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Runtime tests running on test runners are subject to a high variability in term of performance and timing. Most or the runtime test commands are executed with a timeout, in pexpect. Slow or very loaded test runners can use the timeout_multiplier to globally increase those timeouts. Some runtime test commands sometimes needs to poll or query a state, rather than having purely sequential actions. It is sometimes hard to know, from the test writer point of view, the maximum timeout to set, or if a retry logic is needed. In order to help debugging runtime tests failing due very slow execution, this commit adds extra information on the host test runner about its load in the run log. Relevant information are: number of cpus, the load average at the moment the emulator is started and the current timeout_multiplier. Note: this change was discussed in: https://lists.buildroot.org/pipermail/buildroot/2024-July/759119.html Signed-off-by: Julien Olivain <ju.o@free.fr> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> |
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