Thanks for getting back to me on this. Sorry for the slow response, did not
get (or see?) an email notification about an update.
I'll try the -47 kernel you referenced but I'm skeptical since the
failure occurs on the -46 and the -47 doesn't show any changelog for the
ipvs refcount issue. Nor d
Well, my apologies. I retract my skepticism! Your referenced -47
kernel above appears to have fixed the problem, while the stock -47
kernel showed the failure when I tested it this evening first (I already
had the distributed 4.15.0-47 kernel installed, then I removed it and
installed your refe
I'd like to note that I tested/verified BOTH these kernel version in
their respective Proposed states that have the ipvs fix. We really
most need the 16.04 4.15 hwe kernel released, which appears to be in
progress but this is a bionic bug so its unclear if another step is
required.
These kernels
Public bug reported:
On our 16.04LTS (and earlier) systems we used the ipvsadm --ops UDP
support (one-packet scheduling) to get a better distribution amongst
our real servers behind the load-balancer for some small subset of
applications.
This has worked fine through the 4.4.0-xxx kernels. But wh
Thanks so much Joseph! My apologies on not seeing this earlier that you
had a test kernel ready, I was offsite almost all of last week and
swamped. Will download it now and test it later this evening or
tomorrow morning in my test rig. By any chance, so as to aid my
systemtap monitoring, do you
Joseph, the commits you've included appear to be correct to me. I've
tested this kernel as best I can without the dbgsym package. I really
could use that package so I could verify the performance with "perf" as
well as use "systemtap" to verify stuff is going down the right paths.
But I did use t
** Tags added: verified-test-kernel-works
--
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https://bugs.launchpad.net/bugs/1618299
Title:
IPv6 with LVS Performance issue in latest 3.13LTS kernels
Status in linux package
Thanks so much for the rapid turnaround on this report guys. I've
modified the tag to the verification-done-trusty, as requested. I
pulled down all the linux-image, source, and dbgsyms for the
3.13.0-97.144 kernel from proposed for installing/testing. I verified
the source code manually as well.
Public bug reported:
We experienced a major performance regression between 12.04's 3.2 kernels
and 14.04's 3.13 kernels when using IPv6 with the LVS load-balancing
facility. Through analysis of perf events and a workaround we've
determined that an upstream fix is available which addresses the iss
Christopher, its looks like I actually have a reasonable record of the
VMWare version I was using for this reproduction despite having
regularly updated my VMWare. . The VMWare installer has a log that
shows that at the time of the reproduction/report here I was running the
VMWare vmplayer 4.0.4
n this score would be
adequate for that.
-- Marc --
On Fri, Aug 9, 2013 at 7:35 PM, Christopher M. Penalver <
christopher.m.penal...@gmail.com> wrote:
> Marc Hasson, could you please test the latest upstream kernel available
> following https://wiki.ubuntu.com/KernelMainlineBu
Summary:
Tried 3.11rc7, very happy with how it behaved in our testing. Tried
this week's 3.12rc5, disappointed that a "step backwards" was taken
on that one for us. The difference for us was in the "low memory killer"
that was configured in the 3.11rc7 build but not the 3.12rc5 system.
Details b
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