From: Robert Schwebel <r.schwebel@pengutronix.de>
To: Michael Olbrich <m.olbrich@pengutronix.de>
Cc: distrokit@pengutronix.de
Subject: Re: [DistroKit] [PATCH] platform-v7a: vexpress: run qemu with CPU 4 cores
Date: Sun, 19 May 2019 12:35:16 +0200 [thread overview]
Message-ID: <20190519103516.wdeymgvofglbjl7o@pengutronix.de> (raw)
In-Reply-To: <20190519094036.15059-1-m.olbrich@pengutronix.de>
On Sun, May 19, 2019 at 11:40:36AM +0200, Michael Olbrich wrote:
> Newer versions of qemu can use multiple threads to emulate the CPU cores.
> This can speed up booting significantly: 22 seconds instead of 34 seconds
> for multi-user.target on on test machine.
>
> Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
> ---
> configs/platform-v7a/run | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/configs/platform-v7a/run b/configs/platform-v7a/run
> index 7f46140e80bc..7ff747fba4d4 100755
> --- a/configs/platform-v7a/run
> +++ b/configs/platform-v7a/run
> @@ -68,7 +68,7 @@ fi
> BASE_CMDLINE="console=ttyAMA0,115200 loglevel=5 systemd.log_level=warning systemd.show_status=auto"
>
> # Machine to emulate
> -QEMU_ARGS=( -machine vexpress-a9 -cpu cortex-a9 -m 1024M )
> +QEMU_ARGS=( -machine vexpress-a9 -cpu cortex-a9 -smp 4 -m 1024M )
> # disable graphics output
> QEMU_ARGS[${#QEMU_ARGS[@]}]="-nographic"
> # Exit qemu on reboot
> --
> 2.20.1
Applied to next.
rsc
--
Pengutronix e.K. | Dipl.-Ing. Robert Schwebel |
Industrial Linux Solutions | https://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
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prev parent reply other threads:[~2019-05-19 10:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-19 9:40 Michael Olbrich
2019-05-19 10:35 ` Robert Schwebel [this message]
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