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Jan
12
comment What are functional unit and control logic of a cpu?
(2) Also by multithreading, the text actually means time-multiplex. Why replicating control logic is necessary for time-multiplex? Can't multiple threads share the same control units (fetch unit and decode unit) at different times?
Jan
12
comment What are functional unit and control logic of a cpu?
@slhck: My questions are more than what you thought. The text says superscalar architectures replicate the functional units, while multithreading replicates not only the functional units, but also the control logic. (1) But in figure 1.7(b), the superscalar one have multiple fetch and decode units besides multiple execute units, so I am not sure if "control logic == fetch and decode units" and "functional unit == execute unit".
Jan
12
revised What are functional unit and control logic of a cpu?
added 477 characters in body; edited tags
Jan
12
comment What are functional unit and control logic of a cpu?
Thanks. do you mean that you think that functional unit and execute unit the same thing in the book? (note that I am not sure about if execute unit and execution unit are the same). what about control logic?
Jan
12
comment What are functional unit and control logic of a cpu?
no it doesn't. can you tell me what they are?
Jan
12
asked What are functional unit and control logic of a cpu?
Jan
12
awarded  Socratic
Jan
11
asked Batch download multiple images after inspect elements in Chrome browser?
Jan
8
comment What manages IO between a buffer and a device?
Thanks. What does ""only give data to the requesting program if the I/O completes successfully" mean? What is the opposite of "only give data to the requesting program if the I/O completes successfully"?
Jan
8
awarded  Notable Question
Jan
7
asked What manages IO between a buffer and a device?
Jan
7
asked exiftool width and height of resized images not match the new sizes
Jan
4
comment What determines the page size and the cluster size?
@sawdust Thanks. (1) Wikipedia says "Page size is usually determined by processor architecture. " So is a memory's page size determined by the CPU? A memory may have different page sizes when it is used by different CPUs? (2) You said that MMU put constraints on page size, and if I am correct, MMU is part of a CPU, so is your reply consistent with Wikipedia? (3) Is the OS not involved in determining the page size?
Jan
3
asked Why isn't page used as the unit when calculating the maximum size of RAM a CPU can address?
Jan
3
asked Meaning of a block
Jan
1
comment Are the size of a memory page and the size of a file system cluster always the same?
@sawdust: is it always or almost always true that "The virtual memory manager will bypass the filesystem, and access the disk driver directly"?
Jan
1
asked What determines the page size and the cluster size?
Jan
1
comment Are the size of a memory page and the size of a file system cluster always the same?
Why "When everything is a power of two, that is fairly straightforward. "?
Jan
1
comment Are the size of a memory page and the size of a file system cluster always the same?
When they are not the same, is it necessary to deal with it?
Jan
1
asked Are the size of a memory page and the size of a file system cluster always the same?