Intel I350 base-T BONDED PAIR throughput SUCKS!
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Disable VMQ on the NIC devices if that option is available.
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@dafyre said:
Disable VMQ on the NIC devices if that option is available.
This is the biggest thing I have found.
VMQ is enabled by default and likely his hardware does not support it.
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I've gotten to where I disabled VMQ and *Offload on any network card that is in my system these days... Especially if I am going to use Hyper-V... 99% of the times I've seen either (or both) used, it has caused some really awful performance!
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anybody know what sort of blip i'll see if i disable vmq in a live environment? a second or two? would end users notice?
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I doubt that they would notice, but it's possible.
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lol yeah, that's the consensus. meh, we dont know haha
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Not sure I've ever heard of someone trying it. Maybe just do it during lunch? What kind of workload(s) is it?
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sql tier to EMR and a dc
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Anything external talking to SQL Server?
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DC will definitely be fine.
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all of the workstations that access EMR (60 or so) query sql
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It has been over a year since I did this on a running system. I do not recall any big issue.
Performance was so crappy though that even a quick blip would have just be ignored.
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I like Scott's idea, warn the management at least that you are doing it, and do it over lunch if they approve, otherwise schedule for tonight.
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they havent been whining about performance today so i'm just gonna wait til tonight
