Apc presentation
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APC (Alternative PHP Cache) is a PHP extension that caches and optimizes the opcodes generated by the Zend Engine. It stores precompiled PHP scripts in shared memory, improving performance by avoiding the need to parse and compile scripts on each request. APC offers opcode caching, content caching using functions like apc_add(), and upload progress reporting. Benchmark tests showed that using APC can nearly double the requests per second and reduce the average request time by over half compared to not using a opcode cache.
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Ansible is the simplest way to automate. SymfonyCafe, 2015
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- 5. Configurare
- 6. Teste
- 15. APC - Alternative PHP Cache Read Output Parse Compile Execute play.php Cache opcode PHP
- 16. APC - Alternative PHP Cache A lternative P HP C ache ( APC ) Este o extensie pentru php care realizeaza cache pentru codul intern al lui Zend Engine si anume opcode . Cachul este tinut in RAM. Instalarea se face cu ajutorul PECL pecl install apc Se configureaza cu ajutorul fisierului php.ini Se doreste introducerea extensiei in Core incepand cu PHP 6. Extensia ofera un set de functii pentru manevrarea cache-ului. Este dezvoltata de comunitatea php.net
- 17. APC - Alternative PHP Cache Facilitati oferite - opcode cache ( prin incarcarea extensiei ) - optimizarea codului opcode ( prin incarcarea extensiei ) - cache pentru continut ( date din DB ) ( prin functiile apc_add(), apc_store(), apc_fetch(), apc_delete() ) - acces la date in momentul cand se efectueaza un upload ( prin variabila APC_UPLOAD_PROGRESS )
- 18. APC - Alternative PHP Cache Exemplu de configurare in php.ini apc.enabled = On apc.stat = Off apc.shm_size = 30 apc.shm_segments = 1 apc.ttl = 0 apc.optimization = 3
- 19. APC - Alternative PHP Cache Teste Web site: http://www.serbanalexandru.ro Nginx 0.8.36 | PHP 5.3.2 | WordPress 2.9.2 Tool pentru testare Apache Benchmark (ab) ab -n 500 -c 10 http://www.serbanalexandru.ro/ CU APC Concurrency Level: 10 Time taken for tests: 59.218 seconds Complete requests: 500 Failed requests: 0 Write errors: 0 Total transferred: 15562500 bytes HTML transferred: 15449000 bytes Requests per second: 8.44 [#/sec] (mean) Time per request: 1184.353 [ms] (mean) Time per request: 118.435 [ms] (mean, across all concurrent requests) Transfer rate: 256.64 [Kbytes/sec] received FARA APC Concurrency Level: 10 Time taken for tests: 138.903 seconds Complete requests: 500 Failed requests: 0 Write errors: 0 Total transferred: 15562500 bytes HTML transferred: 15449000 bytes Requests per second: 3.60 [#/sec] (mean) Time per request: 2778.058 [ms] (mean) Time per request: 277.806 [ms] (mean, across all concurrent requests) Transfer rate: 109.41 [Kbytes/sec] received
- 20. APC - Alternative PHP Cache Va multumesc