[English] Countable, uncountable nouns

countable nouns: (a) car, (a) man, (a) key, (a) house, (a) flower, (an) idea, (an) accident, (a) chair
– countable nouns는 singular ( = one) 혹은 plural ( = two or more)로 사용된다.

uncountable nouns:
* a glass of water
* some fresh air
* a bowl of rice
* some food
* some salt
* some plastic
* some money
* some music
* a game of tennis,
* a bar of soap
* a tube of toothpaste
* a piece of candy
* a carton of milk
* a can of fruit
* a cup of coffee, some coffee,
* a cup of tea
* a cup of juice
* a jar of honey
* a piece of wood

아래는 일반적으로 uncountable nouns로 쓰인다. ( = countable로 쓰일 때도 있다)
* a piece of paper: I need some paper / a piece of paper. I want to make a list.
* some advice: Can I talk to you? I need some advice. (not advices)
* some information: I need some information about hotels in Mexico City. (not informations)
* some weather: We are having nice weather this year.
* some news: Listen! I just got some good news. (not a good news)
* a loaf of bread: I’m going to buy some bread. (not a bread)
* long hair: She has very long hair. (not hairs)
* some furniture: They’ve got some very nice furniture in their house. (not furnitures)
* hard work: “Do you like your job?” “Yes, but it’s hard work.” (not a hard work)

  • uncountable nouns는 some, much 와 같은 것들과 쓴다.
    – I’ve got some money.
    – Money isn’t everything.
    – There isn’t much money in the box.

[Linux:Kernel] worker thread 의 work function 확인

https://lkml.org/lkml/2011/3/31/68 를 참고하면 된다.

첫번째 방법은 다음을 실행한 후

$ echo workqueue:workqueue_queue_work > /sys/kernel/debug/tracing/set_event

다음을 실행해서 trace 결과를 파일로 저장하는 것이다.

$ cat /sys/kernel/debug/tracing/trace_pipe > out.txt

파일로 저장하는 것은 android 에서 adb 를 이용한다면 다음과 같이 adb pull 로 /sys/kernel/debug/tracing/trace_pipe 를 가져오도록 해도 될 것이다.

adb pull /sys/kernel/debug/tracing/trace_pipe out.txt

두번째 방법은 해당 workqueue의 pid로 다음과 같이 얻어내는 것이다.

$ cat /proc/<pid>/stack