/bild1sdd1avh4vlcm1iz0n7ijgmyzkyb-kdesignerplugin-5.61.0/share
/nix/store/bivrxn6bfzki4fgfkzn3r5c8c1cfvb1x-knewstuff-5.61.0/share
/nix/store/bivrxn6bfzki4fgfkzn3r5c8c1cfvb1x-knewstuff-5.61.0/share
/nix/store/c86fm1j5xh11dkd9r75qlz0nlngpgxrc-xz-5.2.4/share
/nix/store/c86fm1j5xh11dkd9r75qlz0nlngpgxrc-xz-5.2.4/share
/nix/store/d46x3wsv502da22yigyy0f9kgwa4b68i-kglobalaccel-5.61.0/share
/nix/store/d46x3wsv502da22yigyy0f9kgwa4b68i-kglobalaccel-5.61.0/share
/nix/store/fgfml6m2if117z7vza0qdak478f1pgqa-kcompletion-5.61.0/share
/nix/store/fgfml6m2if117z7vza0qdak478f1pgqa-kcompletion-5.61.0/share
/nix/store/fmbfrbni00vvphq9d429b7q88397cix7-flex-2.6.4/share
/nix/store/fmbfrbni00vvphq9d429b7q88397cix7-flex-2.6.4/share
/nix/store/g6csawl6k7jxd2w41z1iggrhqn77ryx8-gtk+3-3.24.10/share
/nix/store/g6csawl6k7jxd2w41z1iggrhqn77ryx8-gtk+3-3.24.10/share
/nix/store/g6csawl6k7jxd2w41z1iggrhqn77ryx8-gtk+3-3.24.10/share
/nix/store/g6csawl6k7jxd2w41z1iggrhqn77ryx8-gtk+3-3.24.10/share
/nix/store/g6csawl6k7jxd2w41z1iggrhqn77ryx8-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10
/nix/store/g6csawl6k7jxd2w41z1iggrhqn77ryx8-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10
/nix/store/g6csawl6k7jxd2w41z1iggrhqn77ryx8-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10
/nix/store/g6csawl6k7jxd2w41z1iggrhqn77ryx8-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10
/nix/store/g6csawl6k7jxd2w41z1iggrhqn77ryx8-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10
/nix/store/g6csawl6k7jxd2w41z1iggrhqn77ryx8-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10
/nix/store/g6csawl6k7jxd2w41z1iggrhqn77ryx8-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10
/nix/store/g6csawl6k7jxd2w41z1iggrhqn77ryx8-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10
/nix/store/g6csawl6k7jxd2w41z1iggrhqn77ryx8-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10
/nix/store/g6csawl6k7jxd2w41z1iggrhqn77ryx8-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10
/nix/store/g6csawl6k7jxd2w41z1iggrhqn77ryx8-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10
/nix/store/g6csawl6k7jxd2w41z1iggrhqn77ryx8-gtk+3-3.24.10/share/gsettings-schemas/gtk+3-3.24.10
/nix/store/gajzhkpls5bhqgb9l617pkfxkrwf08na-kjobwidgets-5.61.0-bin/share
/nix/store/gajzhkpls5bhqgb9l617pkfxkrwf08na-kjobwidgets-5.61.0-bin/share
/nix/store/gz39vgf48ycvdd4b5484r5dkyx47sqal-kglobalaccel-5.61.0-bin/share
/nix/store/gz39vgf48ycvdd4b5484r5dkyx47sqal-kglobalaccel-5.61.0-bin/share
/nix/store/hvry76s75hpym72z262519xmq0yljraw-kservice-5.61.0/share
/nix/store/hvry76s75hpym72z262519xmq0yljraw-kservice-5.61.0/share
/nix/store/ijfn92hbqwg7cfvifanr6q0p99bmn212-kiconthemes-5.61.0/share
/nix/store/ijfn92hbqwg7cfvifanr6q0p99bmn212-kiconthemes-5.61.0/share
/nix/store/im61ipy2mh7xr7v185jmsdm3p9qx4020-phonon-qt5-4.10.3/share
/nix/store/im61ipy2mh7xr7v185jmsdm3p9qx4020-phonon-qt5-4.10.3/share
/nix/store/jl484rd0cbyhvp5q13d8hcd1iq6mvcpr-kcodecs-5.61.0/share
/nix/store/jl484rd0cbyhvp5q13d8hcd1iq6mvcpr-kcodecs-5.61.0/share
/nix/store/jlxp6qkp23l34lfljpqj94ppiwd3f5n3-hicolor-icon-theme-0.17/share
/nix/store/jlxp6qkp23l34lfljpqj94ppiwd3f5n3-hicolor-icon-theme-0.17/share
/nix/store/jlxp6qkp23l34lfljpqj94ppiwd3f5n3-hicolor-icon-theme-0.17/share
/nix/store/jlxp6qkp23l34lfljpqj94ppiwd3f5n3-hicolor-icon-theme-0.17/share
/nix/store/jm85jzq8rxqrgxmbbxwc6q4r6j341p14-kcoreaddons-5.61.0/share
/nix/store/jm85jzq8rxqrgxmbbxwc6q4r6j341p14-kcoreaddons-5.61.0/share
/nix/store/jq5ymibqcvbdff02ahip4xq4w4nscf5q-kwidgetsaddons-5.61.0/share
/nix/store/jq5ymibqcvbdff02ahip4xq4w4nscf5q-kwidgetsaddons-5.61.0/share
/nix/store/jy56vczryyq6g3wphmmyz7kn756jk304-kdoctools-5.61.0/share
/nix/store/jy56vczryyq6g3wphmmyz7kn756jk304-kdoctools-5.61.0/share
/nix/store/k01336mgicd7y0vsqcm590iisk0cmipl-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0
/nix/store/k01336mgicd7y0vsqcm590iisk0cmipl-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0
/nix/store/k01336mgicd7y0vsqcm590iisk0cmipl-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0
/nix/store/k01336mgicd7y0vsqcm590iisk0cmipl-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0
/nix/store/k01336mgicd7y0vsqcm590iisk0cmipl-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0
/nix/store/k01336mgicd7y0vsqcm590iisk0cmipl-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0
/nix/store/k01336mgicd7y0vsqcm590iisk0cmipl-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0
/nix/store/k01336mgicd7y0vsqcm590iisk0cmipl-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0
/nix/store/k01336mgicd7y0vsqcm590iisk0cmipl-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0
/nix/store/k01336mgicd7y0vsqcm590iisk0cmipl-gsettings-desktop-schemas-3.32.0/share/gsettings-schemas/gsettings-desktop-schemas-3.32.0
/nix/store/k0wh84idlq3m59b8lrib5jgqgw7c4vl9-kparts-5.61.0-bin/share
/nix/store/k0wh84idlq3m59b8lrib5jgqgw7c4vl9-kparts-5.61.0-bin/share
/nix/store/kciz9fg3fq7xf5bf2n92ffgi5ps3zb4f-knotifications-5.61.0-bin/share
/nix/store/kciz9fg3fq7xf5bf2n92ffgi5ps3zb4f-knotifications-5.61.0-bin/share
/nix/store/l6ghiiazchcnyjdw8al812sdapijchjv-bison-3.4.2/share
/nix/store/l6ghiiazchcnyjdw8al812sdapijchjv-bison-3.4.2/share
/nix/store/m640fs0gva5pjszzivhawk1h1zh77g3b-kwallet-5.61.0/share
/nix/store/m640fs0gva5pjszzivhawk1h1zh77g3b-kwallet-5.61.0/share
/nix/store/miifz0x1bkl5s7cnylk1gjjhbwwlp81i-kpty-5.61.0/share
/nix/store/miifz0x1bkl5s7cnylk1gjjhbwwlp81i-kpty-5.61.0/share
/nix/store/mx6j2jnbq9drayskjq33987hdcgk4p9w-exo-0.12.8/share
/nix/store/mx6j2jnbq9drayskjq33987hdcgk4p9w-exo-0.12.8/share
/nix/store/mx6j2jnbq9drayskjq33987hdcgk4p9w-exo-0.12.8/share
/nix/store/mx6j2jnbq9drayskjq33987hdcgk4p9w-exo-0.12.8/share
/nix/store/q3qwahj6by8k3856ccsxyhx834rpi31i-kwallet-5.61.0-bin/share
/nix/store/q3qwahj6by8k3856ccsxyhx834rpi31i-kwallet-5.61.0-bin/share
/nix/store/r4zhq97mwy46am7ij7kcr9frf3av8rzd-kcoreaddons-5.61.0-bin/share
/nix/store/r4zhq97mwy46am7ij7kcr9frf3av8rzd-kcoreaddons-5.61.0-bin/share
/nix/store/rcbjy8szqs3b2hsqi4k5ad8s4lhhasb7-solid-5.61.0/share
/nix/store/rcbjy8szqs3b2hsqi4k5ad8s4lhhasb7-solid-5.61.0/share
/nix/store/s2kqhxr2r5xa3afiywva1187227pmv2g-systemd-243/share
/nix/store/s2kqhxr2r5xa3afiywva1187227pmv2g-systemd-243/share
/nix/store/v5d4966ahvfir2hwpv003022f3pb7vik-gettext-0.19.8.1/share
/nix/store/v5d4966ahvfir2hwpv003022f3pb7vik-gettext-0.19.8.1/share
/nix/store/vgnqma5lhciki8yb290sb7zf1359zvqr-kunitconversion-5.61.0/share
/nix/store/vgnqma5lhciki8yb290sb7zf1359zvqr-kunitconversion-5.61.0/share
/nix/store/whf8fyrk08k55bxsjys5ps6azi9ngmn3-kdbusaddons-5.61.0/share
/nix/store/whf8fyrk08k55bxsjys5ps6azi9ngmn3-kdbusaddons-5.61.0/share
/nix/store/xwj4aqsmkcvqv0k95hb3d442gl2laa2n-kio-5.61.0/share
/nix/store/xwj4aqsmkcvqv0k95hb3d442gl2laa2n-kio-5.61.0/share
/nix/store/z6ds18p02nnbvx4p2nnpff2kh3kyj0c1-xfce4-session-4.14.0/share
/nix/store/z6ds18p02nnbvx4p2nnpff2kh3kyj0c1-xfce4-session-4.14.0/share
/nix/store/zq4wvlvp30qprax8l2bc743jg1g0w06p-kdelibs4support-5.61.0/share
/nix/store/zq4wvlvp30qprax8l2bc743jg1g0w06p-kdelibs4support-5.61.0/share
/nix/store/zz8jw4rb48ham7sm5nm36mfkll3fids7-sonnet-5.61.0/share
/nix/store/zz8jw4rb48ham7sm5nm36mfkll3fids7-sonnet-5.61.0/share
/nix/var/nix/profiles/default/share
/run/current-system/sw/share

ivan on 8 Nov 2019

Oh, I see the problem, I was using konsole to start another konsole, and XDG_DATA_DIRS becomes longer each time.

I am now using this workaround in ~/.zshrc to remove duplicate entries and keep konsole down to 31533 stats for icon files:

# Remove duplicate entries from XDG_DATA_DIRS to work around
# https://github.com/NixOS/nixpkgs/issues/67691
export XDG_DATA_DIRS=$(echo $XDG_DATA_DIRS | tr ':' '\n' | sort -u | tr '\n' ':' | sed -r 's/(^:|:$)//g')

ivan on 8 Nov 2019

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