minimum time to boot tiny core X server

[curaga]

@Misalf

If you disable the useBusybox function in tc-functions (replace the command inside with "true" for example, shells don't like empty functions), full process names should show in the bootchart.

@malikawan

What's unclear on the wiki page?

[malikawan]

Thanx for reply  curaga

after install  Bootchart-py.tcz what can i do to get  Bootchart just i install or do some configuration for geting Bootchart


sorry for bad english

[curaga]

As written in the wiki page, you need to remaster your initrd so that it gathers the required info. It's all written there.

[malikawan]

curaga thanx for reply but in wiki

 Extract to the initrd:
sudo tar -C /tmp/extract -xvf ubootchart.tgz

so i give this command it say no directory in tmp so i manually create directory in /tmp/extract
then it extract files in extract folder

 Replace every “sbin/init” with “sbin/ubootchartd” in /init:
sudo sed -i 's@sbin/init@sbin/ubootchartd@g' /tmp/extract/init

then i give this command it again says no init directory in extract

so how i do that its only 2 line wiki so how i understand

then i use script to extract core.gz in tmp folder it create folder core_extract then in use this folder to extract ubootchart by this command
sudo tar -C /tmp/core_extract -xvf ubootchart.tgz
after that i give this command
sudo sed -i 's@sbin/init@sbin/ubootchartd@g' /tmp/extract/init

all work good


after that i pack the extracted folder it give me core.gz then i boot that core.gz but i don't see any file in /var/log related to ubootchart

please tell me that its write procedure or if not so plz tell me what to do next

when i open top /sbin/ubootchartd_bin is running
thanx

[Misalf]

Your second attempt is correct but, as described on the wiki page, you also need to kill the bootchart process in order for it to write the log.
I put the following command in  ~/.profile  (below the .ashrc stuff and above the startx stuff) and did a backup before reboot.

Code: [Select]

[ -f "/sbin/ubootchartd_bin" ] && sudo killall -USR1 ubootchartd_bin

After reboot, load bootchart-pl.tcz (not bootchart-py.tcz) and create the SVG image.
I used these commands to convert it to a .PNG image:

Code: [Select]

tce-load -i librsvg && rsvg-convert -a -f png -o /tmp/my_bootchart.png /tmp/my_bootchart.svg


[Misalf]

Another wow! Drastically reduced boot time. All those busy boxes are gone after editing tc-functions.

However, I don't think that's just great since, while booting, I think coreutils.tcz complains about missing libgmp.so.10 even though gmp.tcz is already loaded. Also every extension after coreutils.tcz in onboot.lst won't get loaded at all.

https://db.tt/njIcZEC4

--

BTW, not recreating the font cache didn't seem to have any result regarding entire boot time. Anyway I'll put in in bootlocal.sh when I think need it.

[Misalf]

Oh, yes... coreutils replaces busybox counterparts with gnu ones. Since I disabled busybox'es aliases, the system tryes to use the gnu programs just after loading coreutils.tcz but they're not ready to be used while loading extensions on-boot. I removed coreutils.tcz from onboot.lst.

However, bootchart don't really gives more info, or does it?

With  showapps  boot code
https://db.tt/D3M0UVBG

With  showapps=foo  boot code (I added this one to just shows the .LSTs and a rotdash but no .TCZs)
https://db.tt/pb7WFwCP

[curaga]

Ok, I found the 800+ forks were caused by depmod. Misalf, you can restore your system to how it was (well plus font changes obviously ).

[malikawan]

Misalf thanx thanx alotttttttttttttttttttttttt doneeeeeeeeeeeeeee

again thanx

[malikawan]

Misalf  thanx and my bootchart here

https://www.dropbox.com/s/u905a5xf8kzng6g/new.jpeg?dl=0

[gerald_clark]

Does /tmp/my_bootchart.png already exist?
Does  tc have permission to write that file?
Try deleting it first.

[malikawan]

Thanx gerald_clark  you are rite tmp/my_bootchart.png already exist when i delete it will create for me

[curaga]

malikawan, your chart shows CPU peaking almost constantly. That means there's little that can be optimized, other than doing less (load less extensions, etc).

[malikawan]

Thanx sir curaga for ur time to see my bootchart but it is not real system this was virtual box bootchart i am upload tomorrow the real pc bootchart then plz also suggest me that system boot in 5 sec with persistent home opt and tce folder

[malikawan]

sir curaga this is my pc bootchart plz and suggestion or comments

https://www.dropbox.com/s/mssvgzug7nrlz78/my_bootchart.png?dl=0