Delete kernel debug related parameter for performance

Those deleted kernel parameters are extremely heavy debug.
The boot process is rather slow on machines which has a
complicate motherboard and lots of pci devices(Lenovo RD640).
The debug process costs so much resouce, evetually it will impact
normal functions, such as cpus are so busy dealing with debug
info in kernelspace, they do not have time to reponse udev
event in userspace and failed to bring up pci devices.

Change-Id: I964c5fbc7f5b7d0ba6d1dd0166db3e4234179afa
Closes-bug: #1632592
This commit is contained in:
Wei Hui 2016-10-14 11:24:51 +08:00
parent 075fc9e257
commit babe668c21
1 changed files with 1 additions and 1 deletions

View File

@ -3,7 +3,7 @@
#post_script_file: /tmp/my_custom_script
root_ssh_authorized_file: /root/.ssh/id_rsa.pub
# Extended kernel PXE options
extend_kopts: "biosdevname=0 net.ifnames=1 debug ignore_loglevel log_buf_len=10M print_fatal_signals=1 LOGLEVEL=8"
extend_kopts: "biosdevname=0 net.ifnames=1"
# Choose the Ubuntu release (currently supports only Xenial). Keep in mind,
# that you also should fix 'kernel_flavor' parameter.
ubuntu_release: xenial