e-journal

Restating the Case for Weighted-IPC Metrics to Evaluate Multiprogram Workload Performance

---

Weighted speedup is nowadays the most commonly used multiprogram workload performance metric. Weighted speedup is a weighted-IPC metric, i.e., the multiprogram IPC of each program is first weighted with its isolated IPC. Recently, Michaud questions the validity of weighted-IPC metrics by arguing that they are inconsistent and that weighted speedup favors unfairness [4]. Instead, he advocates using the arithmetic or harmonic mean of the raw IPC values of the programs in the
multiprogram workload.We show that weighted-IPC metrics are not inconsistent, and that weighted speedup is fair in giving equal importance to each program. We argue that, in contrast toraw-IPC metrics, weighted-IPC metrics have a system-level meaning, and that raw-IPC metrics are affected by the inherent behavior of the programs. We also show that the choice of a metric may adversely affect the conclusions from an experiment. We suggest to use two weighted-IPC metrics—system throughput (STP) and average normalized turnaround time (ANTT)—for evaluating multiprogram workload performance, and to avoid raw-IPC metrics.

---

Ketersediaan

Tidak ada salinan data

Informasi Detail

Judul Seri

COMPUTER ARCHITECTURE LETTERS, VOL. 13, NO. 2, JULY-DECEMBER 2014 93

No. Panggil

-

Penerbit

Sweden : IEEE Computer Architecture Letters., 2014

Deskripsi Fisik

IEEE COMPUTER ARCHITECTURE LETTERS, VOL. 13, NO. 2, JULY-DECEMBER 2014 93

Bahasa

English

ISBN/ISSN

Digital Object Ident

Klasifikasi

-

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

(2014), VOL. 13, NO. 2.

Subjek

ARSITEKTUR KOMPUTER

Info Detail Spesifik

-

Pernyataan Tanggungjawab

deliza

Versi lain/terkait

Lampiran Berkas

Komentar

---

Anda harus masuk sebelum memberikan komentar