Add large buffer test job

Author: christiangnrd

.buildkite/pipeline.yml

@@ -116,6 +116,31 @@ steps:
             build.message !~ /\[skip validation\]/ &&
             build.message !~ /\[skip special\]/
         timeout_in_minutes: 60
+      - label: ":ram: Large buffers"
+        plugins:
+          - JuliaCI/julia#v1:
+              version: "1.12"
+          - JuliaCI/julia-test#v1:
+              test_args: "--jobs=1 --quickfail largecopy largebroadcast"
+          - JuliaCI/julia-coverage#v1:
+              codecov: true
+              dirs:
+                - src
+                - lib
+        agents:
+          queue: "juliaecosystem"
+          os: "macos"
+          arch: "aarch64"
+          macos_version: "15.0"
+        if: |
+          build.message =~ /\[only tests\]/ ||
+          build.message =~ /\[only large\]/ ||
+          build.message =~ /\[only special\]/ ||
+          build.message !~ /\[only/ && !build.pull_request.draft &&
+            build.message !~ /\[skip tests\]/ &&
+            build.message !~ /\[skip large\]/ &&
+            build.message !~ /\[skip special\]/
+        timeout_in_minutes: 15
 
   - wait: ~
     continue_on_failure: true

test/runtests.jl

@@ -94,12 +94,12 @@ if filter_tests!(testsuite, args)
     end
 
     # only run large copy test on machines with >12GiB memory
-    if Sys.total_memory() < 12 * 2^30
+    if parse(Bool, get(ENV, "CI", "false")) || Sys.total_memory() < 12 * 2^30
         delete!(testsuite, "largecopy")
     end
 
     # only run large broadcast test on machines with >12GiB memory
-    if Sys.total_memory() < 12 * 2^30
+    if parse(Bool, get(ENV, "CI", "false")) || Sys.total_memory() < 12 * 2^30
         delete!(testsuite, "largebroadcast")
     end
 end