Why fork() copy all data the same as parent?
In my understanding, fork() will copy all data to its child, only different is PID.
It is strange to me when we want to run a new program, we want a new resource, ex: new free memory space, new execution code ....etc.
why do we need to copy a totally different process then start (exec) our new program?
kernel
asked 2 mins ago
MarkMark
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add a comment |
In my understanding, fork() will copy all data to its child, only different is PID.
It is strange to me when we want to run a new program, we want a new resource, ex: new free memory space, new execution code ....etc.
why do we need to copy a totally different process then start (exec) our new program?
kernel
asked 2 mins ago
MarkMark
956
add a comment |
In my understanding, fork() will copy all data to its child, only different is PID.
It is strange to me when we want to run a new program, we want a new resource, ex: new free memory space, new execution code ....etc.
why do we need to copy a totally different process then start (exec) our new program?
kernel
asked 2 mins ago
MarkMark
956
In my understanding, fork() will copy all data to its child, only different is PID.
It is strange to me when we want to run a new program, we want a new resource, ex: new free memory space, new execution code ....etc.
why do we need to copy a totally different process then start (exec) our new program?
kernel
kernel
asked 2 mins ago
MarkMark
956
asked 2 mins ago
MarkMark
956
asked 2 mins ago
MarkMark
956
asked 2 mins ago
MarkMark
956
asked 2 mins ago
MarkMark
956
956
add a comment |
add a comment |
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