[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete = Expired
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1388276
Unfortunately I cannot upgrade the bios of this machine due to lack of
physical access to it. However I doubt that the bios (updated or not)
should cause such a slow down. Also note that this happens on a
different machine as well for which I'm going to add the bios
information to this report.
--
output of dmidecode for other machine
** Attachment added: output of dmidecode for other machine
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388276/+attachment/4251937/+files/bios.txt
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
--
You received this bug
Emmanuel Stapf [ES], regarding the other hardware, please file a new report so
it may be tracked:
ubuntu-bug linux
** Changed in: linux (Ubuntu)
Status: Confirmed = Incomplete
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
Emmanuel Stapf [ES], as per
http://www.asus.com/Commercial_Servers_Workstations/DSBFDESAS/HelpDesk_Download/
an update to your BIOS is available (1007). If you update to this following
https://help.ubuntu.com/community/BiosUpdate does it change anything? If it
doesn't, could you please both
apport information
** Tags added: apport-collected utopic
** Description changed:
I've just upgraded two servers to use 14.10 (they were before at 14.04) and
found that my builds were taking much longer:
- A jenkins regression test suite that took about 135 minutes is now taking
about 300
I'm also confirming that the longer tasks is now back to about 135
minutes.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1388276
Title:
14.10 about 2 to 3 times slower to perform concurrent tasks
apport information
** Description changed:
I've just upgraded two servers to use 14.10 (they were before at 14.04) and
found that my builds were taking much longer:
- A jenkins regression test suite that took about 135 minutes is now taking
about 300 minutes.
- A C complation tasks
The first set of files sent by apport-collect is when running kernel
3.13, the second set is when running kernel 3.16.
I can easily send a package of files that should reproduce the problem.
The only requirement is to have gcc/make installed and some files needed
to compile the C package.
--
While I was watching the C compilation going on on my 8 cores, I noticed
the following differences n the CPU usage reported by top. In kernel
3.16 all gcc instances (actually cc1) are using 25%, but with 3.13 they
are all between 97 or 99%.
Looks like a scheduler bug of some sort.
--
You
I had the idea to downgrade the kernel to 3.13 (i.e. the latest kernel
from the 14.04 release) and now I get the proper timing for the C tasks:
with gcc 4.9: 497.400u 11.065s 1:43.49 491.3% 0+0k 191184+175312io 542pf+0w
with gcc 4.8: 487.047u 12.155s 1:45.83 471.6% 0+0k 26304+172720io 411pf+0w
Thank you for taking the time to report this bug and helping to make
Ubuntu better. It seems that your bug report is not filed about a
specific source package though, rather it is just filed against Ubuntu
in general. It is important that bug reports be filed about source
packages so that people
** Package changed: ubuntu = linux (Ubuntu)
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1388276
Title:
14.10 about 2 to 3 times slower to perform concurrent tasks
To manage notifications about
** Tags removed: performance
** Tags added: regression-release
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1388276
Title:
14.10 about 2 to 3 times slower to perform concurrent tasks
To manage
14 matches
Mail list logo
