[8.x] [Security Solution][Serverless] - Improve security solution performance (#194241) #194588
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…ce (elastic#194241) ## Summary The goal of this PR is to improve the default performance of many of our security solution views. 1. Upon scale testing, it was observed that the default events histogram aggregation was a source of application slowness, so to improve the performance of the default security experience, we've made the default breakdown for the events histogram `No Breakdown` similar to what is seen in the default discover histogram experience. 2. After looking through some telemetry, it was observed that the field list query run in the background for timeline can also take a significant amount of time based on the user's field count, so we now only run that query after timeline has been opened. ### Demos #### 1. By default the events visualizations on the overview and explore events pages will not have an aggregation. The user will have to manually select the breakdown they desire: elastic@d354d27 https://github.com/user-attachments/assets/a6d6987b-73fc-4735-9c37-973917c2fa2d #### 2. Timeline fields list will only load after the first interaction with timeline: elastic@ad55726 **Before:** https://github.com/user-attachments/assets/0ad2e903-ac15-4daa-925b-da8ad05e80dd **After:** https://github.com/user-attachments/assets/27d5d3d5-02c8-49b5-b699-239ebc36b16c (cherry picked from commit e45d97b)
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janmonschke
approved these changes
Oct 1, 2024
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