From c502203b1de1ed9577e48e731afb454f856027b3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bernhard=20=C3=9Cbelacker?= <bernhardu@mailbox.org>
Date: Tue, 31 Oct 2023 22:22:46 +0100
Subject: [PATCH] nproc test

I wondered why vsyscall_reverse_next-32 takes in CI kind of long.
And suspect this has something to do with JULIA_CPU_THREADS=128
at a CPU supporting 64 threads?

model name	: AMD EPYC 7502 32-Core Processor
nproc shows also 128
lscpu: failed to determine number of CPUs: /sys/devices/system/cpu/possible: No such file or directory
---
 .buildkite/lib/generate.jl         | 9 ++++++++-
 .buildkite/lib/types.jl            | 7 -------
 src/test/vsyscall_reverse_next.py  | 5 +++++
 src/test/vsyscall_reverse_next.run | 1 +
 4 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/.buildkite/lib/generate.jl b/.buildkite/lib/generate.jl
index 0c12929d844..2d6658fdc37 100644
--- a/.buildkite/lib/generate.jl
+++ b/.buildkite/lib/generate.jl
@@ -32,7 +32,14 @@ function generate(platform::Platform)
     mkdir -p Testing/Temporary
     mv ../.buildkite/CTestCostData.txt Testing/Temporary
     if bin/rr record bin/simple; then
-      julia ../.buildkite/capture_tmpdir.jl ctest --output-on-failure -j\$\$(expr \$\${JULIA_CPU_THREADS:?} - 2)
+      if [ "\$\${JULIA_CPU_THREADS:?}" == "128" ]; then
+        #taskset --cpu-list 0-63 julia ../.buildkite/capture_tmpdir.jl ctest --output-on-failure -j64
+        #bash -c "sleep 15s; ps aux --width 1000; sleep 15s; ps aux --width 1000; sleep 15s; ps aux --width 1000; sleep 15s; ps aux --width 1000; sleep 15s; ps aux --width 1000; sleep 15s; ps aux --width 1000; sleep 15s; ps aux --width 1000; sleep 15s; ps aux --width 1000" &
+        bash -c "sleep 15s; gdb -q --pid \$\$(pgrep -o rr) --batch -ex bt -ex detach -ex q; sleep 15s; gdb -q --pid \$\$(pgrep -o rr) --batch -ex bt -ex detach -ex q; sleep 15s; gdb -q --pid \$\$(pgrep -o rr) --batch -ex bt -ex detach -ex q; sleep 15s; gdb -q --pid \$\$(pgrep -o rr) --batch -ex bt -ex detach -ex q; sleep 15s; gdb -q --pid \$\$(pgrep -o rr) --batch -ex bt -ex detach -ex q; sleep 15s; gdb -q --pid \$\$(pgrep -o rr) --batch -ex bt -ex detach -ex q; sleep 15s; gdb -q --pid \$\$(pgrep -o rr) --batch -ex bt -ex detach -ex q; sleep 15s; gdb -q --pid \$\$(pgrep -o rr) --batch -ex bt -ex detach -ex q" &
+        taskset --cpu-list 0-15 julia ../.buildkite/capture_tmpdir.jl ctest --verbose -R vsyscall_reverse_next-32-no-syscallbuf
+      else
+        julia ../.buildkite/capture_tmpdir.jl ctest --output-on-failure -j\$\$(expr \$\${JULIA_CPU_THREADS:?} - 2)
+      fi
     else
       echo -n -e "rr seems not able to run, skipping running test suite.\nhostname: "
       hostname
diff --git a/.buildkite/lib/types.jl b/.buildkite/lib/types.jl
index 5271abb6b10..59bec0d310d 100644
--- a/.buildkite/lib/types.jl
+++ b/.buildkite/lib/types.jl
@@ -23,12 +23,5 @@ const platforms = Platforms(
             allow_fail      = false,
             commit_status   = true,
         ),
-        Platform(;
-            arch            = "aarch64",
-            rootfs_tag      = "v5.22",
-            rootfs_treehash = "7a63218e46996b36aa108b55746a3d94a3e312c1",
-            allow_fail      = false,
-            commit_status   = true,
-        ),
     ]
 )
diff --git a/src/test/vsyscall_reverse_next.py b/src/test/vsyscall_reverse_next.py
index 8de6b397449..3a6e59a618c 100644
--- a/src/test/vsyscall_reverse_next.py
+++ b/src/test/vsyscall_reverse_next.py
@@ -1,15 +1,20 @@
+import datetime
 from util import *
 
 send_gdb('break vsyscall_reverse_next.c:6')
 expect_gdb('Breakpoint 1')
+send_gdb('print "' + datetime.datetime.now().strftime("%Y-%m-%d, %H:%M:%S.%f") + '"')
 send_gdb('c')
 expect_gdb('Breakpoint 1')
+send_gdb('print "' + datetime.datetime.now().strftime("%Y-%m-%d, %H:%M:%S.%f") + '"')
 send_gdb('disable 1')
 
 send_gdb('n')
 expect_gdb('atomic_puts')
+send_gdb('print "' + datetime.datetime.now().strftime("%Y-%m-%d, %H:%M:%S.%f") + '"')
 
 send_gdb('reverse-next')
 expect_gdb('time')
+send_gdb('print "' + datetime.datetime.now().strftime("%Y-%m-%d, %H:%M:%S.%f") + '"')
 
 ok()
diff --git a/src/test/vsyscall_reverse_next.run b/src/test/vsyscall_reverse_next.run
index fa0871c0b30..ccce77e77f1 100644
--- a/src/test/vsyscall_reverse_next.run
+++ b/src/test/vsyscall_reverse_next.run
@@ -1,3 +1,4 @@
 source `dirname $0`/util.sh
 if [ $TIMEOUT -lt 600 ]; then TIMEOUT=600; fi
 debug_test
+failed ": test"