Upload File

flashix - platformlab.stanford.edu · • nvm express (nvme) enables scalable and efficient access...

  • Home
  • Documents
  • FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s
40
FlashIX: High Performance Remote Flash Ana Klimovic Heiner Litz Christos Kozyrakis February 2, 2016

Upload: lyxuyen

Post on 30-Jun-2018

235 views

Category:

Documents


0 download

Report

TRANSCRIPT

Page 1: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

FlashIX:

HighPerformanceRemoteFlash

AnaKlimovicHeinerLitzChristosKozyrakis

February2,2016

Page 2: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

FlashinDatacenters

•  Flashisreplacingharddrives–  1000xhigherthroughput,20xlowerlatency–  GBand$areapproachingparity

•  NVMExpress(NVMe)enablesscalableandefficientaccesstohigh-performanceFlash:–  Lowlatency:10sofµs–  Highthroughput:100,000sofIOPS–  MulX-queueinterface–  Event-based,non-blocking

Page 3: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

AccessingFlash

•  LocalPCIeaccessvs.remoteaccessovernetwork

3

Page 4: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

WhyremoteFlash?

4

Page 5: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

ResourceDisaggregaXon

•  ApplicaXonshavedifferentstorageneeds

•  RemoteaccesstodisaggregatedFlashenablesindependentandelasXcresourcescaling

•  ImproveresourceuXlizaXon

5

Page 6: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

ServerResourceUXlizaXon•  FlashandCPUuXlizaXonvaryoverXmeandscaleseparately.

6DatasampledfromFacebookservershos7ngaFlash-basedKVSservice.

uXlizaXon

Page 7: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

ServerResourceUXlizaXon•  FlashandCPUuXlizaXonvaryoverXmeandscaleseparately.

7DatasampledfromFacebookservershos7ngaFlash-basedKVSservice.

FlashandCPUuXlizaXonvarywithseparatetrends

uXlizaXon

Imbalancedresourceu7liza7on

Page 8: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

ServerResourceUXlizaXon•  FlashandCPUuXlizaXonvaryoverXmeandscaleseparately.

8DatasampledfromFacebookservershos7ngaFlash-basedKVSservice.

FlashisoverprovisionedforlongperiodsofXme

uXlizaXon

Imbalancedresourceu7liza7on

Page 9: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

ResourceDisaggregaXon•  ApplicaXonshavedifferentstorageneeds

•  RemoteaccesstodisaggregatedFlash:EnablesindependentandelasXcresourcescalingIncreasesHWuXlizaXon,decreasesfragmentaXonCentralizedsnapshodng,checkpoinXngIncreasesparallelism,striping,RAIDDecreasesstoragecosts

•  Successfulapproachforharddrives(SANs)

9

Page 10: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

RemoteFlashOverhead•  iSCSInetworkstorageprotocolisCPU-intensive

10

0

200

400

600

800

1000

0 50 100 150 200 250 300 350

Read

Laten

cy(u

s)

IOPS Thousands

4kBrandread

Linux-local-p99Linux-iSCSI-p99

75%throughputdrop

3xlatency

Page 11: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

RemoteFlashCost

11

0

50

100

150

200

250

300

0 2 4 6 8 10

PeakIO

PS Thou

sand

s

#CPUcoresonFlashserver

4kBrandread

local

•  MoreservercoresandclientconnecXonsàmoreIOPS•  Cost=#coresonserverneedforprotocolprocessing

1clientconn,1servercore

Page 12: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

RemoteFlashCost

12

0

50

100

150

200

250

300

0 2 4 6 8 10

PeakIO

PS Thou

sand

s

#CPUcoresonFlashserver

4kBrandread

local

10conns

•  MoreservercoresandclientconnecXonsàmoreIOPS•  Cost=#coresonserverneedforprotocolprocessing

Page 13: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

RemoteFlashRequirements

1.Highperformance(atthetail)2.IsolaXonandresourcemanagement(useOS)3.Lowcost(usecommodityHW)

13

Page 14: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

TradiXonalApproaches

14

Performance ProtecDon/IsolaDon Cost

Linux+iSCSI+CommodityEthernet

Linux+RDMA

User-level+CommodityEthernet(ex:mTCP)

Page 15: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

TradiXonalApproaches

15

Performance ProtecDon/IsolaDon Cost

Linux+iSCSI+CommodityEthernet X √ √Linux+RDMA √ √ XUser-level+CommodityEthernet(ex:mTCP) √ X √

Page 16: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

TradiXonalApproaches

16

Performance ProtecDon/IsolaDon Cost

Linux+iSCSI+CommodityEthernet X √ √Linux+RDMA √ √ XUser-level+CommodityEthernet(ex:mTCP) √ X √FlashIX+CommodityEthernet √ √ √

Page 17: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

HowshouldwearchitecttheoperaXngsystemforhighperformancestorageI/O?

17

Page 18: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

1.  Dataplane–  Highperformancedatapath

2.  Controlplane–  Resourcemanagement:Cores,Eth,Flash–  StoragecapacityallocaXon–  QualityofService

18

FlashIXDesign

Page 19: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

FlashIXArchitecture

Linuxkernel

FlashIXControlPlane

RXTX

CQSQ

RXTX

CQSQ

Ring3

GuestRing0

HostRing0

FlashIX FlashIX

Core Core Core Core

Dune

libIX libIX

AppA AppB

19

Page 20: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

FlashIXArchitecture

Linuxkernel

FlashIXControlPlane

RXTX

CQSQ

RXTX

CQSQ

Ring3

GuestRing0

HostRing0

FlashIX FlashIX

Core Core Core Core

Dune

libIX libIX

AppA AppB

20

Page 21: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

ExecuXonModel

Event-drivenapp

libIX

RX

TCP/IP

EventCondiXons

BatchedSyscalls

Ring3

GuestRing0

NVMe TCP/IP

NVMe

CQ SQ

FlashDevice

Re-order

21

TX

FlashIX

Page 22: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

ExecuXonModel

FlashcachedServer

libIX

RX

TCP/IP

EventCondiXons

BatchedSyscalls

Ring3

GuestRing0

NVMe TCP/IP

NVMe

CQ SQ

FlashDevice

Re-order

22

TX1

ReceivePUTRequest

Page 23: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

ExecuXonModel

FlashcachedServer

libIX

RX

TCP/IP

EventCondiXons

BatchedSyscalls

Ring3

GuestRing0

NVMe TCP/IP

NVMe

CQ SQ

FlashDevice

Re-order

23

TX

EventtriggersRX-ReceiveCallback2

Page 24: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

ExecuXonModel

RX

TCP/IP

EventCondiXons

BatchedSyscalls

Ring3

GuestRing0

NVMe TCP/IP

NVMe

CQ SQ

FlashDevice

Re-order

24

TX

WriteSyscallFlashcachedServer

libIX

3

Page 25: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

ExecuXonModel

FlashcachedServer

libIX

RX

TCP/IP

EventCondiXons

BatchedSyscalls

Ring3

GuestRing0

NVMe TCP/IP

NVMe

CQ SQ

FlashDevice

Re-order

25

TX

NVMEWrite

4

Page 26: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

ExecuXonModel

FlashcachedServer

libIX

RX

TCP/IP

EventCondiXons

BatchedSyscalls

Ring3

GuestRing0

NVMe TCP/IP

NVMe

CQ SQ

FlashDevice

Re-order

26

TX

NVMECompleXon5

Page 27: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

ExecuXonModel

FlashcachedServer

libIX

RX

TCP/IP

EventCondiXons

BatchedSyscalls

Ring3

GuestRing0

NVMe TCP/IP

NVMe

CQ SQ

FlashDevice

Re-order

27

TX

NVMECompleXonEvent6

Page 28: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

ExecuXonModel

FlashcachedServer

libIX

RX

TCP/IP

EventCondiXons

BatchedSyscalls

Ring3

GuestRing0

NVMe TCP/IP

NVMe

CQ SQ

FlashDevice

Re-order

28

TX

SendTCPSyscall7

Page 29: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

ExecuXonModel

FlashcachedServer

libIX

RX

TCP/IP

EventCondiXons

BatchedSyscalls

Ring3

GuestRing0

NVMe TCP/IP

NVMe

CQ SQ

FlashDevice

Re-order

29

TX

SendPUTACK8

Page 30: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

ExecuXonModel

Event-drivenapp

libIX

RX

TCP/IP

EventCondiXons

BatchedSyscalls

Ring3

GuestRing0

NVMe TCP/IP

NVMe

CQ SQ

Re-order

30

1.  Event-DrivenAPI:-Supports100,000’sofRequests-1threadpercore-1000’sconnecXonsperthread

TX

FlashDevice

Page 31: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

ExecuXonModel

Event-drivenapp

libIX

RX

TCP/IP

EventCondiXons

BatchedSyscalls

Ring3

GuestRing0

NVMe TCP/IP

NVMe

CQ SQ

Re-order

31

2.ProcesstoCompleXon

TX

FlashDevice

Page 32: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

ExecuXonModel

Event-drivenapp

libIX

RX

TCP/IP

EventCondiXons

BatchedSyscalls

Ring3

GuestRing0

NVMe TCP/IP

NVMe

CQ SQ

Re-order

32

3.Zero-Copy:RDMAlikeperformance

TX

FlashDevice

Page 33: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

ExecuXonModel

Event-drivenapp

libIX

RX TX

TCP/IP

EventCondiXons

BatchedSyscalls

Ring3

GuestRing0

NVMe TCP/IP

NVMe

CQ SQ

Re-order

33

4.OnequeueperconnecXon-AvoidsHOLblocking-  QoS-  Scheduling

FlashDevice

Page 34: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

EvaluaXonMethodology

•  Flashcached:PersistentKV-StoreapplicaXon– 4KBvalues– Memcachedbinaryprotocol– MuXlateloadgeneratorclients

•  [email protected]•  Intel750PCIeFlashSSD•  Intelx52010GbE

34

Page 35: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

FlashIXPerformance

35

0

200

400

600

800

1000

0 100 200 300 400 500

Read

Laten

cy(u

s)

IOPS Thousands

4kBrandread–1ServerThread

Linux-local-p99

SPDK-local-p99

Linux-iSCSI-p99

•  BaselineLinuxanduser-spaceSPDKperformance

Page 36: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

FlashIXPerformance

36

0

200

400

600

800

1000

0 100 200 300 400 500

Read

Laten

cy(u

s)

IOPS Thousands

4kBrandread–1ServerThread

Linux-local-p99

SPDK-local-p99

Linux-iSCSI-p99

FlashIX

•  RemoteFlashwithFlashIX~=localFlashwithLinux

Page 37: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

FlashIXPerformance

37

•  RemoteFlashwithFlashIX~=localFlashwithLinux

0

200

400

600

800

1000

0 100 200 300 400 500

Read

Laten

cy(u

s)

IOPS Thousands

4kBrandread–1ServerThread

Linux-local-p99

SPDK-local-p99

Linux-iSCSI-p99

FlashIX

Page 38: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

FlashIXPerformance

38

•  RemoteFlashwithFlashIX~=localFlashwithLinux

4KB*300KIOPS=10Gbit/s

0

200

400

600

800

1000

0 100 200 300 400 500

Read

Laten

cy(u

s)

IOPS Thousands

4kBrandread–1ServerThread

Linux-local-p99

SPDK-local-p99

Linux-iSCSI-p99

FlashIX

Page 39: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

FutureWork

•  RemoveNICBorleneckà2x10GbE•  UXlizenewSamsungSSDs•  WhatAPIshouldweexposetoapplicaXons?–  Blocklevel?Filesystem?–  Localvs.remotestorageAPI?

•  ApplicaXonsanduse-casesforflashstorage–  Latency-sensiXve– Highthroughput(saturatelocalPCIeFlashIOPS)–  Scaleout

39

Page 40: FlashIX - platformlab.stanford.edu · • NVM Express (NVMe) enables scalable and efficient access to high-performance Flash: – Low latency: 10s of µs – High throughput: 100,000s

Conclusion

•  Remote≈localFlashaccesslatency•  RequiresrethinkingoftheOS&storageSWstack•  FlashIXisastoragedataplaneOSdesignedfor:– LowtaillatencyandhighthroughputaccesstoFlashovercommodity10GbEthernet

–  IsolaXonandresourcemanagement

•  EnablesstoragedisaggregaXonforFlash

40


INTERNATIONAL TELECOMMUNICATION UNION!PDF-A.pdf · µs 112,00-95,20 µs 140 126 119 µs 160 144 136 µs 186,6 168 158,6 µs 224 201,6 190,4 µs 4578,69-589,68 1k µs 224,00-184,80

Capítulo 4 TiristoresTiristores Tipos de tiristores -SCR Fig. 4.11 – Tiristor (moderno) com amplificação de gatilho. • Alto dv/dt (1000V/ µs) • Alto di/dt (500A/ µs) •

INTERNATIONAL TELECOMMUNICATION UNION - ITU: …!PDF... · BR BS BT + ) F M P RA 0 RS S SA ... Hz 1 116. 3 ITU-R BT.2016 1 oi ... (2k) µs 224 3(4k) µs 448 (8k) μs 896 7 µs 31

STUDI KARAKTERISTIK TRANSIEN ARRESTER PADA TEGANGAN ...digilib.its.ac.id/public/ITS-Undergraduate-31971-Paper-1495532.pdf · gelombang 0,5/1 µs dan 8/20 µs, sedangkan arus impuls

Natural ITD statistics predict human auditory spatial perception-500 500 ITD (µs) 1 ms intrauricular microphone-15º B. D. ITD (µs) ITDv (µs) Azimuth (deg) ITD mean and standard

Netflix's scalable container Elastic resource scheduling ...platformlab.stanford.edu/Seminar Talks/Netflix_seminar.pdf · Elastic resource scheduling for Netflix's scalable container

Key features Dimensions · 2015. 1. 21. · Electronic Shutter 1/50s~1/ 100,000s 1/60s~1/ 100,000s Video Frame Rate 720P@25 fps 720P@30 fps Synchronization Internal Min. Illumination

LT6015//LT6016/LT6017 - 3.2MHz, 0.8V/µs Low Power, Over ... · LT6015/LT6016/LT6017 1 601567ff For more information Typical applicaTion FeaTures DescripTion 3.2MHz, 0.8V/µs Low

LT1815/LT1816/LT1817 - Single/Dual/Quad 220MHz, 1500V/µs

Data Driven Networks - platformlab.stanford.edu · • Understand how known network input variables affect network KPI (e.g throughput) ... Mobile Network Visibility Dynamic Network

Scalable Control Plane Substrate - platformlab.stanford.edu · MoEvaon • Separaon of control plane is a common trend: networks/systems – Challenging to design, hard requirements

IS 7098-3 (1993): Cross-linked polyethylene …'The impulse wave form shall have a virtual front time between 1 µs and 5 µs and a nominal time to half the peak value between 40 µs

HI 4521 & HI 4522...0,001 µS/cm 0,01 µS/cm 0,01 µS/cm Aufkisung 0,001 mS/cm 0,01 mS/cm 0,1 mS/cm Leitfähigkeit Genauigkeit " 1 /0 del Anzeige ("0,01 µS/cm) Zellkonstante 0,0500

GPUDirect RDMA and Green Multi-GPU Architectures · Frontend Ingest DMA Size DMA latency (µs) DMA throughput (MB/s) no RDMA with RDMA Δ 16 KB ↓65.06 µs 4.09 µs 15.9X 32 KB 77.38

MXD70 SERIES - LTH · 5 Range & Sensor Compatibility Tables CONDUCTIVITY RANGE NOMINAL CELL CONSTANT 0.0101.00010.00 0.100 0 to 9.999 µS/cm 0 to 99.99 µS/cm

Smoke-Free Multi-Unit Housing: 0 to 100,000s in 5 Years Quebec City, Quebec April 30, 2009

Flash, NVME, мультиоблака– технологии будущего в · ~ 10 ms ~ 25 µs ~ 10 µs HDD ~ 80 µs ~ 20 µs ~ 10 µs SAS TLC NAND SSD ~ 80 µs ~ 5 µs NVME

IMPULSE, POWER CONTACT & INDUCTION Surge and Telecom … · Lightning Impulse 1.2/50 µs › IEC 60060-1 › IEC 61180-1 › IEC 61180-2 › IEC 60335-1 CWG 1.2/50 µs 8/20 µs ›

LASER MEGAJOULE TIMING SYSTEM · - 10 ms : PEPC preionization - 450 µs : Flash lamps preionization . End of . Alignment -15 mn -1s -1 ms -1 µs -10ns . 0 . 1 µs . 1 ms10ns. 1s

±0.1°C Accuracy, 16-Bit, Digital I2C Temperature …...SU:DAT 0.02 µs Setup Time (Stop Condition) t SU:STO 0.6 µs Data Hold Time (Master) t HD:DAT 0.03 µs Bus Free Time (Between

LOTIS-TII Nd:YAG lasersmtinstruments.com/wp-content/uploads/2017/08/LIBSPIV.pdfDelay between laser pulses** 1 µs - 50 ms 1 µs - 100 ms 0-80 µs Jitter***, ns Energy stability at

10 A - 410 V internally clamped IGBT · 2021. 7. 19. · 2.7 9.2 2.8 µs µs µs µs Table 8. Switching energy (inductive load) Symbol Parameter Test conditions Min. Typ. Max. Unit

Conductive Multilevel Sensor · minimum conductivity con min: 1/100 kOhm = 10 µS specific minimum conductivity of the medium: con min (µS) x K (1/cm) = 10 µS x 1,5 / cm = 15 µS/cm

(1) NMR spectroscopy ( µs, native environment, atomic

W16 WLA16P-24162100A00, Product data sheet...WLA16P-24162100A00 | W16 SMALL PHOTOELECTRIC SENSORS IOL: 750 µs 3)Repeatability SIO Direct: 150 µs 1)SIO Logic: 300 µs 2)IOL: 750 µs

Qh êRÕ ý µS j ([¶^u() O u( ªf føwonder.com.tw › download › pdf › SA-B01M說明書.pdf · O u( ªf 1.\ e*bÌ IrG ÝQe µS hv0 2.\ b@g gPe } Ïn,_ e>Qe µS hv0 3.\ µS

Dual LNB power supply based on the LNBH24L supply and ......interface TEN bit. The rise and fall edges are controlled to be in the 5 µs to 15 µs range, 8 µs typ for 22 kHz. The

[email protected] Google Platforms/Network Infrastructure ...platformlab.stanford.edu/Presentations/Jeff_Mogul.pdfRepresenting network-management data We try to limit the number of

FM24C512D 2-Wire Serial EEPROMeng.fmsh.com/nvm/FM24C512D_ds_eng.pdfBHD.STA B Start Hold Time 0.6 µs t BSU.STA B Start Setup Time 0.6 µs t HD.DAT B Data In Hold Time 0 µs t BSU.DAT

New W16 WSE16P-1H162100A00, Tuotetietolehtinen · 2020. 8. 27. · WSE16P-1H162100A00 | W16 PIENOISVALOKENNOT SIO Logic: 600 µs 2) IOL: 750 µs 3) Toistotarkkuus SIO Direct: 150

Complete, Quad, 12-/14-/16-Bit, Serial Input, …20 V step to ±0.03 % FSR 7.5 8.5 µs 10 V step to ±0.03 % FSR 5 µs 512 LSB step settling (16-bit resolution) Slew Rate 3.5 V/µs

MS4515DOMinimum SCL clock low width @1 tLOW 0.6 µs Minimum SCL clock high width @1 tHIGH 0.6 µs Clock Edge to data transition tCLKD 0 0.1 µs Rise of SS relative to last clock edge

sûµñ¶¢À±µS¿hÇmadhwapracharavedike.weebly.com/uploads/4/7/5/5/4755491/... · 2018-09-06 · sûµñ¶¢À±µS¿hÇ Telugu Transliteration by M. Pramod Page 1 sûµñ¶¢À±µS¿hÇ

Rearchitecting Linux Storage Stack for µs Latency and High

汎用 シリアル EEPROM シリーズ EEPROM I2C BUS ... › jp › products › ...0.1 - 0.9 µs 出力データホールド時間 t DH 0.1 - - µs ストップコンディションセットアップ時間