Showing actual percentiles in locust reports
05:35 06 Nov 2025

Is there a way to compute proper percentiles in Locust? The values are always rounded off to a multiple of 10.

I have read about Locust only estimating percentiles to save resources. But is there a way to override that? I am quite certain not all actual percentiles can't be that well-rounded.

Response time percentiles (approximated)
Type     Name                                                                                  50%    66%    75%    80%    90%    95%    98%    99%  99.9% 99.99%   100% # reqs
----------------|--------|------|------|------|------|------|------|------|------|------|------|------
POST     auth_token                                                                            240    240    320    330    350    480    480    480    480    480    480     20
POST     item_search                                                                            84     90     96    100    120    130    160    180    260    310    320  13330
----------------|--------|------|------|------|------|------|------|------|------|------|------|------
         Aggregated                                                                             84     90     96    100    120    140    160    180    270    350    480  13350
rounding locust percentile