Comments (10)
Matthew1874
commented on July 28, 2024
1
@wangzhizhou 有符号表才有作用，而且本来启动耗时偏差就很大，这种二进制重排本来就收效甚微，被某条等厂大肆鼓吹罢了，我只是实在是不好意思揭下去了，毕竟那阵子是晋升季，不能再多说了，要得罪人了
你好， 有符号表才有作用---> 能不能详细说一下呢？ 是指 dsym那种符号表吗？ 谢谢
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ianisme
commented on July 28, 2024
1
@wangzhizhou 有符号表才有作用，而且本来启动耗时偏差就很大，这种二进制重排本来就收效甚微，被某条等厂大肆鼓吹罢了，我只是实在是不好意思揭下去了，毕竟那阵子是晋升季，不能再多说了，要得罪人了
mark一下，敢于说真话的人不多了，哈哈哈
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yulingtianxia
commented on July 28, 2024
对的！
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wangzhizhou
commented on July 28, 2024
怎么测试对比重排前后的效果？
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wangzhizhou
commented on July 28, 2024
我这边也是重排后反而File Backed Page In次数变多了
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wangzhizhou
commented on July 28, 2024
这个貌似只有对全源码项目有作用，对于.a无效
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wangzhizhou
commented on July 28, 2024
看看这个，我现在正在试验把你的这个和另一个结合起来使用:
https://github.com/rhythmkay/PGOAnalyzer
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wangzhizhou
commented on July 28, 2024
PGOAnalyzer是针对OC的二进制依赖做的，不过还得试过之后才能判断效果
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yulingtianxia
commented on July 28, 2024
@Matthew1874 嗯可以这样理解
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yulingtianxia
commented on July 28, 2024
@wangzhizhou 有符号表才有作用，而且本来启动耗时偏差就很大，这种二进制重排本来就收效甚微，被某条等厂大肆鼓吹罢了，我只是实在是不好意思揭下去了，毕竟那阵子是晋升季，不能再多说了，要得罪人了
mark一下，敢于说真话的人不多了，哈哈哈
然而我还是怂了，删了原评论哈哈
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Related Issues (11)
- Undefined symbol: ___sanitizer_cov_trace_pc_guard_init HOT 9
- 如果使用静态库生成多个targets的话，是捕获不到里面的symbol的。而已经打好的静态库一般不会重新编译，除了舍弃不统计这些targets，还有其他的好方法吗？ HOT 1
- 1.0.1修复了load统计不到的，弱弱的疑问下，collectBegan这个貌似只有获取，没有设置。 HOT 1
- 输出的order file文件只有_main HOT 5
- the number of methods less than use hook objc_msgSend
- 大佬 怎么看是否重排成功 HOT 3
- build setting配置 HOT 2
- 无法获取其他类的方法调用符合 HOT 2
- load方法貌似检测不到？ HOT 3
- 导入生成的order file 会报错 HOT 4
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