[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2025-09-04。"],[[["\u003cp\u003eThis document outlines performance tuning parameters specifically for AlloyDB Omni on a VM, based on various workload tests.\u003c/p\u003e\n"],["\u003cp\u003eThe suggested parameter changes focus on improving performance for most applications on modern hardware, while keeping most default PostgreSQL parameter values unchanged.\u003c/p\u003e\n"],["\u003cp\u003eKey parameters to adjust include \u003ccode\u003erandom_page_cost\u003c/code\u003e, \u003ccode\u003etemp_buffers\u003c/code\u003e, \u003ccode\u003emax_wal_size\u003c/code\u003e, \u003ccode\u003emin_wal_size\u003c/code\u003e, \u003ccode\u003edefault_toast_compression\u003c/code\u003e, and several memory-related settings like \u003ccode\u003emaintenance_work_mem\u003c/code\u003e and \u003ccode\u003ework_mem\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe tuning parameters for \u003ccode\u003emax_worker_processes\u003c/code\u003e, \u003ccode\u003emax_parallel_workers\u003c/code\u003e, and \u003ccode\u003emax_parallel_workers_per_gather\u003c/code\u003e should be adjusted based on the number of vCPUs.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eeffective_cache_size\u003c/code\u003e parameter is recommended to be set to 80% of DRAM, and \u003ccode\u003ework_mem\u003c/code\u003e should be adjusted from 128 to 512 MB depending on workload and memory availability.\u003c/p\u003e\n"]]],[],null,["# AlloyDB Omni performance tuning parameters on a VM\n\nSelect a documentation version: 15.7.1keyboard_arrow_down\n\n- [Current (16.8.0)](/alloydb/omni/current/docs/performance-tuning-parameters)\n- [16.8.0](/alloydb/omni/16.8.0/docs/performance-tuning-parameters)\n- [16.3.0](/alloydb/omni/16.3.0/docs/performance-tuning-parameters)\n- [15.12.0](/alloydb/omni/15.12.0/docs/performance-tuning-parameters)\n- [15.7.1](/alloydb/omni/15.7.1/docs/performance-tuning-parameters)\n- [15.7.0](/alloydb/omni/15.7.0/docs/performance-tuning-parameters)\n\n\u003cbr /\u003e\n\nThis document describes performance tuning parameters that can improve AlloyDB Omni performance on a VM. These suggested tuning parameters are based on the results of running a set of workloads that exhibit different read and write patterns, caching behaviors, and index access patterns.\n\n\u003cbr /\u003e\n\nMost default PostgreSQL parameter values remain unchanged, because the changes are limited to parameters that benefit the majority of applications.\nThe suggested values of these parameters should generally improve performance\non modern hardware."]]
