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Record Nr. |
UNINA9910293149703321 |
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Autore |
Gough Corey |
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Titolo |
Energy Efficient Servers [[electronic resource] ] : Blueprints for Data Center Optimization / / by Corey Gough, Ian Steiner, Winston Saunders |
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Pubbl/distr/stampa |
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Springer Nature, 2015 |
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Berkeley, CA : , : Apress : , : Imprint : Apress, , 2015 |
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ISBN |
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Edizione |
[1st ed. 2015.] |
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Descrizione fisica |
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1 online resource (347 p.) |
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Collana |
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The Expert's Voice in Enterprise Computing and Power Management |
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Disciplina |
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Soggetti |
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Computer input-output equipment |
Computer organization |
Computers |
Hardware and Maker |
Computer Systems Organization and Communication Networks |
Information Systems and Communication Service |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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"The IT professional's operational handbook"--Cover. |
Includes index. |
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Nota di contenuto |
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Contents at a Glance; Chapter 1: Why Data Center Efficiency Matters; An Industry's Call to Action; Data Center Infrastructure Energy Use; Energy Proportional Server Efficiency; Regulatory Environment; Measuring Energy Efficiency; SPECPower; High Performance Computing Efficiency; Energy Efficiency and Cost; Summary; Chapter 2: CPU Power Management; Server CPU Architecture/Design; CPU Architecture Building Blocks; Threads, Cores, and Modules; Caches and the Cache Hierarchy; Dies and Packages; On-die Fabrics and the Uncore; Power Control Unit; External Communication; Thermal Design |
CPU Design Building BlocksDigital Synchronous Logic and Clocks; SRAM and eDRAM; I/O; Intel Server Processors; Introduction to Power; CPU Power Breakdown; Logic Power; I/O Power; Frequency, Voltage, and Temperature Interactions; Power-Saving Techniques; Turn It Off; Turn It Down; Power-Saving Strategies; Race to Idle vs. Slow Down; CPU |
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Power and Performance States; C-States; Thread C-States; Core C-States; Core C0; Core C1 and C1e; Core C3; Core C6; Core C7 (and up); C-State Demotion; Package C-States; Module C-States; P-States; Per Socket P-States; Per Core P-States; Uncore Frequency Scaling |
TurboTurbo Architecture; Power/Thermal Limits; Thermal Protection; Electrical Protection; C-States and Turbo; Fused Turbo Frequencies; T-States; S-States and G-States; S0i x; Running Average Power Limit (RAPL); IMON and Digital Power Meter; Linpack Example; DRAM (Memory) RAPL; CPU Thermal Management; Prochot; CPU Power Management Summary; Summary; Chapter 3: Memory and I/O Power Management; System Memory; Memory Architecture Basics; Devices and Ranks; Memory Error Correction (ECC); Memory Capacity; Device Power Characteristics; DDR3 vs. DDR4; RDIMMs, UDIMMs, SODIMMs, and LRDIMMs |
Memory Channel Interleave and Imbalanced Memory ConfigurationsPower and Performance States; CKE Power Savings; Self-Refresh; Voltage/Frequency; DDR Thermal Management; Monitoring Temperature; Memory Throttling; CPU DDRIO; Workload Behavior; Memory Reliability Features; CPU I/Os; CPU Interconnect; Link Power States; PCIe; Link Power States; Link Frequency/Voltage; Link Width; Hot Add; D-states; Summary; Chapter 4: Platform Power Management; Platform Overview; Common Platform Components; Integration; CPU Integration; Chipset Integration; Microservers and Server SoCs; Platform Manageability |
CPU SocketsNode Controllers; Memory Risers and Memory Buffer Chips; Server Chipsets; PCH and Platform Power Management; PCH Power Management; PCIe in Chipsets; PCH Thermal Management; Networking; Ambient Temperature, TDP, and Thermal Management; Attached Media; LAN Power Management Features; Media Speed; Energy Efficient Ethernet; Wake on LAN; Active State Power Management (ASPM); Interrupt Moderation; USB; Link Power States; Link Frequency/Voltage; Storage; Storage Servers and Power Management; HDDs and SDDs; SATA and SAS Drive Power Management; Frequency/Voltage; NVMe Drive Power Management |
Power Delivery |
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Sommario/riassunto |
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Energy Efficient Servers: Blueprints for Data Center Optimization introduces engineers and IT professionals to the power management technologies and techniques used in energy efficient servers. The book includes a deep examination of different features used in processors, memory, interconnects, I/O devices, and other platform components. It outlines the power and performance impact of these features and the role firmware and software play in initialization and control. Using examples from cloud, HPC, and enterprise environments, the book demonstrates how various power management technologies are utilized across a range of server utilization. It teaches the reader how to monitor, analyze, and optimize their environment to best suit their needs. It shares optimization techniques used by data center administrators and system optimization experts at the world’s most advanced data centers. |
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2. |
Record Nr. |
UNINA9910131366503321 |
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Autore |
Labadie Francine |
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Titolo |
Régulations du travail artistique / / Francine Labadie, François Rouet |
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Pubbl/distr/stampa |
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Paris, : Département des études, de la prospective et des statistiques, 2015 |
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ISBN |
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Descrizione fisica |
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1 online resource (20 p.) |
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Altri autori (Persone) |
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RouetFrançois |
ChantepiePhilippe |
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Soggetti |
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Art |
Sociology |
artistes |
régulation |
emploi culturel |
cadre juridique |
droit du travail |
C.D.D |
droits sociaux |
droits d'auteur |
droits patrimoniaux |
sécurité |
rémunération |
artists |
cultural employment |
regulation |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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L’économie de la création repose sur le travail artistique et le potentiel de renouvellement créatif des auteurs, artistes, créateurs. Or les conditions dans lesquelles les filières culturelles valorisent le travail artistique se trouvent remises en cause par les mutations sociales, |
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économiques et techniques. Au-delà de la reconfiguration des filières, ces évolutions viennent en particulier modifier les conditions dans lesquelles se rémunèrent les acteurs et s’articulent leurs prises de risques respectives. Cette nouvelle donne interroge le cadre juridique du travail de création constitué principalement par le droit social et le droit de la propriété littéraire et artistique. Le droit social, et particulièrement le droit du travail, ne semblent plus en capacité de jouer leur fonction par essence protectrice : l’équilibre recherché entre liberté du travail d’une part et sécurité d’autre part est ébranlé par la facilitation du recours au contrat à durée déterminée d’usage dans le droit positif ; par ailleurs l’instrumentalisation de l’assurance chômage ne règle pas de manière satisfaisante la couverture des périodes intertravail ; les disparités en termes de droits sociaux entre artistes salariés et artistes non salariés, pourtant en situation de dépendance économique, apparaissent de plus en plus injustifiées au regard des nouvelles conditions d’exercice professionnel ; la continuité des droits sociaux dans un système où se développe la pluriactivité n’est pas assurée. Du côté du droit de la propriété littéraire et artistique, la contractualisation dans un rapport de forces inégal entre les parties amène à s’interroger sur la manière dont les conditions de cession de droits patrimoniaux sont encadrées en ce qui concerne leur nature, leur étendue et leur durée ainsi que sur la rémunération d’exploitations secondaires de plus en plus nombreuses. Signe des limites de cet encadrement, les pratiques de forfaitisation de la rémunération se développent de manière… |
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