Raspberry Pi 4 Boot Parameters

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3 years 10 months ago #260572 by JT
Raspberry Pi 4 Boot Parameters was created by JT
What boot parameters are being used on the Rpi 4?

Here's what I have now.
Code:
john@raspberrypi:~ $ cat /boot/cmdline.txt console=serial0,115200 console=tty1 root=PARTUUID=e5f4a04e-02 rootfstype=ext4 fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles

Searching I see isolcpus=1,2,3 idle=poll might be needed.

JT

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3 years 10 months ago #260593 by JT
Replied by JT on topic Raspberry Pi 4 Boot Parameters
Editing the /boot/cmdline.txt and config.txt and latency is < 20us

gnipsel.com/linuxcnc/rpi4-11-emc.html

JT

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3 years 10 months ago #260628 by elovalvo
Replied by elovalvo on topic Raspberry Pi 4 Boot Parameters
Referring to an old post,
forum.linuxcnc.org/plasmac/39179-raspber...mac?start=130#171369
do you think the following parameters could be useful as well?

acpi_irq_nobalance 
noirqbalance 
vmalloc=32MB 
clocksource=acpi_pm 
net.ifnames=0

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