From: Michael Olbrich <m.olbrich@pengutronix.de>
To: distrokit@pengutronix.de
Subject: [DistroKit] [PATCH] platform-v7a: vexpress: run qemu with CPU 4 cores
Date: Sun, 19 May 2019 11:40:36 +0200 [thread overview]
Message-ID: <20190519094036.15059-1-m.olbrich@pengutronix.de> (raw)
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
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next reply other threads:[~2019-05-19 9:40 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-19 9:40 Michael Olbrich [this message]
2019-05-19 10:35 ` Robert Schwebel
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