Reduce benchmark runs to average for results

Changes would take to long to be reflected on the live site.
refs #4

Author: ipmb

README.md

@@ -41,4 +41,4 @@ To add a new package manager:
 
 ## Website
 
-The website is a static site deployed to GitHub Pages. As part of the deployment it downloads stats from the previous 6 benchmarks (run every 6 hours in GitHub Actions), calculates the average, and rebuilds the website. The code for this is in `site` and `.github/workflows/deploy.yml`. The site will automatically rebuild after the benchmarks run, but it can also be triggered by pushing to the `deploy/site` branch.
+The website is a static site deployed to GitHub Pages. As part of the deployment it downloads stats from the previous four benchmarks (run every 6 hours in GitHub Actions), calculates the average, and rebuilds the website. The code for this is in `site` and `.github/workflows/deploy.yml`. The site will automatically rebuild after the benchmarks run, but it can also be triggered by pushing to the `deploy/site` branch.

bin/generate_average_stats.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 set -euf -o pipefail
 
-RUN_COUNT=6
+RUN_COUNT=4
 RUN_LIST=$(gh run list --workflow benchmark --json databaseId,event --limit 50 --jq 'map(select(.event=="schedule")) | .[].databaseId')
 RECENT_RUNS=$(echo "$RUN_LIST" | head -n "$RUN_COUNT")
 # concatenate the stats files into a single file

site/index.html

@@ -86,7 +86,7 @@ <h2>Package Managers</h2>
     </ul>
     <p>
       The benchmarks run in GitHub Actions every six hours and this site
-      displays an average of the last six runs.<br />All graphs show elapsed
+      displays an average of the last four runs.<br />All graphs show elapsed
       time in seconds, so <strong>lower = faster</strong>.
     </p>
     <hr />