From 21e3f9b07f8a144feb34a6814077b7494b956104 Mon Sep 17 00:00:00 2001
From: Zachary Ware <zach@python.org>
Date: Sun, 16 Feb 2025 09:45:20 -0600
Subject: [PATCH 1/2] Add cache configuration

---
 master/master.cfg | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/master/master.cfg b/master/master.cfg
index 2dd0b695..8f156a51 100644
--- a/master/master.cfg
+++ b/master/master.cfg
@@ -110,6 +110,17 @@ c["configurators"] = [
     )
 ]
 
+c["caches"] = {
+    "Changes": 100,
+    "Builds": 500,
+    "chdicts": 100,
+    "BuildRequests": 100,
+    "SourceStamps": 200,
+    "ssdicts": 200,
+    "objectids": 10,
+    "usdicts": 100,
+}
+
 # workers are set up in workers.py
 c["workers"] = [w.bb_worker for w in WORKERS]
 

From fedad4e5a4b1cd4fd70fba1444f8279e680bff03 Mon Sep 17 00:00:00 2001
From: Zachary Ware <zach@python.org>
Date: Sun, 16 Feb 2025 09:45:20 -0600
Subject: [PATCH 2/2] fixup! Add cache configuration

---
 master/master.cfg | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/master/master.cfg b/master/master.cfg
index 8f156a51..2e72096a 100644
--- a/master/master.cfg
+++ b/master/master.cfg
@@ -110,6 +110,11 @@ c["configurators"] = [
     )
 ]
 
+# Note: these cache values are not currently tuned in any meaningful way.
+# Some are taken straight from the buildbot docs at
+# https://docs.buildbot.net/4.2.1/manual/configuration/global.html#caches
+# and others are just guesses.  For now, they're mostly meant to see if
+# there's any appreciable impact on performance or memory usage.
 c["caches"] = {
     "Changes": 100,
     "Builds": 500,