DC Field | Value | Language |
---|---|---|
dc.contributor.author | Alian, Mohammad | ko |
dc.contributor.author | Yuan, Yifan | ko |
dc.contributor.author | Zhang, Jie | ko |
dc.contributor.author | Wang, Ren | ko |
dc.contributor.author | Jung, Myoungsoo | ko |
dc.contributor.author | Kim, Nam Sung | ko |
dc.date.accessioned | 2020-12-15T22:50:15Z | - |
dc.date.available | 2020-12-15T22:50:15Z | - |
dc.date.created | 2020-12-15 | - |
dc.date.created | 2020-12-15 | - |
dc.date.issued | 2020-08-25 | - |
dc.identifier.citation | IEEE International Symposium on Performance Analysis of Systems and Software, ISPASS 2020, pp.160 - 169 | - |
dc.identifier.uri | http://hdl.handle.net/10203/278515 | - |
dc.description.abstract | I/O performance plays a critical role in the overall performance of modern servers. The emergence of ultra high-speed I/O devices makes the data movement between processors, main memory, and devices a major performance bottleneck. Conventionally, the main memory is used as an intermediate buffer between the processor and I/O devices and I/O devices cannot directly access processor side caches. Data Direct I/O (DDIO) technology aims to reduce the memory bandwidth utilization by enabling the I/O devices to leverage Last Level Cache (LLC) as the intermediate buffer. Our experimental results show that DDIO can completely eliminate memory bandwidth utilization while running network-or storage-intensive applications. However, when modeling the I/O subsystem using architectural simulators, DDIO is often ignored, which can result in inaccurate assessments about the I/O and memory sub system of emerging and future large-scale computer systems. In this paper, we provide a detailed background on DDIO technology in Intel server processors. Then we present our cycle-accurate I/O subsystem model in gem5 simulator that can be configured to model DDIO. We verify our model against baseline gem5 and validate it by comparing its results against a physical computer system. | - |
dc.language | English | - |
dc.publisher | Institute of Electrical and Electronics Engineers Inc. | - |
dc.title | Data Direct I/O Characterization for Future I/O System Exploration | - |
dc.type | Conference | - |
dc.identifier.wosid | 000637280800020 | - |
dc.identifier.scopusid | 2-s2.0-85091951755 | - |
dc.type.rims | CONF | - |
dc.citation.beginningpage | 160 | - |
dc.citation.endingpage | 169 | - |
dc.citation.publicationname | IEEE International Symposium on Performance Analysis of Systems and Software, ISPASS 2020 | - |
dc.identifier.conferencecountry | US | - |
dc.identifier.conferencelocation | Virtual | - |
dc.identifier.doi | 10.1109/ISPASS48437.2020.00031 | - |
dc.contributor.localauthor | Jung, Myoungsoo | - |
dc.contributor.nonIdAuthor | Alian, Mohammad | - |
dc.contributor.nonIdAuthor | Yuan, Yifan | - |
dc.contributor.nonIdAuthor | Zhang, Jie | - |
dc.contributor.nonIdAuthor | Wang, Ren | - |
dc.contributor.nonIdAuthor | Kim, Nam Sung | - |
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