[OmniOS-discuss] UPCOMING: End of Support Life approaching for OmniOS r151010

[Dominik Hassler]

never mind, it's getting filled later on.

should have had a look at the whole of it before starting to bark :/

sorry for the noise!

On 02/20/2015 11:14 PM, Dominik Hassler wrote:
> Dan,
> 
> I had a look at HVM-807 you mentioned.
> 
> Shouldn't line 251 in 'net/vnic.c' be
> for (i = 0; i < MIN(iovcnt, FRAMEIO_NVECS_MAX); i++, iov++) {
> 
> instead of
> for (i = 0; i < MIN(iovcnt, FRAMEIO_NVECS_MAX - 1); i++, iov++) {
> 
> As otherwise the last element of the frameio will not be used at all if
> iovcnt is greater than the frameio buffer size?
> 
> Kind regards
> Dominik
> 
> On 02/20/2015 09:17 PM, Dan McDonald wrote:
>>
>>> On Feb 20, 2015, at 2:58 PM, Tobias Oetiker <tobi at oetiker.ch> wrote:
>>>
>>> Hi Dan,
>>>
>>> I do not have a spare machine to test this, but if the dramatic
>>> network io performance regression for kvm present in r151012 has
>>> not been fixed in r151014 then we will be stranded on r151010.
>>
>> And the upstreaming of VND is likely not to happen with this release.  That blocks us from properly catching up with illumos-kvm-cmd.
>>
>> There are several commits (Starting with the March 19th one we can't bring in w/o VND) here:
>>
>> 	https://github.com/joyent/illumos-kvm-cmd/commits/master
>>
>> Currently, we only backport the most recent fix about QEMU using preadv/pwritev recklessly.  IF (big if) there are other commits we can backport, you could try it using the patches/ directory of omnios-build.  I'm thinking maybe HVM-807's may help you (provided that's indepdent of VND support).
>>
>> Have you seen anything with dtrace or lockstat that could give a clue to what's holding things up?  I don't recall seeing anything observed.
>>
>>> Judging from the echo on the ML, not many people seem to see this
>>> problem, or care about it.
>>
>> I'm sorry, but that does appear to be the case.
>>
>> Next week I disappear for other-customer work, but starting in March, I'm doing nothing but r151014.
>>
>> Dan
>>
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>>
>>
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