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Glorfindel
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I'm experiencing very weird issue as far I remember from Yosemite up to latest El Capitan 10.11.3 (15D21) and Safari Version 9.0.3 (11601.4.4) Actually it's started to become more annoying with time. Sometimes Safari goes up to 100% cpu usage, sometimes even more, but it's directly on safari process, all child processes stay at normal cpu usage including networking thread. I have started to debugging issue as far I can with closed source. I have tried to delete all cache,cookies,bookmarks and all possible data stored in relation to Safari.app including browsing and other databases. It didn't help much. I have created new test account on my macbook pro, then tried to reproduce issue with plain-set osx with safari, but after hours of usage couldn't reproduce the issue. Then I have imported Bookmarks.plist from my current account into cleanly set account, after less then 15 minutes, safari went up to 100% cpu usage again. I have also tried to use iCloud to automatically migrate safari data incase I have made mistake with manual transfer, but it seems icloud safari backup also made problem come back. My bookmarks seems normal, nothing to share here, few pages stored in favorites, one sub-directory in favorites, and couple more in bookmarks but more importantly plist file format does not seems to be corrupted itself. I couldn't find that issue is related strictly to one website, it seems it might be related to Favorites bookmarks. Does anyone have and workaround on this issue?

PS. I don't have any problems with other browser, such as Opera,Chrome,Firefox - but using other browser it's not the solution. If that might be helpful I have took part in developer preview beta program during Yosemite, I have went back to normal release with first public Yosemite release, but I don't really think this is source of the problem.

Safari process sample before 100% load

Screenshot with highlighted 100% usage of safari mother-process Screenshot with highlighted 100% usage of safari mother-process http://I.stack.imgur.com/VtIKY.pngScreenshot with highlighted 100% usage of safari mother-process

I'm experiencing very weird issue as far I remember from Yosemite up to latest El Capitan 10.11.3 (15D21) and Safari Version 9.0.3 (11601.4.4) Actually it's started to become more annoying with time. Sometimes Safari goes up to 100% cpu usage, sometimes even more, but it's directly on safari process, all child processes stay at normal cpu usage including networking thread. I have started to debugging issue as far I can with closed source. I have tried to delete all cache,cookies,bookmarks and all possible data stored in relation to Safari.app including browsing and other databases. It didn't help much. I have created new test account on my macbook pro, then tried to reproduce issue with plain-set osx with safari, but after hours of usage couldn't reproduce the issue. Then I have imported Bookmarks.plist from my current account into cleanly set account, after less then 15 minutes, safari went up to 100% cpu usage again. I have also tried to use iCloud to automatically migrate safari data incase I have made mistake with manual transfer, but it seems icloud safari backup also made problem come back. My bookmarks seems normal, nothing to share here, few pages stored in favorites, one sub-directory in favorites, and couple more in bookmarks but more importantly plist file format does not seems to be corrupted itself. I couldn't find that issue is related strictly to one website, it seems it might be related to Favorites bookmarks. Does anyone have and workaround on this issue?

PS. I don't have any problems with other browser, such as Opera,Chrome,Firefox - but using other browser it's not the solution. If that might be helpful I have took part in developer preview beta program during Yosemite, I have went back to normal release with first public Yosemite release, but I don't really think this is source of the problem.

Safari process sample before 100% load

Screenshot with highlighted 100% usage of safari mother-process Screenshot with highlighted 100% usage of safari mother-process http://I.stack.imgur.com/VtIKY.png

I'm experiencing very weird issue as far I remember from Yosemite up to latest El Capitan 10.11.3 (15D21) and Safari Version 9.0.3 (11601.4.4) Actually it's started to become more annoying with time. Sometimes Safari goes up to 100% cpu usage, sometimes even more, but it's directly on safari process, all child processes stay at normal cpu usage including networking thread. I have started to debugging issue as far I can with closed source. I have tried to delete all cache,cookies,bookmarks and all possible data stored in relation to Safari.app including browsing and other databases. It didn't help much. I have created new test account on my macbook pro, then tried to reproduce issue with plain-set osx with safari, but after hours of usage couldn't reproduce the issue. Then I have imported Bookmarks.plist from my current account into cleanly set account, after less then 15 minutes, safari went up to 100% cpu usage again. I have also tried to use iCloud to automatically migrate safari data incase I have made mistake with manual transfer, but it seems icloud safari backup also made problem come back. My bookmarks seems normal, nothing to share here, few pages stored in favorites, one sub-directory in favorites, and couple more in bookmarks but more importantly plist file format does not seems to be corrupted itself. I couldn't find that issue is related strictly to one website, it seems it might be related to Favorites bookmarks. Does anyone have and workaround on this issue?

PS. I don't have any problems with other browser, such as Opera,Chrome,Firefox - but using other browser it's not the solution. If that might be helpful I have took part in developer preview beta program during Yosemite, I have went back to normal release with first public Yosemite release, but I don't really think this is source of the problem.

Safari process sample before 100% load

Screenshot with highlighted 100% usage of safari mother-process Screenshot with highlighted 100% usage of safari mother-process

Made a change the OP requested. Minor editing.
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Ɱark Ƭ
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ImI'm experiencing very weird issue as far iI remember from Yosemite up to latest El Capitan 10.11.3 (15D21) and Safari Version 9.0.3 (11601.4.4) Actually it's started to become more annoying with time. Sometimes Safari goes up to 100% cpu usage, sometimes even more, but it's directly on safari process, all child processes stay at normal cpu usage including networking thread. I have started to debugging issue as far iI can with closed source. I have tried to delete all cache,cookies,bookmarks and all possible data stored in relation to Safari.app including browsing and other databases. It didn't help much. I have created new test account on my macbook pro, then tried to reproduce issue with plain-set osx with safari, but after hours of usage couldn't reproduce the issue. Then iI have imported Bookmarks.plist from my current account into cleanly set account, after less then 15 minutes, safari went up to 100% cpu usage again. I have also tried to use iCloud to automatically migrate safari data incase iI have made mistake with manual transfer, but it seems icloud safari backup also made problem come back. My bookmarks seems normal, nothing to share here, few pages stored in favorites, one sub-directory in favorites, and couple more in bookmarks but more importantly plist file format does not seems to be corrupted itself. I couldn't find that issue is related strictly to one website, it seems it might be related to Favorites bookmarks. Does anyone have and workaround on this issue?

PS. I dontdon't have any problems with other browser, such as Opera,Chrome,Firefox - but using other browser it's not the solution. If that might be helpful iI have took part in developer preview beta program during Yosemite, iI have went back to normal release with first public Yosemite release, but i dontI don't really think this is source of the problem.

Safari process sample before 100% load http://pastebin.com/nxxmx2G0Safari process sample before 100% load

Safari process sample during 100% load pastebin.com/RDCLRB1n - "This url has been edited to bypass limitation since i can't post more than 2 links because i have less then 10 reputation points, i hope moderator will remove this message and fix the url, Thanks"

Screenshot with highlighted 100% usage of safari mother-process Screenshot with highlighted 100% usage of safari mother-processScreenshot with highlighted 100% usage of safari mother-process http://I.stack.imgur.com/VtIKY.png

Im experiencing very weird issue as far i remember from Yosemite up to latest El Capitan 10.11.3 (15D21) and Safari Version 9.0.3 (11601.4.4) Actually it's started to become more annoying with time. Sometimes Safari goes up to 100% cpu usage, sometimes even more, but it's directly on safari process, all child processes stay at normal cpu usage including networking thread. I have started to debugging issue as far i can with closed source. I have tried to delete all cache,cookies,bookmarks and all possible data stored in relation to Safari.app including browsing and other databases. It didn't help much. I have created new test account on my macbook pro, then tried to reproduce issue with plain-set osx with safari, but after hours of usage couldn't reproduce the issue. Then i have imported Bookmarks.plist from my current account into cleanly set account, after less then 15 minutes, safari went up to 100% cpu usage again. I have also tried to use iCloud to automatically migrate safari data incase i have made mistake with manual transfer, but it seems icloud safari backup also made problem come back. My bookmarks seems normal, nothing to share here, few pages stored in favorites, one sub-directory in favorites, and couple more in bookmarks but more importantly plist file format does not seems to be corrupted itself. I couldn't find that issue is related strictly to one website, it seems it might be related to Favorites bookmarks. Does anyone have and workaround on this issue?

PS. I dont have any problems with other browser, such as Opera,Chrome,Firefox - but using other browser it's not the solution. If that might be helpful i have took part in developer preview beta program during Yosemite, i have went back to normal release with first public Yosemite release, but i dont really think this is source of the problem.

Safari process sample before 100% load http://pastebin.com/nxxmx2G0

Safari process sample during 100% load pastebin.com/RDCLRB1n - "This url has been edited to bypass limitation since i can't post more than 2 links because i have less then 10 reputation points, i hope moderator will remove this message and fix the url, Thanks"

Screenshot with highlighted 100% usage of safari mother-process Screenshot with highlighted 100% usage of safari mother-process

I'm experiencing very weird issue as far I remember from Yosemite up to latest El Capitan 10.11.3 (15D21) and Safari Version 9.0.3 (11601.4.4) Actually it's started to become more annoying with time. Sometimes Safari goes up to 100% cpu usage, sometimes even more, but it's directly on safari process, all child processes stay at normal cpu usage including networking thread. I have started to debugging issue as far I can with closed source. I have tried to delete all cache,cookies,bookmarks and all possible data stored in relation to Safari.app including browsing and other databases. It didn't help much. I have created new test account on my macbook pro, then tried to reproduce issue with plain-set osx with safari, but after hours of usage couldn't reproduce the issue. Then I have imported Bookmarks.plist from my current account into cleanly set account, after less then 15 minutes, safari went up to 100% cpu usage again. I have also tried to use iCloud to automatically migrate safari data incase I have made mistake with manual transfer, but it seems icloud safari backup also made problem come back. My bookmarks seems normal, nothing to share here, few pages stored in favorites, one sub-directory in favorites, and couple more in bookmarks but more importantly plist file format does not seems to be corrupted itself. I couldn't find that issue is related strictly to one website, it seems it might be related to Favorites bookmarks. Does anyone have and workaround on this issue?

PS. I don't have any problems with other browser, such as Opera,Chrome,Firefox - but using other browser it's not the solution. If that might be helpful I have took part in developer preview beta program during Yosemite, I have went back to normal release with first public Yosemite release, but I don't really think this is source of the problem.

Safari process sample before 100% load

Screenshot with highlighted 100% usage of safari mother-process Screenshot with highlighted 100% usage of safari mother-process http://I.stack.imgur.com/VtIKY.png

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user169474
user169474

Safari 8.0 - 9.0 100% Cpu usage OSX 10.11.3 might be related to bookmarks / favorites

Im experiencing very weird issue as far i remember from Yosemite up to latest El Capitan 10.11.3 (15D21) and Safari Version 9.0.3 (11601.4.4) Actually it's started to become more annoying with time. Sometimes Safari goes up to 100% cpu usage, sometimes even more, but it's directly on safari process, all child processes stay at normal cpu usage including networking thread. I have started to debugging issue as far i can with closed source. I have tried to delete all cache,cookies,bookmarks and all possible data stored in relation to Safari.app including browsing and other databases. It didn't help much. I have created new test account on my macbook pro, then tried to reproduce issue with plain-set osx with safari, but after hours of usage couldn't reproduce the issue. Then i have imported Bookmarks.plist from my current account into cleanly set account, after less then 15 minutes, safari went up to 100% cpu usage again. I have also tried to use iCloud to automatically migrate safari data incase i have made mistake with manual transfer, but it seems icloud safari backup also made problem come back. My bookmarks seems normal, nothing to share here, few pages stored in favorites, one sub-directory in favorites, and couple more in bookmarks but more importantly plist file format does not seems to be corrupted itself. I couldn't find that issue is related strictly to one website, it seems it might be related to Favorites bookmarks. Does anyone have and workaround on this issue?

PS. I dont have any problems with other browser, such as Opera,Chrome,Firefox - but using other browser it's not the solution. If that might be helpful i have took part in developer preview beta program during Yosemite, i have went back to normal release with first public Yosemite release, but i dont really think this is source of the problem.

Safari process sample before 100% load http://pastebin.com/nxxmx2G0

Safari process sample during 100% load pastebin.com/RDCLRB1n - "This url has been edited to bypass limitation since i can't post more than 2 links because i have less then 10 reputation points, i hope moderator will remove this message and fix the url, Thanks"

Screenshot with highlighted 100% usage of safari mother-process Screenshot with highlighted 100% usage of safari mother-process