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[PATCH v3 16/16] mtest2make: stop disabling meson test timeouts
From: |
Thomas Huth |
Subject: |
[PATCH v3 16/16] mtest2make: stop disabling meson test timeouts |
Date: |
Fri, 15 Dec 2023 08:03:57 +0100 |
From: Daniel P. Berrangé <berrange@redhat.com>
The mtest2make.py script passes the arg '-t 0' to 'meson test' which
disables all test timeouts. This is a major source of pain when running
in GitLab CI and a test gets stuck. It will stall until GitLab kills the
CI job. This leaves us with little easily consumable information about
the stalled test. The TAP format doesn't show the test name until it is
completed, and TAP output from multiple tests it interleaved. So we
have to analyse the log to figure out what tests had un-finished TAP
output present and thus infer which test case caused the hang. This is
very time consuming and error prone.
By allowing meson to kill stalled tests, we get a direct display of what
test program got stuck, which lets us more directly focus in on what
specific test case within the test program hung.
The other issue with disabling meson test timeouts by default is that it
makes it more likely that maintainers inadvertantly introduce slowdowns.
For example the recent-ish change that accidentally made migrate-test
take 15-20 minutes instead of around 1 minute.
The main risk of this change is that the individual test timeouts might
be too short to allow completion in high load scenarios. Thus, there is
likely to be some short term pain where we have to bump the timeouts for
certain tests to make them reliable enough. The preceeding few patches
raised the timeouts for all failures that were immediately apparent
in GitLab CI.
Even with the possible short term instability, this should still be a
net win for debuggability of failed CI pipelines over the long term.
Signed-off-by: "Daniel P. Berrangé" <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230717182859.707658-13-berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
scripts/mtest2make.py | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/scripts/mtest2make.py b/scripts/mtest2make.py
index 179dd54871..eb01a05ddb 100644
--- a/scripts/mtest2make.py
+++ b/scripts/mtest2make.py
@@ -27,7 +27,8 @@ def names(self, base):
.speed.slow = $(foreach s,$(sort $(filter-out %-thorough, $1)), --suite $s)
.speed.thorough = $(foreach s,$(sort $1), --suite $s)
-.mtestargs = --no-rebuild -t 0
+TIMEOUT_MULTIPLIER = 1
+.mtestargs = --no-rebuild -t $(TIMEOUT_MULTIPLIER)
ifneq ($(SPEED), quick)
.mtestargs += --setup $(SPEED)
endif
--
2.43.0
- [PATCH v3 07/16] qtest: bump prom-env-test timeout to 6 minutes, (continued)
- [PATCH v3 07/16] qtest: bump prom-env-test timeout to 6 minutes, Thomas Huth, 2023/12/15
- [PATCH v3 11/16] qtest: bump bios-table-test timeout to 9 minutes, Thomas Huth, 2023/12/15
- [PATCH v3 12/16] tests/qtest: Bump the device-introspect-test timeout to 12 minutes, Thomas Huth, 2023/12/15
- [PATCH v3 14/16] tests/unit: Bump test-crypto-block test timeout to 5 minutes, Thomas Huth, 2023/12/15
- [PATCH v3 06/16] qtest: bump pxe-test timeout to 10 minutes, Thomas Huth, 2023/12/15
- [PATCH v3 05/16] qtest: bump test-hmp timeout to 4 minutes, Thomas Huth, 2023/12/15
- [PATCH v3 08/16] qtest: bump boot-serial-test timeout to 3 minutes, Thomas Huth, 2023/12/15
- [PATCH v3 09/16] qtest: bump qos-test timeout to 2 minutes, Thomas Huth, 2023/12/15
- [PATCH v3 15/16] tests/fp: Bump fp-test-mulAdd test timeout to 3 minutes, Thomas Huth, 2023/12/15
- [PATCH v3 13/16] tests/unit: Bump test-aio-multithread test timeout to 2 minutes, Thomas Huth, 2023/12/15
- [PATCH v3 16/16] mtest2make: stop disabling meson test timeouts,
Thomas Huth <=
- Re: [PATCH v3 00/16] tests: enable meson test timeouts to improve debuggability, Alex Bennée, 2023/12/15