I will look into bootcharts as soon as possible.
I was expecting more info from the log of step #6.
You will recall that rate limiting gave the following kind of output:
[ 17.062400] init: plymouth-upstart-bridge main process ended, respawning
[ 42.218430] audit_printk_skb: 177 callbacks suppressed
When /etc/sysctl.d/99-printk_ratelimiting.conf with
kernel.printk_ratelimit=0 was implemented, I expected detail on those
callbacks.
Instead, I got:
[ 17.530175] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 19.396738] init: plymouth-upstart-bridge main process ended, respawning
[ 44.236269] type=1400 audit(1437703237.706:71): apparmor="STATUS"
operation="profile_replace" profile="unconfined"
name="/usr/lib/cups/backend/cups-pdf" pid=2413 comm="apparmor_parser"
What happened between 19 secs and 44 secs? Remember, this is a fast 4
core machine.
I would appreciate your thoughts on that?
Then we can look at bootcharts.
Thanks.
** Changed in: apparmor (Ubuntu)
Status: Incomplete => New
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https://bugs.launchpad.net/bugs/1458014
Title:
audit_printk_skb slowing down boot
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