Optimizing the startup time of embedded systems: A case study of digital TV

Heeseung Jo, Hwanju Kim, Jinkyu Jeong, Joonwon Lee, Seungryoul Maeng

    Research output: Contribution to journalArticlepeer-review


    The demand for fast startup is mostly motivated by embedded systems, especially for home appliances such as digital TV. Though a new storage device such as a flash memory may help reduce the startup time, its applicability is limited to a small size application, which is not the case for recent media processing software consisting of millions lines of code. This paper proposes novel approaches to reduce the startup time of large embedded systems. The startup latency of a commercial digital TV is analyzed in order to marshal resource initialization and to warm up the buffer cache. Based on the analysis we propose a better initialization order and determine when data should be prefetched to the buffer cache in order to reduce the startup time, and which data. Our measurements show that our schemes reduce the total startup time by 35%1.

    Original languageEnglish
    Article number5373794
    Pages (from-to)2242-2247
    Number of pages6
    JournalIEEE Transactions on Consumer Electronics
    Issue number4
    Publication statusPublished - 2009 Nov

    Bibliographical note

    Funding Information:
    1This work was supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MEST) (No. 2009-0080381) and the MKE (Ministry of Knowledge Economy), Korea, under the ITRC (Information Technology Research Center) Support program supervised by the IITA (Institute of Information Technology Advancement) (IITA-2009-C1090-0902-0020). Heeseung Jo, Hwanju Kim, Jinkyu Jeong, and Seungryoul Maeng are with the Korea Advanced Institute of Science and Technology (KAIST) (e-mail: heesn@camars.kaist.ac.kr, hjukim@camars.kaist.ac.kr, jinkyu@camars.kaist. ac.kr, maeng@camars.kaist.ac.kr). Joonwon Lee (corresponding author) is with the Sungkyunkwan University (e-mail: joonwon@skku.edu). Contributed Paper Manuscript received October 7, 2009 0098 3063/09/$20.00 © 2009 IEEE

    All Science Journal Classification (ASJC) codes

    • Media Technology
    • Electrical and Electronic Engineering


    Dive into the research topics of 'Optimizing the startup time of embedded systems: A case study of digital TV'. Together they form a unique fingerprint.

    Cite this