07 2022 档案

摘要:打印callstack in jni jclass throwable_class = env->FindClass("java/lang/Throwable"); jmethodID throwable_init = env->GetMethodID(throwable_class, "<init 阅读全文
posted @ 2022-07-23 13:40 aspirs 阅读(34) 评论(0) 推荐(0) 编辑
摘要:use ftrace during boot phase trace_buf_size [KMG] 比如trace_buf_size=1M,这将会把每个cpu的trace buffer设置为1M trace_event trace_event=sched:*,timer:*,irq:* trace_ 阅读全文
posted @ 2022-07-23 13:34 aspirs 阅读(118) 评论(0) 推荐(0) 编辑
摘要:alarm timer kernel里的alarm timer可以由以下方式来设置: 1. android alarmmanagerservice来设置,此时的timer type要为RTC_WAKEUP或者ELAPSED_REALTIME_WAKEUP,在alarmmanagerservice j 阅读全文
posted @ 2022-07-23 13:03 aspirs 阅读(286) 评论(0) 推荐(0) 编辑
摘要:multimedia misc resolution definition 2K/FHD: 1920x1080 720p: 1280x720 480p: 720x480 480 to 2K multiply factor: (1920/720) * (1080/480) = 6.0075 阅读全文
posted @ 2022-07-21 12:21 aspirs 阅读(10) 评论(0) 推荐(0) 编辑

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