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Transcript of Increasing Video Recording Speed
Flash Memory Summit 2015Santa Clara, CA 1
THE IMPACT OF FILE SYSTEMS
YONGJUN ZOUBusiness Development Manager, Tuxera Inc.
Increasing Video Recording Speed
FACTORS AFEECT OVERALL VIDEO RECORDING PERFORMANCE
Flash Memory Summit 2015Santa Clara, CA 2
Optimizing software for the best possible performance
Flash Memory FILE SYSTEMSController Firmware
OVERALL PERFORMANCE
TEST ENVIROMENT INTRODUCTION
Flash Memory Summit 2015Santa Clara, CA
RECORDING
From left to right:• Samsung Pro 64GB• Toshiba Exceria Pro UHS-II 32GB
TEST ENVIRONMENT
TEST RESULT: 4-STREAM VIDEO RECORDING
Flash Memory Summit 2015Santa Clara, CA
Hardware setup: • IP Camera (ARM
Cortex A9 Dual Core)• Samsung Pro 64GB
UHS-I microSDXCCard
0
1
2
3
4
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9
60 120 180 240 300
Writ
e sp
eed
(MB
/s)
Total amount written (GB)
VFAT stream 1VFAT stream 2VFAT stream 3VFAT stream 4
Tuxera exFAT stream 1Tuxera exFAT stream 2Tuxera exFAT stream 3Tuxera exFAT stream 4
Open source exFAT stream 1Open source exFAT stream 2Open source exFAT stream 3Open source exFAT stream 4
Tests with Open Source exFAT and VFAT were terminated after 5 hours writing 178GB of data (open source exFAT) and 91GB(VFAT). Tuxera exFAT wrote over 316GB of data in just 4.5 hours.
TEST RESULT: 2-STREAM VIDEO RECORDING
Flash Memory Summit 2015Santa Clara, CA
0
10
20
30
40
50
60
70
29 58 87 116 145
Writ
e sp
eed
(MB
/s)
Total amount written (GB)
H.265/HEVC 4K UHD speed (17.7 MB/s)
VFAT stream 1VFAT stream 2
Tuxera exFAT stream 1Tuxera exFAT stream 2
Open source exFAT stream 1Open source exFAT stream 2
Hardware setup: • X86+Linux device• Toshiba Exceria
Pro 32GB UHS-II SDHC Card
FILE SYSTEM IMPACTS
Flash Memory Summit 2015Santa Clara, CA
Right file system implementations bring significant better video recording experience.
PERFORMANCE (Speed & CPU)
FLASH MEMORY LIFETIME
RELIABILITY
SUSTAINABILITY (File system fragmentation)
POWERED BY
TUXERA ECOSYSTEM: FLASH MEMORY PARTNERS
Flash Memory Summit 2015Santa Clara, CA
TUXERA FAIL-SAFE TECHNOLOGY DEMO @SDA
Flash Memory Summit 2015Santa Clara, CA
August 12-13thSD AssociationBooth Number 119
Flash Memory Summit 2015Santa Clara, CA
THANK YOU!
www.tuxera.com