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09:36 AM Database Feature #11638: Reduce FastFindCache invalidation thrashing

Alex, I found 2 relevant OE database parameters for FFC tasks:
* LRU force skips (-lruskips): The number of times to...

07:41 AM Database Feature #11723: Implement -prefetchNumRecs and -Mm database startup parameters

Alex, regarding the prefetched window in OE. When a reader walks a batch and another session alters records in that b...

07:21 AM Database Feature #11723: Implement -prefetchNumRecs and -Mm database startup parameters

Alex, I committed the batch fetching for invalidated AQ to 11723a.
Prefetched records in the window/batch are froz...

08/11/2026

08:07 AM Database Feature #11638: Reduce FastFindCache invalidation thrashing

Alex, the thrashing aspect was more of a speculation on my part, while working on this I observed that a lot of cache...

07:24 AM Database Feature #11638: Reduce FastFindCache invalidation thrashing

Multi tenant app regression testing is ok, also tested large gui application unit tests.
*Alex*, please take a quick...

05:03 AM Database Feature #11638: Reduce FastFindCache invalidation thrashing

Thank you, Danut.
On my part the multi tenant app performance is unchanged. Proceeding with a wider test plan.

08/10/2026

07:24 AM Database Feature #11723: Implement -prefetchNumRecs and -Mm database startup parameters

My understanding is that rereadnolock affects which version of cached records will be served, it does not fetch the l...

02:30 AM Database Feature #11723: Implement -prefetchNumRecs and -Mm database startup parameters

I will start by writing a multi session test suite with harness to better understand the extent of the message buffer...

02:28 AM Database Feature #11723 (WIP): Implement -prefetchNumRecs and -Mm database startup parameters

02:27 AM Database Feature #11723 (WIP): Implement -prefetchNumRecs and -Mm database startup parameters