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Message #146282
[Bug 1511629] Re: baobab eats 80% of CPU when its window loses focus
I installed baobab-dbgsym and tried a couple of system-wide profilers
(sysprof; perf top -g). They don't see any symbols in baobab :(
perf report --sort comm,dso shows this:
Children Self Command Shared Object ◆
+ 51,13% 0,00% baobab [unknown] ▒
+ 42,56% 40,07% baobab libgtk-3.so.0.1800.2 ▒
+ 9,39% 9,35% baobab libglib-2.0.so.0.4600.1 ▒
+ 9,34% 8,99% baobab libgobject-2.0.so.0.4600.1 ▒
+ 6,95% 6,56% baobab libc-2.21.so ▒
+ 6,70% 0,00% Xorg [unknown] ▒
+ 6,63% 6,50% Xorg intel_drv.so ▒
+ 4,30% 4,20% baobab libcairo.so.2.11400.2 ▒
+ 3,84% 0,00% gnome-shell [unknown] ▒
+ 2,96% 2,95% swapper [kernel.kallsyms] ▒
+ 2,91% 0,22% gnome-shell libc-2.21.so ▒
+ 2,80% 2,56% Xorg [kernel.kallsyms] ▒
+ 2,78% 0,39% gnome-shell [kernel.kallsyms] ▒
+ 2,75% 1,03% Xorg libc-2.21.so ▒
+ 2,42% 0,01% gnome-shell [drm] ▒
+ 2,42% 2,38% gnome-shell [i915] ▒
+ 1,86% 0,01% EMT libc-2.21.so ▒
+ 1,75% 1,75% EMT [vboxpci] ▒
+ 1,68% 1,63% Xorg Xorg ▒
+ 1,47% 1,42% baobab libpthread-2.21.so ▒
+ 1,34% 0,16% Xorg libpthread-2.21.so ▒
+ 1,33% 0,00% EMT [unknown] ▒
If I expand the libgtk+ DSO, I see this:
- 42,56% 40,07% baobab libgtk-3.so.0.1800.2 ▒
+ 6,71% gtk_css_selector_tree_get_change ▒
+ 5,87% match_class ▒
+ 4,56% gtk_css_static_style_compute_value ▒
+ 4,20% transition_info_add ▒
+ 4,03% gtk_css_selector_tree_match_foreach ▒
+ 3,52% gtk_css_node_declaration_has_class ▒
+ 3,20% _gtk_css_selector_tree_match_all ▒
+ 2,98% _gtk_css_style_property_lookup_by_id ▒
+ 2,65% gtk_css_matcher_node_get_previous ▒
+ 2,55% _gtk_css_value_compute ▒
+ 2,51% gtk_css_static_style_get_value ▒
+ 2,24% _gtk_css_value_ref ▒
+ 2,18% match_name ▒
2,14% _gtk_css_array_value_get_nth ▒
+ 2,07% gtk_css_value_number_compute ▒
+ 1,88% _gtk_css_value_unref ▒
+ 1,82% gtk_css_value_array_compute ▒
+ 1,78% _gtk_css_style_property_is_inherit ▒
+ 1,73% gtk_css_selector_default_foreach_matcher ▒
1,56% gtk_css_animated_style_create_css_transitions.constprop.1 ▒
+ 1,36% _gtk_css_lookup_resolve ▒
+ 1,29% gtk_css_value_rgba_compute ▒
+ 1,23% gtk_css_style_provider_lookup ▒
+ 1,22% gtk_css_matcher_superset_has_class ▒
+ 1,05% match_pseudoclass_state ▒
+ 1,00% _gtk_css_number_value_get ▒
+ 0,96% gtk_css_value_initial_compute ▒
0,89% _gtk_allocated_bitmask_get ▒
+ 0,89% _gtk_css_selector_tree_get_change_all ▒
+ 0,89% _gtk_css_style_property_get_n_properties ▒
+ 0,77% gtk_css_style_add_difference ▒
+ 0,69% gtk_css_matcher_node_has_class ▒
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to baobab in Ubuntu.
https://bugs.launchpad.net/bugs/1511629
Title:
baobab eats 80% of CPU when its window loses focus
Status in baobab package in Ubuntu:
New
Bug description:
Steps to reproduce:
1. Run Baobab
2. Have it index some directory
3. Wait for it to finish
4. Open 'top' in a terminal
5. Focus the Baobab window, look at the CPU usage of the /usr/bin/baobab --gapplication-service process
6. Focus some other window, look at the CPU usage of the /usr/bin/baobab --gapplication-service process
7. Repeat steps 5 and 6 until the pattern becomes clear
Expected results:
CPU usage is low in both step 5 and 6.
Actual results:
CPU usage in step 5 is 0. In step 6 it rises to 80% of one core.
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: baobab 3.16.1-1ubuntu1
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic x86_64
ApportVersion: 2.19.1-0ubuntu3
Architecture: amd64
CurrentDesktop: GNOME
Date: Fri Oct 30 08:40:48 2015
EcryptfsInUse: Yes
InstallationDate: Installed on 2012-07-25 (1191 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
SourcePackage: baobab
UpgradeStatus: Upgraded to wily on 2015-10-22 (7 days ago)
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References