Re: [yocto] Disabling unused service to reduce boot time (Krikstone version)
If you're serious about boot time (and image size) reduction, your first step should be to create your own DISTRO and your own image recipe. Scrap those first words actually, I think this should be the first step in anything that's to become a real product. It's much more efficient to start empty en add what you need, then to start with an everything-but-the-kitchen-sink image and then try to remove things without breaking other things. Putting things in ":remove" overrides is not going to work as you expect. If package X has a run-time dependency on package Y, then package Y will be installed regardless of whether you added a bunch of ZZZ:remove += "Y" in some places. To get rid of Y, you'll have to remove or alter X. Also start with analyzing your boot time. I've seen projects where people spent weeks on removing services and gaining less than a second, while they left a "bootdelay" active in U-boot. Of total 10 seconds boot time, three seconds were spent twidling thumbs in U-boot. That's a 30% boot time improvement in less than an hour's work. A raspberrypi 4 for example will spend about 5 seconds in its closed-source firmware at boot. Some things are just beyond your control. On many embedded devices boot time is dominated by the IO speed of the boot device. Just changing your rootfs type from ext4 into LZ4-compressed squashfs often reduces the boot time noticably. When using systemd, "systemd-analyze criticalpath" should be your starting point. M. On 27-11-2024 07:25, sateesh m via lists.yoctoproject.org wrote: Hi Team, I want to improve my boot time so for that I want to disable few services which is running during boot up. I want to disable below mentioned services. -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#64372): https://lists.yoctoproject.org/g/yocto/message/64372 Mute This Topic: https://lists.yoctoproject.org/mt/109803053/21656 Group Owner: yocto+ow...@lists.yoctoproject.org Unsubscribe: https://lists.yoctoproject.org/g/yocto/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [yocto] Disabling unused service to reduce boot time (Krikstone version)
Leave the recipes as they are and install a preset for your image which disables those services in /usr/lib/systemd/system-preset/ (called something like 00-myimage.preset - files are read alphabetically, first match takes effect), then list the things you want to disable in there; disable avahi.service disable iptables6.service etc. See https://systemd.io/PRESET/ On Wed, Nov 27, 2024 at 6:25 AM sateesh m via lists.yoctoproject.org wrote: > > Hi Team, > > I want to improve my boot time so for that I want to disable few services > which is running during boot up. I want to disable below mentioned services. > > avahi,iptables6,iptable, zeroconf,polkit,drm, > > services > > 6.242s user@0.service > 2.01s ldconfig.service > 2.359s iptables.service > 2.293s ip6tables.service > 1.434s systemd-userdbd.service > 1.463s avahi-daemon.service > 1.231s modprobe@drm.service > 1.170s sys-kernel-debug.mount > 1.163s sys-kernel-tracing.mount > 1.161s modprobe@configfs.service > 1.160s tmp.mount > 1.157s kmod-static-nodes.servic > > I have followed below steps but not working this > > SYSTEMD_AUTO_ENABLE_avahi = "disable" > SYSTEMD_SERVICE:avahi = "avahi-daemon.service" > IMAGE_INSTALL:remove = "avahi" > SYSTEMD_AUTO_ENABLE_tx-powermon = "disable" > SYSTEMD_SERVICE:tx-powermon = "tx-powermon.service" > SYSTEMD_AUTO_ENABLE_polkit = "disable" > PACKAGECONFIG:remove = "polkit" > SYSTEMD_AUTO_ENABLE_ip6tables = "disable" > PACKAGECONFIG:remove = "ip6tables" > SYSTEMD_SERVICE:ip6tables = "ip6tables.service" > IMAGE_INSTALL:remove = "ip6tables drm" > DISTRO_FEATURES:remove = "zeroconf" > > > -- Alex Kiernan -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#64365): https://lists.yoctoproject.org/g/yocto/message/64365 Mute This Topic: https://lists.yoctoproject.org/mt/109803053/21656 Group Owner: yocto+ow...@lists.yoctoproject.org Unsubscribe: https://lists.yoctoproject.org/g/yocto/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [yocto] Disabling unused service to reduce boot time (Krikstone version)
On 11/27/24 10:39, sateesh m via lists.yoctoproject.org wrote:
Hi Team,
I have tried below method
SYSTEMD_SERVICE:${PN}-avahi = "avahi-daemon.service"
SYSTEMD_AUTO_ENABLE:${PN}-avahi = "disable"
Don't use "...${PN}-avahi", keep it "...pn-avahi".
Couple of questions:
1. Where and how do you set these configs?
2. After setting SYSTEMD_AUTO_ENABLE:pn-avahi = "disable" for example,
what is the output of "bitbake -e avahi | grep ^SYSTEMD_AUTO"? (This
supposed to output the history of the variable, how it got its final
value for this recipe)
3. What happens if you try Markus' advice, and rename avahi recipe? What
package is complaining when you try to build your image?
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Re: [yocto] Disabling unused service to reduce boot time (Krikstone version)
Hi Team,
I have tried below method
SYSTEMD_SERVICE:${PN}-avahi = "avahi-daemon.service"
SYSTEMD_AUTO_ENABLE:${PN}-avahi = "disable"
But I am unable to disable service during boot up time. I want to disable it to
improve my boot performance.
Regards,
Sateesh
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Re: [yocto] Disabling unused service to reduce boot time (Krikstone version)
Hi Have tried. DISTRO_FEATURES:remove = "zeroconf polkit" SYSTEMD_AUTO_ENABLE:pn-avahi = "disable" SYSTEMD_AUTO_ENABLE:pn-ip6tables = "disable" Even not worked.Any other method ? -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#64357): https://lists.yoctoproject.org/g/yocto/message/64357 Mute This Topic: https://lists.yoctoproject.org/mt/109803053/21656 Group Owner: yocto+ow...@lists.yoctoproject.org Unsubscribe: https://lists.yoctoproject.org/g/yocto/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [yocto] Disabling unused service to reduce boot time (Krikstone version)
On Tue, Nov 26 2024 at 10:25:30 PM -08:00:00, sateesh m via lists.yoctoproject.org wrote: DISTRO_FEATURES:remove = "zeroconf" This should usually avoid installing avahi. I would check what else installs avahi to your image by temporarily renaming avahi.bb so that it can't be found, then rebuild your image and see where it fails. Additionally removing 'polkit' from DISTRO_FEATURES should also globally disable polkit support DISTRO_FEATURES:remove = "zeroconf polkit" -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#64355): https://lists.yoctoproject.org/g/yocto/message/64355 Mute This Topic: https://lists.yoctoproject.org/mt/109803053/21656 Group Owner: yocto+ow...@lists.yoctoproject.org Unsubscribe: https://lists.yoctoproject.org/g/yocto/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [yocto] Disabling unused service to reduce boot time (Krikstone version)
When adding this to a global config file (local.conf, etc), make sure to 1. Use the override syntax with ":" 2. Prefix the package name with "pn-" E.g. SYSTEMD_AUTO_ENABLE:pn-avahi="disable" -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#64354): https://lists.yoctoproject.org/g/yocto/message/64354 Mute This Topic: https://lists.yoctoproject.org/mt/109803053/21656 Group Owner: yocto+ow...@lists.yoctoproject.org Unsubscribe: https://lists.yoctoproject.org/g/yocto/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
