MIT 6.828 JOS lab3 user environment with challenge: fast system call

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HawxChen

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Jul 24, 2012, 11:13:46 AM7/24/12
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Hi 眾版友,在下寫了關於lab3 的心得 亦附上相關的github links。
歡迎一同討論 :)

MIT Lab JOS lab3 user environment.

謝謝各位。

Ben6

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Jul 24, 2012, 11:02:06 PM7/24/12
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感謝分享,
FAST SYSTEM CALL,讚!

不過我有一個疑問題,如何知道與之前版本比較效能提升?

way

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Jul 24, 2012, 11:24:36 PM7/24/12
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 參考這篇??

tamlo...@gmail.com

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May 30, 2013, 2:38:52 AM5/30/13
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Hello! I want to know how to enter the QEMU  monitor? I have tried Ctrl + a + c, but it works just like Ctrl + c! Thanks!

在 2012年7月24日星期二UTC+8下午11时13分46秒,HawxChen写道:

way

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May 30, 2013, 3:13:11 AM5/30/13
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Ctrl +Alt+2 
Do you need this?


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lok tam

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May 31, 2013, 11:03:05 PM5/31/13
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However it seems not to work. After I type " make qemu" to start QEMU, it displays "K>" command prompt. Then I press Ctrl + Alt + 2 . But it doesn't turn into the monitor. 
It is said that "To enter the monitor, press Ctrl-a c in the terminal running QEMU. Press Ctrl-a c again to switch back to the serial console." on the lab tools guide page.
However it doesn't work.
So I can't enter the QEMU monitor now.
Any suggestions?


2013/5/30 way <wayl...@gmail.com>

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Chunis Deng

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May 31, 2013, 11:14:03 PM5/31/13
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Well, note this: "Press Ctrl-a c in the terminal running Qemu." Which means you can't swith with Qemu as the foreground window. You must switch to the terminal, then "Ctrl-a", then "c" to do the switch.
I've tried it and it works.


2013/6/1 lok tam <tamlo...@gmail.com>

lok tam

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Jun 2, 2013, 3:34:56 AM6/2/13
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Yes, it works! Thanks! I misunderstood "Ctrl-a c" before. I pressed Ctrl + a + c simultaneously. Thanks!


2013/6/1 Chunis Deng <chunc...@gmail.com>
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