Performance hit for Intel systems on the way...

Evan

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Jan 6, 2016
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Even new scalable line and older cpu ‘can’ be slower, all depends on the products in use , unless you run certain databases or have some specific heavy io patterns likely you won’t notice.
 

eva2000

Active Member
Apr 15, 2013
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centminmod.com
Spectre, Meltdown: Most PCs will get slower because of the chip flaw fix

So does that mean almost all our beloved v1, v2, v3, and some v4 will be significantly slowed? ;(

well, amd isn't completely spared either if they start to get bsod..... oh well, time to buy more intel and amd stocks soon...
depends on work loads i.e. ones with alot of system calls will be impacted

FYI, Phoronix benchmarked KPTI + Retpoline on Ubuntu both Apache and Nginx and saw around 21-26% performance impact for Nginx using apachebench The Combined Impact Of Retpoline + KPTI On Ubuntu Linux - Phoronix.

I tested Centmin Mod Nginx with Siege bench on i7 4790K on CentOS 7.4 with KPTI only Kernel and got around 5.5% performance impact https://community.centminmod.com/th...nux-kernel-kpti-meltdown-spectre-fixes.13694/
 

Cressonnette

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Dec 4, 2016
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Evan

Well-Known Member
Jan 6, 2016
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Is it public knowledge that there is a firmware update for HPE gen9/gen10 hardware (ie E5 v3 onwards) and assume one planned for gen8 (E5 v1/2) but not g7’s

Has anybody been implementing this along with the software patches for ESX.
 

_alex

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Jan 28, 2016
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I would be quite interested how much patching will affect fabrics/network performance, both 40GbE and Infiniband.
I have the bad feeling this could be similar to what happens with IO.