efsf2012-whatsapp-scaling

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Performance Goals 1 Million connections per server … ! Resilience against disruptions under load Software failures Hardware failures (servers, network gear) World events (sports, earthquakes, etc.) 6
Performance Goals Our standard configuration Dual Westmere Hex-core (24 logical CPUs) 100GB RAM, SSD Dual NIC (user-facing, back-end/distribution) FreeBSD 8.3 OTP R14B03 7
Page 1 and 2: Scaling to Millions of Simultaneous
Page 3 and 4: Overview The “good problem to hav
Page 5: The Problem Initial server loading:
Page 9 and 10: Tools and Techniques Processor hard
Page 11 and 12: Tools and Techniques Synthetic work
Page 13 and 14: Tools and Techniques Diverted workl
Page 15 and 16: Results Continued attacking similar
Page 17 and 18: Results Still trying to obtain elus
Page 19 and 20: General Findings CPU% vs. # Conns 1
Page 21 and 22: Specific Scalability Fixes FreeBSD
Page 23 and 24: Specific Scalability Fixes BEAM met
Page 25 and 26: Specific Scalability Fixes BEAM tun
Page 27 and 28: Specific Scalability Fixes BEAM con
Page 29 and 30: Specific Scalability Fixes Erlang u
Page 31: Questions? Comments? rr@whatsapp.co

efsf2012-whatsapp-scaling

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