Gokhan Gulbiz 2c509b712a Tenant monitoring performance improvements (#6868) ... - [x] Use spinlock instead of lwlock per tenant [b437aa9](b437aa9e52) - [x] Use hashtable to store tenant stats [ccd464b](ccd464ba04) - [x] Introduce a new GUC for specifying the sampling rate of new tenant entries in the tenant monitor. [a8d3805](a8d3805bd6) Below are the pgbench metrics with select-only workloads from my local machine. Here is the [script](https://gist.github.com/gokhangulbiz/7a2308470597dc06734ff7c08f87c656) I used for benchmarking. | | Connection Count | Initial Implementation (TPS) | On/Off Diff | Final Implementation -Run#1 (TPS) | On/Off Diff | Final Implementation -Run#2 (TPS) | On/Off Diff | Final Implementation -Run#3 (TPS) | On/Off Diff | Avg On/Off Diff | | --- | ---------------- | ---------------------------- | ----------- | ---------------------------------- | ----------- | ---------------------------------- | ----------- | ---------------------------------- | ----------- | --------------- | | On | 32 | 37488.69839 | \-17% | 42859.94402 | \-5% | 43379.63121 | \-2% | 42636.2264 | \-7% | \-5% | | Off | 32 | 43909.83121 | | 45139.63151 | | 44188.77425 | | 45451.9548 | | | | On | 300 | 30463.03538 | \-15% | 33265.19957 | \-7% | 34685.87233 | \-2% | 34682.5214 | \-1% | \-3% | | Off | 300 | 35105.73594 | | 35637.45423 | | 35331.33447 | | 35113.3214 | | |		2023-06-11 12:17:31 +03:00
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backend	Tenant monitoring performance improvements (#6868)	2023-06-11 12:17:31 +03:00
bin/pg_send_cancellation	Add jobs to test builds on different distros (#6499)	2022-12-01 19:11:41 +03:00
include	Tenant monitoring performance improvements (#6868)	2023-06-11 12:17:31 +03:00
test	Tenant monitoring performance improvements (#6868)	2023-06-11 12:17:31 +03:00