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![Scalability
What does Odoo provides in terms of scalability?
1. ORM prefetchORM prefetch
# res.partner
companies == self..search([(([('is_company',,'=',,True)]))])
forfor company inin companies::
forfor contact inin company..child_ids::
ifif contact..country_id::
printprint u"%s : %s" %%
((contact..name,, contact..country_id..name))](https://image.slidesharecdn.com/cmsperformancesoptimization-140612071114-phpapp02/75/Odoo-CMS-performances-optimization-11-2048.jpg)
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Odoo - CMS performances optimization
This document discusses performance optimization and scalability in CMS systems like Odoo. It covers three main topics: 1. Asset bundles help optimize performance by concatenating and minifying JavaScript and CSS files to reduce page load latency. They are implemented as Odoo views for caching. 2. ORM prefetching allows efficient querying of related records to avoid N+1 queries. It plans parent-child relations in a minimal number of SQL queries. 3. Preforked workers like in Gunicorn help scale the system by handling an increasing workload across multiple processes.
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Odoo - CMS performances optimization
- 1.
- 2. Performance Refers to thecapability of a system to provide a certain response time.
- 3. Performance What has beendone in odoo in terms of performance optimization ?
- 4. Performance 1. A newtype of view (QWeb) 2. Asset bundlesAsset bundles
- 5. Performance Here's what wecan find in the document > body > head of most CMS's default setup. <head><head> <link<link href="/files/css/css_pbm0lsQQJ7A7WCCIMgxLho6mI_kBNgznNUWmTWcnfoE.css" type="text/css" rel="stylesheet" <link<link href="/files/css/css_GgerrJ1eO2p2FAGV0vkRGdFa8QLXDr0-mUgvpPQTbXU.css" type="text/css" rel="stylesheet" <link<link href="/files/css/css_GLOpzAhXMtWYvS4h5wbl6MtSyjZs8gh4uS0H2yCFKMQ.css" type="text/css" rel="stylesheet" <link<link href="/files/css/css_FA2n7wdGXAxEt6RZrMKCEcj3lLJtYSo_M5fkYjNGzYY.css" type="text/css" rel="stylesheet" <link<link href="/files/css/css_BxX7fMKqodl8G9DZ2zEO8tz0u1pex3OS77VssQ6kAbs.css" type="text/css" rel="stylesheet" <script<script src="/files/js/js_xAPl0qIk9eowy_iS9tNkCWXLUVoat94SQT48UBCFkyQ.js" type="text/javascript"></script>></script> <script<script src="/files/js/js_pWaEh3PAhCcBT2MOtrKzosTxS9eM5SUYFirhq9KQa0M.js" type="text/javascript"></script>></script> <script<script src="/files/js/js_sqDzf_5suPJcQpKY1lVF0I5wO_5bUrj5RwpiTKV3w3o.js" type="text/javascript"></script>></script> <script<script src="/files/js/js_TA8qfKqSlPTRUeVEmNo6g-LK6_BQOwPCT-lpp_13vP8.js" type="text/javascript"></script>></script> <script<script src="/files/js/js_rv_BKYv7yieH0IgHddhWHDC-bWGan8yiJbusyOpr0mw.js" type="text/javascript"></script>></script> <script<script src="/files/js/js_fZbsGtwY7jnTvjaAvTzUEFJKO-FkHlZC6o1x2O_56wc.js" type="text/javascript"></script>></script> ...
- 6. Performance Why is ita problem? BrowserBrowser Max. concurrent connections per domainMax. concurrent connections per domain Firefox 3+ 6 Opera 12+ 6 Safari 5+ 6 IE 8 6 IE 10 8 Chrome 6 Lack of @aync or @defer makes javascript loading synchronous.
- 7. Performance Solved by assetbundles! <head><head> <link<link href="/web/css/website.assets_frontend" rel="stylesheet"/>/> <script<script src="/web/js/website.assets_frontend"></script>></script> An asset bundle automatically concatenates and minifies javascripts and stylesheets in order to reduce the page load latency. Of course, once a bundle is generated, it's cached. <script<script src="/web/js/website.assets_frontend/da39a3e"></script>></script> Versioned bundles (still to be merged in master for v8)
- 8. Performance Asset bundles areOdoo views too (ir.ui.view) ! <template<template id="my_theme" inherit_id="website.assets_frontend">> <xpath<xpath expr="." position="inside">> <script<script src="/my_theme/static/src/js/my_theme.js"></script>></script> <link<link href="/my_theme/static/src/css/my_theme.css" rel="stylesheet"/>/> </xpath></xpath> </template></template> As such, they benefit of all the advantages we just talked about in the previous topics.
- 9. Performance 1. A newtype of view (QWeb) 2. Asset bundles 3. E-tags for imagesE-tags for images
- 10. Scalability Ability of asystem to handle a growing amount of work in a capable manner.
- 11. Scalability What does Odooprovides in terms of scalability? 1. ORM prefetchORM prefetch # res.partner companies == self..search([(([('is_company',,'=',,True)]))]) forfor company inin companies:: forfor contact inin company..child_ids:: ifif contact..country_id:: printprint u"%s : %s" %% ((contact..name,, contact..country_id..name))
- 12. Scalability An ORM lackingprefetch can't provide an efficient SQL query plan: -- 1 query - N results SELECTSELECT ...... FROMFROM res_partner -- N queries - M results SELECTSELECT ...... FROMFROM res_partner WHEREWHERE parent_id == <<id>> -- N*M queries SELECTSELECT ...... FROMFROM res_country WHEREWHERE id == <<id>> On 200 companies with ~2 linked partners each would cause those nested loops to make 601 SQL queries. In Odoo, the chains of browse record lists allows the ORM to efficiently plan the same operations in 5 SQL queries
- 13. Scalability 1. ORM prefetch 2.Preforked workers (same as Gunicorn)Preforked workers (same as Gunicorn)
- 14. Results Want detailed results,benchmarks and comparison of performance? Please attend to the "Open Source CMS: a performance comparison" talk by Mantavya Gajjar in this room at 16:20.
- 15.
- 16.