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DTSTAMP:20260730T152640Z
LOCATION:Exhibit Hall
DTSTART;TZID=America/Los_Angeles:20260728T175200
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UID:dac_DAC 2026_sess306_WIP3288@linklings.com
SUMMARY:Beyond Static Policies: Dynamic-PRAC for Balanced and Efficient Ro
 whammer Mitigation
DESCRIPTION:Jeonghyun Lee and Minwoo Ahn (Yonsei University), Jisung Park 
 (POSTECH (Pohang University of Science and Technology)), and Jinkyu Jeong 
 (Yonsei University)\n\nRowhammer attacks repeatedly activate DRAM rows and
  cause bit flips in adjacent rows. DDR5 introduced Per-Row Activation Coun
 ting (PRAC) to address this, but static thresholds and unnecessary distant
 -row refreshes limit its efficiency. This paper proposes Dynamic-PRAC, whi
 ch adapts mitigation thresholds based on service-queue utilization and ref
 ines refresh actions by row distance. Experiments show that Dynamic-PRAC i
 mproves performance over PRAC, MOAT, and QPRAC while lowering overhead. Se
 curity results further demonstrate the lowest unmitigated activation count
  and up to 73% reduced energy use, offering an efficient and balanced Rowh
 ammer mitigation mechanism.\n\nTrack: Student\n\n
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