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Re: [Qemu-devel] [PATCH] tests/prom-env: Ease time-out problems on slow

From: Peter Maydell
Subject: Re: [Qemu-devel] [PATCH] tests/prom-env: Ease time-out problems on slow hosts
Date: Thu, 9 Feb 2017 14:37:26 +0000

On 9 February 2017 at 14:13, Thomas Huth <address@hidden> wrote:
> Peter Maydell recently ran into time-out problems with the
> prom-env test on a rather slow ARM board. To tackle this issue,
> we can speed up the test by running QEMU with "-nodefaults" here,
> so that SLOF has less devices to scan during boot, and by using
> the "nvramrc" environment variable instead of "boot-command",
> since this variable is evaluated earlier in the boot process.
> And to be really sure that we do not face such time out problems
> again, let's also increase the time out value from 100s to 120s
> instead.
> Signed-off-by: Thomas Huth <address@hidden>
> ---
>  tests/prom-env-test.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)

Seems to cut the elapsed realtime for the pseries board
down from about 90s to 55s. Hopefully that plus the
boosted timeout will help.

Tested-by: Peter Maydell <address@hidden>

-- PMM

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