Sebagian besar nilai parameter PostgreSQL default tetap tidak berubah, karena perubahan terbatas pada parameter yang bermanfaat bagi sebagian besar aplikasi.
Nilai yang disarankan untuk parameter ini umumnya akan meningkatkan performa
pada hardware modern.
Parameter database
Default AlloyDB Omni
Setelan yang disarankan
random_page_cost
4.0
1.1
temp_buffers
8 MB
128 MB
max_wal_size
1 GB
20 GB
min_wal_size
80 MB
10 GB
default_toast_compression
pglz
lz4
maintenance_work_mem
64 MB
1 GB untuk mesin yang lebih kecil, 2 GB untuk mesin yang lebih besar
max_worker_processes
64
max(64, # vCPUs)
max_parallel_workers
8
max(8, # vCPUs)
max_parallel_workers_per_gather
2
max(2, # vCPUs / 2)
work_mem
4 MB
128 hingga 512 MB, bergantung pada beban kerja dan jumlah memori yang tersedia
[[["Mudah dipahami","easyToUnderstand","thumb-up"],["Memecahkan masalah saya","solvedMyProblem","thumb-up"],["Lainnya","otherUp","thumb-up"]],[["Sulit dipahami","hardToUnderstand","thumb-down"],["Informasi atau kode contoh salah","incorrectInformationOrSampleCode","thumb-down"],["Informasi/contoh yang saya butuhkan tidak ada","missingTheInformationSamplesINeed","thumb-down"],["Masalah terjemahan","translationIssue","thumb-down"],["Lainnya","otherDown","thumb-down"]],["Terakhir diperbarui pada 2025-09-05 UTC."],[],[],null,["# AlloyDB Omni performance tuning parameters on a VM\n\nSelect a documentation version: 15.12.0keyboard_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."]]