t***s 发帖数: 4666 | 1 我家电视可以被chromecast waken up |
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s******n 发帖数: 876 | 2 very interesting. since spurious wakeups are always allowed for wait(), it
is not wrong that JVM decides to wake it up upon thread termination. this
cannot be a useful feature, nobody should sync on a thread object like you
did. probably for some historic reasons. |
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q*********u 发帖数: 280 | 3 其实是有这方面的应用的,比如
synchronized(this){
...
}
这种代码出现频率很高的。
看来如果是thread对象, 猜测那么jvm有这个特性,当线程结束,线程自己会自动
notify了
very interesting. since spurious wakeups are always allowed for wait(), it
is not wrong that JVM decides to wake it up upon thread termination. this
cannot be a useful feature, nobody should sync on a thread object like you
did. probably for some historic reasons. |
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m******t 发帖数: 2416 | 4 My kde 4.3 slows down and starts hogs up cpu after a few rounds of
hibernate and wakeup cycles. I hope they get that resolved in 4.4.
.3
is |
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f******e 发帖数: 106 | 5 拿来准备interview,windows平台。
谢谢。
不晓得这种interview要求怎么answer。我的理解的话,线程无非是在thread里面先
lock再unlock,中间可能加点别的来wakeup云云。socket反正还不是往一个东西里面
write,另外一个read...... |
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s********k 发帖数: 6180 | 6 wifi当然可以做sleep,只要和AP协议好,比如多少个beacon interval之后自动wakeup
接受信号。这是所有low power的基本策略。
另外wifi功耗高的话可以用zigbee,再说有了GPRS再有wifi实际上有点重叠,想必一个
low power的应用不会是data intensive的。主要应该是一些sensor的数据或者控制信
号吧,用zigbee不错 |
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d**o 发帖数: 864 | 7 我需要wifi,并且一直接收信号,绝对不能进入sleep,设计必须是这样的,具体原因没
办法说。是很奇怪的需求,所以也正是烦我的原因。wifi的耗电实在太大了。可以通过
设计精简的wifi module来省电,但难度和cost太高。
你说的这个low power的策略是可以给gprs的.
wakeup |
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