{"id":135788,"date":"2025-06-04T09:05:06","date_gmt":"2025-06-04T07:05:08","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/sravnenie-proizvoditelnosti-subd-valkey-i-redis"},"modified":"2025-06-04T09:05:06","modified_gmt":"2025-06-04T07:05:08","slug":"sravnenie-proizvoditelnosti-subd-valkey-i-redis","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/sravnenie-proizvoditelnosti-subd-valkey-i-redis","title":{"rendered":"Por\u00f3wnanie wydajno\u015bci baz danych Valkey i Redis","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Zaprezentowane wyniki testowania \u015bwie\u017cych wyda\u0144 baz danych Redis 8.0 i Valkey 8.1, w kt\u00f3rych og\u0142oszono istotne optymalizacje wydajno\u015bci. We wszystkich przeprowadzonych testach fork rozwijany przez spo\u0142eczno\u015b\u0107 przewy\u017cszy\u0142 oryginalny projekt, g\u0142\u00f3wnie dzi\u0119ki wprowadzeniu w Valkey nowego mechanizmu do wielow\u0105tkowego zarz\u0105dzania wej\u015bciem\/wyj\u015bciem w trybie asynchronicznym, przekazanego projektowi przez firm\u0119 Amazon. <\/p>\n

W testowym \u015brodowisku AWS Graviton4 c8g.2xlarge z 8 VCPU w Valkey 8.1.1 uda\u0142o si\u0119 osi\u0105gn\u0105\u0107 wydajno\u015b\u0107 999.8 tysi\u0119cy zapyta\u0144 SET na sekund\u0119, podczas gdy w Redis 8.0 osi\u0105gni\u0119to poziom 729.4 tysi\u0119cy zapyta\u0144 na sekund\u0119. W og\u00f3lnym rozrachunku przezroczysto\u015b\u0107 Valkey okaza\u0142a si\u0119 wy\u017csza od Redis o 37% dla operacji SET i o 16% dla GET. W por\u00f3wnaniu z Redis projekt Valkey wykaza\u0142 r\u00f3wnie\u017c 30% spadek op\u00f3\u017anie\u0144 w obs\u0142udze zapyta\u0144 dla operacji SET oraz 60% dla operacji GET.

\"Por\u00f3wnanie<\/center> <\/p>\n

Osobno przeprowadzono analiz\u0119 zmiany przepustowo\u015bci i op\u00f3\u017anie\u0144 w zale\u017cno\u015bci od liczby r\u00f3wnocze\u015bnie wykonywanych obs\u0142uguj\u0105cych w trybie wielow\u0105tkowym. Do 3 w\u0105tk\u00f3w Valkey i Redis pokazuj\u0105 mniej wi\u0119cej r\u00f3wne wyniki, ale potem na prowadzenie wysuwa si\u0119 Valkey. Przy 6 w\u0105tkach na systemie z 8 VCPU wydajno\u015b\u0107 Valkey wynios\u0142a 678 tysi\u0119cy zapyta\u0144 SET na sekund\u0119, a Redis \u2014 563 tysi\u0105ce zapyta\u0144 na sekund\u0119 przy limicie 256 jednoczesnych po\u0142\u0105cze\u0144. Przy zwi\u0119kszeniu po\u0142\u0105cze\u0144 do 400 wydajno\u015b\u0107 Valkey wzros\u0142a do 832 tysi\u0119cy zapyta\u0144 SET na sekund\u0119.

\"Por\u00f3wnanie<\/center> <\/p>\n

Po optymalizacji obs\u0142ugi przerwa\u0144 w systemie w celu zmniejszenia liczby prze\u0142\u0105cze\u0144 kontekstu w Valkey uda\u0142o si\u0119 zwi\u0119kszy\u0107 wydajno\u015b\u0107 do 999,8 tys. zapyta\u0144 SET na sekund\u0119. Sedno optymalizacji polega\u0142o na przypisaniu 2 VCPU do przetwarzania przerwa\u0144 oraz powi\u0105zaniu 6 pozosta\u0142ych VCPU z w\u0105tkami przetwarzania wej\u015bcia\/wyj\u015bcia Valkey i Redis, aby wyeliminowa\u0107 migracj\u0119 obs\u0142uguj\u0105cych pomi\u0119dzy CPU. sudo ethtool -L ens34 combined 2 # ograniczamy liczb\u0119 obs\u0142uguj\u0105cych IRQ do 2 grep ens34 \/proc\/interrupts # sprawdzamy, kt\u00f3re obs\u0142uguj\u0105ce s\u0105 zaanga\u017cowane (99 i 100) echo 1 | sudo tee \/proc\/irq\/99\/smp_affinity # przypisujemy obs\u0142uguj\u0105c\u0105 99 do rdzenia 1 echo 2 | sudo tee \/proc\/irq\/100\/smp_affinity # przypisujemy obs\u0142uguj\u0105c\u0105 100 do rdzenia 2 # Uruchamiamy DB (dla Redis zmieni\u0107 valkey\/valkey:8.1.1 na redis:8.0) z przypisaniem kontenera do rdzeni CPU 2-7 docker run \u2014network=\u201ehost\u201d \u2014rm \n \u2014cpuset-cpus=\u201e2-7\u201d valkey\/valkey:8.1.1 \n \u2014save \u201e\u2014appendonly no \u2014io-threads 6 \n \u2014protected-mode no \u2014maxmemory 10gb <\/p>\n

Do testowania wydajno\u015bci u\u017cyto polecenia: docker run \u2014network=\u201ehost\u201d \u2014rm \u2014cpuset-cpus=\u201e2-7\u201d \n valkey\/valkey:8.0.1 valkey-benchmark \n -h 172.31.4.92 -p 6379 -t SET,GET -n 100000000 -c 256 \n -r 3000000 \u2014threads 6 -d 1024
\n
\u0179r\u00f3d\u0142o: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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