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Is it possible?

Is it possible?# Unix - 噫吁兮，危乎高哉

h*n2000-12-02 08:12

1 楼

I found the computers in our open lab have more than 2GByte memory.
Is it possible? The computers are Sun ULTRA 10.
I used malloc(1024*1024*1024) twice and the pointer returned is not 0.
And third time it returned 0.
Can I belive that?

m*m2000-12-02 08:12

2 楼

This is virtual memory is OS. They are paged in/out between
main memory
and secondary storage (hard drive). Refer to your favorite
OS books.

【在 h****n 的大作中提到】

: I found the computers in our open lab have more than 2GByte memory.
: Is it possible? The computers are Sun ULTRA 10.
: I used malloc(1024*1024*1024) twice and the pointer returned is not 0.
: And third time it returned 0.
: Can I belive that?

a*f2000-12-02 08:12

3 楼

I guess these computers have 512KB phisical memory at least. It is more
possible that they have 1GB memory installed.
As a user, you definitely have 2GB memory to use.

【在 m*******m 的大作中提到】

: This is virtual memory is OS. They are paged in/out between
: main memory
: and secondary storage (hard drive). Refer to your favorite
: OS books.