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LOCATION:B305
DTSTART;TZID=America/New_York:20241118T140000
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UID:submissions.supercomputing.org_SC24_sess750_ws_indis113@linklings.com
SUMMARY:Recent Linux Improvements that Impact TCP Throughput: Insights fro
 m R&E Networks
DESCRIPTION:Marcos Schwarz (Rede Nacional de Ensino e Pesquisa); Brian Tie
 rney, Kiran Vasu, and Eli Dart (Energy Sciences Network (ESnet)); Christia
 n Rothenberg (Universidade Estadual de Campinas, Brazil); and Jeronimo Bez
 erra and Italo Valcy (Florida International University)\n\nThis paper revi
 ews recent enhancements to the Linux kernel that impact network throughput
 , and their potential impact on Data Transfer Node (DTN) performance. In p
 articular, we explore the benefits of MSG ZEROCOPY and BIG TCP in controll
 ed testbed environments at AmLight and ESnet. We compare performance on th
 ree different Linux kernel versions, on Intel vs AMD processors, and over 
 multiple round trip times. Our results indicates that MSG ZEROCOPY, in con
 junction with packet pacing, provides up to 35% improvement in throughput,
  and that Linux 6.8 provides an increase in throughput of up to 38% on WAN
  and 30% on LAN compared to the 5.15 kernel. We conclude with recommendati
 ons for both host benchmarking and production-ready DTN configurations.\n\
 nTag: Architecture, Data-Intensive, Network, Performance Optimization, Qua
 ntum Computing, Security, System Administration\n\nRegistration Category: 
 Workshop Reg Pass\n\nSession Chairs: Akbar Kara (Ciena Corporation, SCinet
 ); Anees Al-Najjar (Oak Ridge National Laboratory (ORNL), SCinet); and Nik
  Sultana (Illinois Institute of Technology, SCinet)\n\n
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