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523
Enable frame headers cache for unwinding
已合并
lightaooii:master
OpenHarmony:master
lightaooii
创建于 2024-05-22 18:34
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### Issue https://gitee.com/openharmony/third_party_llvm-project/issues/I9RDEB ### Reason (Purpose, Solved Problem) Enable frame headers cache for unwinding ### Description Libunwind has LIBUNWIND_USE_FRAME_HEADER_CACHE option to cache frame headers for unwinding, but it's OFF in default which has been tested with a poor performance for multi-coroutine on Kotlin. Change it to ON for speeding up unwinding in /llvm-build/build.py: defines['LIBUNWIND_USE_FRAME_HEADER_CACHE'] = 'ON' ### Test (Local test) Before: 05-21 15:47:47.115 _Unwind_RaiseException jumpto cost 878 05-21 15:47:47.116 _Unwind_RaiseException jumpto cost 784 05-21 15:47:47.164 _Unwind_RaiseException jumpto cost 2059 05-21 15:47:47.165 _Unwind_RaiseException jumpto cost 1109 05-21 15:47:47.166 _Unwind_RaiseException jumpto cost 1088 05-21 15:47:47.168 _Unwind_RaiseException jumpto cost 1300 05-21 15:47:47.230 _Unwind_RaiseException jumpto cost 1798 05-21 15:47:47.231 _Unwind_RaiseException jumpto cost 1482 05-21 15:47:47.232 _Unwind_RaiseException jumpto cost 915 05-21 15:47:47.233 _Unwind_RaiseException jumpto cost 876 05-21 15:47:47.284 _Unwind_RaiseException jumpto cost 4424 05-21 15:47:47.285 _Unwind_RaiseException jumpto cost 865 05-21 15:47:47.286 _Unwind_RaiseException jumpto cost 865 05-21 15:47:47.287 _Unwind_RaiseException jumpto cost 827 05-21 15:47:47.366 _Unwind_RaiseException jumpto cost 1198 05-21 15:47:47.368 _Unwind_RaiseException jumpto cost 1198 05-21 15:47:47.368 _Unwind_RaiseException jumpto cost 766 After: 05-21 18:35:57.052 _Unwind_RaiseException jumpto cost 98 05-21 18:35:57.052 _Unwind_RaiseException jumpto cost 86 05-21 18:35:57.052 _Unwind_RaiseException jumpto cost 93 05-21 18:35:57.052 _Unwind_RaiseException jumpto cost 85 05-21 18:35:57.052 _Unwind_RaiseException jumpto cost 86 05-21 18:35:57.052 _Unwind_RaiseException jumpto cost 100 05-21 18:35:57.052 _Unwind_RaiseException jumpto cost 85 05-21 18:35:57.052 _Unwind_RaiseException jumpto cost 89 05-21 18:35:57.053 _Unwind_RaiseException jumpto cost 93 05-21 18:35:57.053 _Unwind_RaiseException jumpto cost 81 05-21 18:35:57.053 _Unwind_RaiseException jumpto cost 85 05-21 18:35:57.085 _Unwind_RaiseException jumpto cost 147 05-21 18:35:57.085 _Unwind_RaiseException jumpto cost 110 05-21 18:35:57.085 _Unwind_RaiseException jumpto cost 94 05-21 18:35:57.085 _Unwind_RaiseException jumpto cost 97 05-21 18:35:57.101 _Unwind_RaiseException jumpto cost 160 05-21 18:35:57.101 _Unwind_RaiseException jumpto cost 97 05-21 18:35:57.101 _Unwind_RaiseException jumpto cost 93 05-21 18:35:57.101 _Unwind_RaiseException jumpto cost 90 05-21 18:35:57.135 _Unwind_RaiseException jumpto cost 222 ### Need to cherry-pick to release (eg:monthly_20221018, OpenHarmony-3.2-Beta5 ...) branch? no ### Compatibility impact assessment, please indicate (Y/N) N
此 Pull Request 需要通过一些审核项
类型
指派人员
状态
审查
hhj
Pavel Kosov
已审查通过
已完成
(1/1人)
测试
openharmony_ci
已测试通过
已完成
(1/1人)
怎样手动合并此 Pull Request
git checkout master
git pull https://gitee.com/lightaooii/llvm.git master
git push origin master
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xwx1135370
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guzhihao4
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liwentao
liwentao_uiw
xxlight
xxlight
Kulikov Ivan
kulikov-ivan
Oleg Kuptsov
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liuguangfeng
liuguangfengm
Kholiavin Nikolai
nkholiavin
Lyupa Anastasia
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Wang Yaofeng
robottoy
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urandon
OlshevskyVladimir
OlshevskyVladimir
dhy308
dhy308
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qq2235349717
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关联 Issue
I9RDEB
Enable frame headers cache for unwinding
Pull Request 合并后将关闭上述关联 Issue
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