Title :
Serializing instructions in system-intensive workloads: Amdahl’s Law strikes again
Author :
Wells, Philip M. ; Sohi, Gurindar S.
Author_Institution :
Comput. Sci. Dept., Univ. of Wisconsin-Madison, Madison, WI
Abstract :
Serializing instructions (SIs), such as writes to control registers, have many complex dependencies, and are difficult to execute out-of-order (OoO). To avoid unnecessary complexity, processors often serialize the pipeline to maintain sequential semantics for these instructions.
Keywords :
operating systems (computers); Amdahl Law; operating system; out-of-order; serializing instructions; system-intensive workloads; Computer aided instruction; Control systems; Instruction sets; Logic; Operating systems; Out of order; Parallel processing; Pipelines; Registers; Yarn;
Conference_Titel :
High Performance Computer Architecture, 2008. HPCA 2008. IEEE 14th International Symposium on
Conference_Location :
Salt Lake City, UT
Print_ISBN :
978-1-4244-2070-4
DOI :
10.1109/HPCA.2008.4658645
