diff --git a/_constraints b/_constraints
index 104240c..ba30d4b 100644
--- a/_constraints
+++ b/_constraints
@@ -12,9 +12,9 @@
       <disk>
          <size unit="G">36</size>
       </disk>
-      <memory>
-         <size unit="G">10</size>
-      </memory>
+      <physicalmemory>
+         <size unit="G">8</size>
+      </physicalmemory>
     </hardware>
   </overwrite>
 
@@ -27,9 +27,9 @@
       <disk>
          <size unit="G">36</size>
       </disk>
-      <memory>
-         <size unit="G">10</size>
-      </memory>
+      <physicalmemory>
+         <size unit="G">8</size>
+      </physicalmemory>
     </hardware>
   </overwrite>
 
@@ -42,9 +42,9 @@
       <disk>
          <size unit="G">36</size>
       </disk>
-      <memory>
-         <size unit="G">9</size>
-      </memory>
+      <physicalmemory>
+         <size unit="G">8</size>
+      </physicalmemory>
     </hardware>
   </overwrite>
 
@@ -57,9 +57,9 @@
       <disk>
          <size unit="G">42</size>
       </disk>
-      <memory>
-         <size unit="G">9</size>
-      </memory>
+      <physicalmemory>
+         <size unit="G">8</size>
+      </physicalmemory>
     </hardware>
   </overwrite>
 
@@ -72,9 +72,9 @@
       <disk>
          <size unit="G">52</size>
       </disk>
-      <memory>
-         <size unit="G">12</size>
-      </memory>
+      <physicalmemory>
+         <size unit="G">10</size>
+      </physicalmemory>
     </hardware>
   </overwrite>
 
@@ -87,9 +87,9 @@
       <disk>
          <size unit="G">42</size>
       </disk>
-      <memory>
-         <size unit="G">9</size>
-      </memory>
+      <physicalmemory>
+         <size unit="G">8</size>
+      </physicalmemory>
     </hardware>
   </overwrite>
 
@@ -102,9 +102,9 @@
       <disk>
          <size unit="G">28</size>
       </disk>
-      <memory>
+      <physicalmemory>
          <size unit="G">8</size>
-      </memory>
+      </physicalmemory>
     </hardware>
   </overwrite>
 
@@ -117,9 +117,9 @@
       <disk>
          <size unit="G">42</size>
       </disk>
-      <memory>
+      <physicalmemory>
          <size unit="G">8</size>
-      </memory>
+      </physicalmemory>
     </hardware>
   </overwrite>
 
diff --git a/ceph-test.changes b/ceph-test.changes
index eaac453..1ee9a75 100644
--- a/ceph-test.changes
+++ b/ceph-test.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Thu Jun 24 19:10:24 UTC 2021 - Nathan Cutler <ncutler@suse.com>
+
+- Update _constraints: only honor physical memory, not 'any memory'
+  (e.g. swap). But then, be happy with 8GB (bumping the current
+  x86_64 worker pool from 16 to 64). (Dominique Leuenberger)
+
 -------------------------------------------------------------------
 Fri May 14 10:20:23 UTC 2021 - Nathan Cutler <ncutler@suse.com>
 
diff --git a/ceph.changes b/ceph.changes
index eaac453..1ee9a75 100644
--- a/ceph.changes
+++ b/ceph.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Thu Jun 24 19:10:24 UTC 2021 - Nathan Cutler <ncutler@suse.com>
+
+- Update _constraints: only honor physical memory, not 'any memory'
+  (e.g. swap). But then, be happy with 8GB (bumping the current
+  x86_64 worker pool from 16 to 64). (Dominique Leuenberger)
+
 -------------------------------------------------------------------
 Fri May 14 10:20:23 UTC 2021 - Nathan Cutler <ncutler@suse.com>