请问 android10 系统启动两次 Zygote 是什么原因？

[yhm2046]

查看 log 发现启动了两次： boot_progress_preload_start boot_progress_preload_end  完整 log： https://drive.google.com/file/d/1VakMGEe_OeILmirE6Y4CuLFxrqSYJL98/view?usp=sharing, https://drive.google.com/file/d/1zFsNFyvMsLi7X9x5nBpJka0f_W-nDXxd/view?usp=sharing

[doyer]

期待解答

[joydee]

1. 查看源码 perfboot.py( https://cs.android.com/android/platform/superproject/+/master:system/core/init/perfboot.py)里面有个"output_results(filename, record_list, tags)函数"，其中 Comments 部分说明的比较详细:
` # First, count the number of the values of each tag.
# This is for dealing with events that occur multiple times.
# For instance, boot_progress_preload_start and boot_progress_preload_end
# are recorded twice on 64-bit system. One is for 64-bit zygote process
# and the other is for 32-bit zygote process.
`

[jeepc]

https://juejin.cn/post/6844903717301387272