Merge pull request #2907 from buinauskas/master

Add entry for maximum per search value MERGEOK
vespa-engine · Sep 28, 2023 · 5eb7ddc · 5eb7ddc
2 parents 190a8e5 + 3a26210
commit 5eb7ddc
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/en/performance/sizing-search.html b/en/performance/sizing-search.html
@@ -498,6 +498,8 @@ <h3 id="reduce-latency-with-multi-threaded-per-search-execution">
 so that different query use cases can use different number of threads per search.
 Using multiple threads per search allows better utilization of
 multi-core cpu architectures for low query volume applications.
+The persearch number in services should always be equal to the highest num-threads-per-search in your rank profiles.
+Setting it higher leaves threads unused.
 </p>
 
 <h4 id="thread-configuration">Thread configuration</h4>