How Storage Solutions Are Accelerating the Mobile Revolution Stephen Lum, Mobile Memory Product Marketing Hank Lai, Mobile Memory Product Planning Samsung Electronics, AHQ JEDEC Mobile Forum 2014 Copyright 2014 Samsung
Mobile Trend & 2014 Outlook Mobile Gadget Evolution Faster Connectivity Everything Connected New Killer Apps
Future Mobile Era - Data Explosion High storage growth expected in the future mobile era Mobile Traffic [PB/Month] IT Storage [ZB/Year] 1ZB=1Trillion Gigabytes 6000 30 5000 25 4000 3000 100X 20 15 2000 10 1000 5 0 2011 2012 0 2013 2014 Tablets 2015 2016 2020 Smart Phones 21X
Smartphone Adoption Continues to Grow Over 80% of world s population has a mobile phone But only ~1/4th of the world s population has a smartphone Smartphone adoption still has huge upside for global penetration
Tablet Growth Has Been Phenomenal Tablet shipments surpassed DT/NB PC s in Q4-12 < 3 Yrs from Intro! Large screen computing device demand is strong Mix favors Tablets, not PC s Sources: KPCB, Morgan Stanley Research, Gartner
Mobile Storage What s Needed? High Performance Efficiency/Responsiveness Instant Play Multi-tasking Multi-Processing Productivity Apps PC-like Gaming Fast App Loading/ App Swapping Low Power Longer Battery Life Quad/Octa-Core CPU Multi-tasking Larger screens AOAC Instant ON Security Reliability New Security Challenges Robust Memory Enterprise/BYOD Mobile Shopping High Capacity More Memory More Apps, Richer Apps HD Video, High Res Photos 3D Graphics/4K Content Small Package Thinner is Better High Capacity in Small Form Factor Small & Slim Pkg: Z-height is Key
UFS: Natural Migration for Mobile Evolution Higher Performance & Efficiency with lower total power Continued Scalability for future 1.2 GB/s Better, faster, scalable for future Higher efficiency UFS 2.x (tentative) 600 MB/s SCSI Based Async Protocol UFS 2.0 UFS 2.0 Good, sufficient performance, fuel-efficient 400 MB/s Memory Card Based Sync Protocol emmc5.0 emmc5.1 emmc4.5 emmc4.3 emmc4.4 emmc4.41 2009 2010 2011 2012 2013 2014 2015~16
Higher Performance, Better UX Mobile OS Storage Pattern Analysis x2 Random Write x3 x1 Seq. Write, 12% Rnd. Write, 18% Seq. Read, 28% emmc UFS Rnd. Read, 42% x1.5 x2.5 Source : Samsung Internal Research Source: Samsung CQ
Command Queue Improves UX Better Movie Playback - Play UHD movie while copying files - CQ reduces frame drops and improves playing time Reduced Apps Execution Time - Scan operation of vaccine program (V3, Naver) - Apps switching time Improve play time (25%) 15sec 10sec (Reduce 33%) Booting Time - Booting time reduced from power-on to entering lock screen Benchmark - Improved Random Read performance Improved 2.5x
Read While Write Performance w/ CMD Q CQ device shows shorter latency for Read Request during low priority writes For 512KB Request, 5.0CQ device is ~50% shorter than 5.0 For 3MB Request, 5.0CQ is ~30% shorter than 5.0
emmc CQ for Multi-thread thread S/W Multiple cores enable multiple threads.. Improved Playback while doing File Copy 5.0CQ driver passes priority to the device Reduced buffering improves play time 25% Reduced Application Load Time 5.0 5.0CQ CQ maximizes multi-core capability 1 Thread 4 Threads Improved random reads for more than 4 threads Reduced application load time by 33% (15s 10s)
emmc CQ, Performance Booster Smoother, UX improvements Internal File Copy 5.0 5.0 CQ [Time] App + USB Download Read Latency
UFS: Performance Improvement UFS is more than 2x faster in Random Read & Random Write Rnd. Write 18% Seq. Write 12% Rnd. Read 42% Seq. Read 28% 7.5 3.6 X2.5 X1.5 2.4 3.9 3.9 x3 Sequential Random
UFS G3x2L Vs. G3x1L Comparison G3x1L Vs. G3x2L Requirement for S/P Item G3x1L G3x2L Delta Bandwidth I/F Bandwidth 6Gbps 6Gbps x 2-1200MB/s Power (5us Peak) 450mA 600mA +40% Seq.R 400MB/s 700MB/s - 65% Seq.W 100MB/s 100MB/s 0 600MB/s 500MB/s Enough Speed Ran.R 20K 20K 0 200MB/s Ran.W 10K 10K 0 2013 2014 2015 2020 Year
UFS: Battery Life Improvement Battery life improves with faster estorage estorage is the slowest device in system Performance Bottleneck emmc Seq. Write 12% Rnd. Write 18% Seq. Read 28% emmc DRAM AP Rnd. Read 42% Samsung User Daily Workload Analysis UFS Sequential Read 1.5x Random Read 2x Power 1.5x System Total Power Save UFS DRAM AP
UFS: Evolution to Higher Efficiency Higher Performance w/ Higher Energy Efficiency 600MB/s
Summary Mobile industry seeking higher performance and energy efficiency The more functions in mobile devices, the higher requirements are needed emmc Command Queue is a high performing solution for current generation UFS is the Next Gen mobile storage solution, providing high performance, energy efficiency and scalability