پاورپوینت معماري کامپيوتر:pipeline

Laundry Example
Ann, Brian, Cathy, Dave each have one load of clothes to wash, dry, and fold
Washer takes 30 minutes Dryer takes 40 minutes “Folder” takes 20 minutes
Pipelining doesn’t help latency of single task, it helps throughput of entire workload
Pipeline rate limited by slowest pipeline stage
Multiple tasks operating simultaneously
32-bit fixed format instruction (3 formats)
Memory access only via load/store instructions
32 32-bit GPR
3-address, reg-reg arithmetic instruction; registers in same place
Structural hazards: HW cannot support this combination of instructions (single person to fold and put clothes away)
Data hazards: Instruction depends on result of prior instruction still in the pipeline (missing sock)
Control hazards: Caused by delay between the fetching of instructions and decisions about changes in control flow (branches and jumps).