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Record W2164619256

Hardware bottleneck evaluation and analysis of a software PC-based router

2008· article· en· W2164619256 on OpenAlex
Qinghua Ye, M.H. MacGregor

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueInternational Symposium on Performance Evaluation of Computer and Telecommunication Systems · 2008
Typearticle
Languageen
FieldComputer Science
TopicSoftware-Defined Networks and 5G
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsComputer scienceGigabit EthernetRouterComputer networkForwarding planeNetwork packetEthernetBottleneckOperating systemEmbedded systemGigabitTelecommunications
DOInot available

Abstract

fetched live from OpenAlex

With its low cost, flexibility, and extensibility, software router based on commodity PC hardware and open-source operating systems is gaining more and more interest from both scientific researchers and small business users. It provides an opportunity to implement new router operations and modify or extend router functions to suit small business needs. However, software and hardware issues may affect the overall performance of a PC-based router. In this paper, we evaluate and analyze several potential hardware bottlenecks that may exist on a PC-based router by running different sets of click configurations. We found that, by applying polling extension of network driver and buffer recycling techniques, one moderate processor can forward as much as 1.5 M minimum-size packets per second, which satisfies the forwarding capabilities of multiple gigabit network ports on the same PCI-X bus. However, a gigabit network port cannot send the minimum-size Ethernet packets at full speed. In addition, for both the minimum-size and maximum-size Ethernet packets, the PCI bus is a potential bottleneck in the forwarding path. The reception and transmission capabilities of individual port as well as multiple ports on the same bus are correlated in a nonlinear way.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.002
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.225
Threshold uncertainty score0.707

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.042
GPT teacher head0.291
Teacher spread0.249 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it