Messages in this thread | | | From | Bernd Eckenfels <> | Subject | unfair stress on non memory allocating apps while swapout (in 2.4) | Date | Sun, 15 Oct 2000 06:16:26 +0200 |
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Hello,
with 2.4.0-test10-pre2 (possibly long before that version) i still can bring the system to a halt while "tail /dev/zero" is running. I don't complain that you can make a DOS by a trshing system, cause I can use ulimit to actually avoid that.
But if i use the tail /dev/zero with nice as a normal user i can see my memory fill u until all free pages are used (i can see that in iostat and even in some nifty graphical process mons) and immediatelly in the same second the system starts to swap out everything is locked rock solid. vmstat is not printing out any line, x freezes dad and in the console i wont get a response from the shell on pressing enter. Of course this only takes as long as the proccess is killed. But still i wonder why the swap out is such unfair to the rest of the system, especially to a process which is not actually allocating memory at all.
Greetings Bernd - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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