Excessive max-indexing-memory reduces cache and degrades performance

Setting max-indexing-memory too high allocates more memory for data updates but reduces available cache memory. Since cache is faster than disk I/O, excessively high indexing memory limits can hurt performance. If set too low, Meilisearch writes update contents to temporary files on disk, also causing I/O overhead. Performance may plateau or decrease beyond an optimal threshold.

Test different max-indexing-memory values to find the optimal balance for your workload. Start conservatively (e.g., 8GB on 64GB system) and increase gradually while monitoring search and indexing performance. Watch for performance plateau or degradation as a sign the value is too high. Consider that more memory for cache improves search latency.