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[Chad Miller <chad.miller@xxxxxxxxxxxxx>]

Also, how are you measuring what core is being used?

It is a running chromium that no longer uses more than a speficific,
named core core? A running chromium that alternates cores, but never
uses uses more than one? Does it happen with a new chromium session?

Needless to say, I can't reproduce, and I'm interested in what you are
reporting.

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Packages, which is subscribed to chromium-browser in Ubuntu.
https://bugs.launchpad.net/bugs/1457490

Title:
  Chrome using only one core after S3/resume

Status in chromium-browser package in Ubuntu:
  Incomplete

Bug description:
  Cant say anymore. I experienced the same issue with many kernels.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: chromium-browser 42.0.2311.135-1ubuntu1.1160
  Uname: Linux 4.1.0-040100rc2-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  CurrentDesktop: XFCE
  DRM.card0.DVI.D.1:
   edid-base64: AP///////wBMLZUHNDJBMykUAQOANB14KizBpFZQoSgPUFS/74CBAIFAgYCVAKlAswBxT5UPAjqAGHE4LUBYLEUACSUhAAAeAAAA/QA4Sx5REQAKICAgICAgAAAA/ABTQTMwMC9TQTM1MAogAAAA/wBIMUFLNTAwMDAwCiAgAaQCAQQAAjqA0HI4LUAQLEWACSUhAAAeAR0AclHQHiBuKFUACSUhAAAeAR0AvFLQHiC4KFVACSUhAAAejArQkCBAMSAMQFUACSUhAAAYjArQiiDgLRAQPpYACSUhAAAYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAXg==
   dpms: On
   modes: 1920x1080 1920x1080 1920x1080 1600x1200 1680x1050 1280x1024 1280x1024 1440x900 1440x900 1280x960 1280x800 1152x864 1280x720 1280x720 1280x720 1024x768 1024x768 1024x768 832x624 800x600 800x600 800x600 800x600 720x576 720x480 720x480 640x480 640x480 640x480 640x480 640x480 720x400
   enabled: enabled
   status: connected
  DRM.card0.HDMI.A.1:
   edid-base64: AP///////wAebaxZAQEBAQUWAQOAMx146mJ1o1VPoCcSUFQhCABxQIHAgQCBgJUAkECpwLMAAjqAGHE4LUBYLEUA/iIRAAAeAAAA/QA4PR5TDwAKICAgICAgAAAA/AAyNEVBNTMKICAgICAgAAAA/wAKICAgICAgICAgICAgAQYCAx3xSpAEAwEUEgUfEBMjCQcHgwEAAGUDDAAQAAI6gBhxOC1AWCxFAP4iEQAAHgEdgBhxHBYgWCwlAP4iEQAAngEdAHJR0B4gbihVAP4iEQAAHowK0Iog4C0QED6WAP4iEQAAGAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA5g==
   dpms: On
   modes: 1920x1080 1920x1080 1920x1080i 1920x1080i 1920x1080 1920x1080i 1680x1050 1400x1050 1600x900 1280x1024 1440x900 1280x800 1152x864 1280x720 1280x720 1280x720 1024x768 800x600 720x576 720x480 720x480 640x480 640x480
   enabled: enabled
   status: connected
  Date: Thu May 21 15:34:51 2015
  Desktop-Session:
   'xubuntu'
   '/etc/xdg/xdg-xubuntu:/usr/share/upstart/xdg:/etc/xdg:/etc/xdg'
   '/usr/share/xubuntu:/usr/share/xfce4:/usr/local/share/:/usr/share/:/usr/share'
  DetectedPlugins:
   
  Env:
   'None'
   'None'
  InstalledPlugins:
   /usr/lib/mozilla/plugins:
     => librhythmbox-itms-detection-plugin.so
           (size: 6096 bytes, mtime: Sun Apr  5 13:24:25 2015)
  Load-Avg-1min: 5.28
  Load-Processes-Running-Percent:   0.5%
  MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.1.0-040100rc2-generic root=/dev/sda6 ro nosplash
  SourcePackage: chromium-browser
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/29/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P1.90
  dmi.board.name: A75 Pro4-M
  dmi.board.vendor: ASRock
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.90:bd05/29/2012:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnA75Pro4-M:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To Be Filled By O.E.M.
  dmi.product.version: To Be Filled By O.E.M.
  dmi.sys.vendor: To Be Filled By O.E.M.
  etcconfigc09flashstalenesscheck:
   FLASH_STALENESS_REWARN_AT_SOONEST=3  #days
   FLASH_STALENESS_MAX_TRIES_PER_100_DAYS=5
   FLASH_STALENESS_WARN_DIR=~/.config/chromium/Ubuntu/stale-flashplayer-warned
   FLASH_STALENESS_OBSELETE_PACKAGES="flashplugin-installer adobe-flash-player"
   FLASH_STALENESS_GOOD_PACKAGE=adobe-flashplugin
  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: 2015-01-21T22:10:33.392304

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