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authorHenning Baldersheim <balder@yahoo-inc.com>2020-05-19 21:41:28 +0000
committerHenning Baldersheim <balder@yahoo-inc.com>2020-05-19 21:41:28 +0000
commit235c044e4c89672db20507a9b06b44fd331bb47e (patch)
tree02e51f1e7d7ecbcd8fe4a4101b51543a48ba673d /configdefinitions
parent0e8f55a17106adaf6d7d134fd9752c170deb1e4f (diff)
Set top-k-probability to 0.9999
Diffstat (limited to 'configdefinitions')
-rw-r--r--configdefinitions/src/vespa/dispatch.def4
1 files changed, 2 insertions, 2 deletions
diff --git a/configdefinitions/src/vespa/dispatch.def b/configdefinitions/src/vespa/dispatch.def
index 0776e648ad7..a73032583a5 100644
--- a/configdefinitions/src/vespa/dispatch.def
+++ b/configdefinitions/src/vespa/dispatch.def
@@ -29,8 +29,8 @@ maxHitsPerNode int default=2147483647
## will give you the globally K best hits according to this formula with the desired probability.
## q = k/n + qT (p',30) x √(k × (1/n) × (1 − 1/n))
## With a probability of 0.999 and K=200 and N=10 will give a Q of 38, meaning that you only need to fetch 19% compared to
-## default setting of 1.0. This is a significant optimisation with with very little loss in presicion.
-topKProbability double default=1.0
+## a setting of 1.0. This is a significant optimisation with with very little loss in presicion.
+topKProbability double default=0.9999
# Is multi-level dispatch configured for this cluster
# Deprecated, will go away soon, NOOP