percona / percona/pg_stat_monitor
Monitor/expose utilization of shared memory (pgsm_max)
Nobody has claimed this yet.
- Dominant language
- Perl
- Stars
- 591
- Forks
- 73
- Avg merge
- 2d 13h
- Merged PRs (30d)
- 13
Description
Description
Hi, we would like to monitor the level of utilization of the shared memory allocated by the extension so we can know if pgsm_max needs to be increased or not. I couldn't find any reference for right-sizing the amount of shared memory given the query load or other factors, so we'd like to right-size it through monitoring the usage as a percentage of pgsm_max and increasing it if necessary.
Thank you.
Suggested solution
Provide a function that returns the memory usage by all the buckets in bytes, which could be compared to pgsm_max.
Additional context
We are currently using postgresql 12.
Happy to try to contribute this to the code if someone could give me a pointer about where I could start looking.
Code of Conduct
- I agree to follow this project's Code of Conduct
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
The issue names pgsm_max and requests a function reporting shared-memory usage across all buckets in bytes. Start by tracing where pgsm_max and the extension's shared-memory buckets are defined; done means the reported usage can be compared with pgsm_max to monitor utilization.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- postgresql
- Domain
- databases
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100