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[Alberto Salvia Novella <es20490446e@xxxxxxxxx>]

** Changed in: chromium-browser (Ubuntu)
   Importance: Undecided => Low

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https://bugs.launchpad.net/bugs/1530366

Title:
  1 second lag when opening URLs from the command line

Status in chromium-browser package in Ubuntu:
  Confirmed

Bug description:
  When you, or another application, attempts to open a URL in Chromium,
  there is a very perceptible delay: over 1 second on my modern
  i7/ssds/>16gb ram desktop.

  e.g.

  chromium-browser http://google.com

  or:

  xdg-open http://google.com

  
  This is annoying.  It doesn't happen with Chrome Stable Channel, nor with Debian's Chromium packaging.  This has become significantly worse since Chromium 45.

  --

  I had a go at diagnosing this on the Chrome upstream bug tracker:
  https://code.google.com/p/chromium/issues/detail?id=569437

  In summary: Chromium in Ubuntu is built with dynamic linking, which is
  apparently a big surprise to the Chromium people, as it is known to
  cause issues.  Specifically, just loading libraries (like `ldd -r`)
  takes 900ms+, instead of the <100ms expected.  This doesn't show up
  well in Chrome tracing, as it has to happen before Chrome tracing can
  start.

  chrome-stable:
  % time ldd -r /opt/google/chrome/chrome | wc -l 
  81

  0.02s user 0.01s system 84% cpu 0.038 total

  chromium-browser from Ubuntu:
  % time ldd -r /usr/lib/chromium-browser/chromium-browser | wc -l
  201

  0.89s user 0.01s system 99% cpu 0.909 total

  The choice to go shared_library is only in Ubuntu (i.e. not Debian).
  The debian/rules file in the package contains:

  147 # Do this for every architecture. More than 4GB of memory is too much to expect
  148 # of builders.
  149 COMPONENT_SHARED_LIB_BUILD := 1
  150 
  151 ifeq (1,$(COMPONENT_SHARED_LIB_BUILD))
  152 BROWSER_GYP_DEFINES += component=shared_library
  153 FFMPEG_GYP_DEFINES += component=shared_library
  154 endif

  --

  Please remove this customisation and Make opening links Great Again.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: chromium-browser 47.0.2526.73-0ubuntu0.15.10.1.1215
  Uname: Linux 4.3.0-040300-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  Date: Thu Dec 31 15:25:30 2015
  Desktop-Session:
   'xsession'
   '/etc/xdg/xdg-xsession:/etc/xdg/xdg-xsession:/etc/xdg'
   '/usr/share/xsession:/usr/share/xsession:/usr/local/share/:/usr/share/'
  DetectedPlugins:
   
  Env:
   'None'
   'None'
  InstalledPlugins:
   /usr/lib/mozilla/plugins:
     => libgnome-shell-browser-plugin.so
           (size: 18888 bytes, mtime: Mon Oct 19 13:43:03 2015)
  Load-Avg-1min: 0.55
  Load-Processes-Running-Percent:   0.1%
  MachineType: System manufacturer System Product Name
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.3.0-040300-generic root=UUID=672510b8-afb9-425f-a58d-bd325f7c987a ro rootflags=subvol=@
  SourcePackage: chromium-browser
  UpgradeStatus: Upgraded to wily on 2015-08-28 (124 days ago)
  dmi.bios.date: 12/19/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1805
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: P8Z77-V
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1805:bd12/19/2012:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP8Z77-V:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer
  gconf-keys: /desktop/gnome/applications/browser/exec = b'firefox\n'/desktop/gnome/url-handlers/https/command = b'sensible-browser %s\n'/desktop/gnome/url-handlers/https/enabled = b'true\n'/desktop/gnome/url-handlers/http/command = b'sensible-browser %s\n'/desktop/gnome/url-handlers/http/enabled = b'true\n'/desktop/gnome/session/required_components/windowmanager = b''/apps/metacity/general/compositing_manager = b''/desktop/gnome/interface/icon_theme = b'gnome\n'/desktop/gnome/interface/gtk_theme = b'Clearlooks\n'
  modified.conffile..etc.chromium.browser.default: [modified]
  modified.conffile..etc.default.chromium.browser: [deleted]
  mtime.conffile..etc.chromium.browser.default: 2015-03-08T12:05:01.795251

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