hook_cpp_init 统计耗时高达55s #8
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xcode的统计一直认为不靠谱。。（比较粗糙）所以一般只相信自己的。 |
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等等，所以我还能用hook_cpp_init的计算结果作为参考依据么，该怎么拿结果做分析 |
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可以呀。我是说系统的不靠谱……哈哈
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发件人: ONG_J <notifications@github.com>
发送时间: Monday, February 22, 2021 10:39:34 AM
收件人: everettjf/Yolo <Yolo@noreply.github.com>
抄送: everettjf <everettjf@live.com>; State change <state_change@noreply.github.com>
主题: Re: [everettjf/Yolo] hook_cpp_init 统计耗时高达55s (#8)
等等，所以我还能用hook_cpp_init的计算结果作为参考依据么，该怎么拿结果做分析
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感谢回复，但SumInitTime算出来却是55.47678470611572 这是秒单位吧 启动体验上明显也没这么久 |
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忘了……毫秒吧
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发送时间: Monday, February 22, 2021 12:03:34 PM
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主题: Re: [everettjf/Yolo] hook_cpp_init 统计耗时高达55s (#8)
感谢回复，但SumInitTime算出来却是55.47678470611572 这是秒单位吧 启动体验上明显也没这么久
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因为pre-main过长，所以想借助hook_cpp_init计算下C++ static initializers的耗时，但结果更加让我迷惑了
initializer time 只需要0.9s，但SumInitTime算出来却是55.47678470611572，请问这是什么情况
`
Total pre-main time: 1.3 seconds (100.0%)
dylib loading time: 197.91 milliseconds (14.4%)
rebase/binding time: 149.23 milliseconds (10.9%)
ObjC setup time: 31.32 milliseconds (2.2%)
initializer time: 988.82 milliseconds (72.3%)
slowest intializers :
libSystem.B.dylib : 7.72 milliseconds (0.5%)
libMainThreadChecker.dylib : 38.77 milliseconds (2.8%)
libglInterpose.dylib : 565.71 milliseconds (41.3%)
xxx : 580.15 milliseconds (42.4%)
2021-02-07 21:21:37.646752+0800 xxx[58247:13175799] allinitinfo = (
"ASLR=0x104224000",
"0x10425ada4=2.408027648925781",
"0x1042b8388=0.08702278137207031",
"0x1047563b0=0.8720159530639648",
"0x104784e30=2.192974090576172",
"0x104855f24=0.08702278137207031",
"0x104a42fbc=0.04899501800537109",
"0x104ad4bf8=0.3559589385986328",
"0x105054c4c=1.742005348205566",
"0x1050b224c=0.598907470703125",
"0x1052fc91c=0.4349946975708008",
"0x10541f2e8=0.1919269561767578",
"0x1054a0e40=0.4279613494873047",
"0x1054f5e90=1.44195556640625",
"0x10575827c=0.01597404479980469",
"0x1057b4598=0.01502037048339844",
"0x1057c3c48=0.01502037048339844",
"0x1057c3cb0=0.04792213439941406",
"0x10592c978=1.612067222595215",
"0x105b474f8=0",
"0x105b77ae0=6.461977958679199",
"0x105b83214=0.3119707107543945",
"0x105b8c9f8=1.549959182739258",
"0x105b94d2c=0.3920793533325195",
"0x105ba13cc=2.676010131835938",
"0x105bb3ee4=0.4309415817260742",
"0x105bbbc5c=0.4830360412597656",
"0x105bc32a0=3.454089164733887",
"0x105c448a8=0.1039505004882812",
"0x105c61da4=0.02503395080566406",
"0x105fc0954=0.01502037048339844",
"0x106127a64=0.019073486328125",
"0x1064e0728=9.456038475036621",
"0x10654cd34=0.01692771911621094",
"0x10654d5bc=0.01299381256103516",
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"0x106555c5c=0.00095367431640625",
"0x1065802d8=4.915118217468262",
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"0x106a80980=0.01490116119384766",
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"0x106afb1b8=0.002026557922363281",
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"0x106b296e8=0",
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"0x106b32c70=0.01704692840576172",
"0x106b33f6c=0",
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"0x106b3af2c=0.001072883605957031",
"0x106b3f2e8=0.01394748687744141",
"0x106b400c4=0.01299381256103516",
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"0x106b541f4=0.01299381256103516",
"0x106b5a6c0=0.01597404479980469",
"0x106b5ba6c=0",
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"0x106b61a14=0",
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"0x106b64670=0.01502037048339844",
"0x106b64cf4=0",
"0x106b66c14=0.002026557922363281",
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"0x106b6aa10=0.01406669616699219",
"0x106b6b010=0",
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"0x106b73ddc=0.02801418304443359",
"0x106b7484c=0.001072883605957031",
"0x106b752cc=0",
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"0x106b7d0c4=0.00095367431640625",
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"SumInitTime=55.47678470611572"
)
`
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