Raspberry Pi 4 Boot Parameters
30 Dec 2022 21:06 #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.
Searching I see isolcpus=1,2,3 idle=poll might be needed.
JT
Here's what I have now.
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-consolesSearching I see isolcpus=1,2,3 idle=poll might be needed.
JT
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30 Dec 2022 23:19 #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
gnipsel.com/linuxcnc/rpi4-11-emc.html
JT
The following user(s) said Thank You: elovalvo
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31 Dec 2022 09:13 #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
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
The following user(s) said Thank You: JT
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