On Monday, July 3, 2017 8:30:08 AM CEST taii...@gmx.com wrote:
> On 07/03/2017 12:24 AM, J. Roeleveld wrote:
> > On July 2, 2017 7:36:02 PM GMT+02:00, "taii...@gmx.com" <taii...@gmx.com>
wrote:
> >> On 07/02/2017 02:51 AM, J. Roeleveld wrote:
> >>> On July 1, 2017 11:23:06 PM GMT+02:00, "taii...@gmx.com"
> >> VM with quality performance.
> >> It'll always be faster than an emulated disk.
> >
> > Never noticed any performance issues. Using Xen and raw disk format to the
> > VMs.
> http://semiaccurate.com/2009/09/30/lsi-virtualizes-storage-hardware/
I am missing how to accessed the disks here in both options.
The difference in performance is far more then I ever saw, even with older
hardware.
With that difference, it seems their KVM configuration is rubbish.
> For me I have 3/4 the native copy speed, and the I/O for example
> extracting a zip is terrible.
I never noticed any real difference, even when the host managed the HBA.
How do you configure your VMs and which technology do you use?
> >>> Either the VM needs a fraction of a single disk. Or it needs multiple
> >>
> >> disks.
> >>
> >>> For the latter case, I prefer to pass an entire HBA.
> >>
> >> Which one do you have and does yours support FLR?
> >
> > Using a Supermicro card based on a LSI3008 chipset and dual expander
> > backplane. I can always add a second HBA of I need more bandwidth.
> >
> > What is FLR? Googling that gives me a lot of non IT related results.
>
> Function level reset, it is required to be able to assign devices to
> VM's without annoyance.
Passing to VM works flawlessly with this card. Didn't have any issues with
setting it all up.
> The 3K series supports SR-IOV so you probably have it.
> Could you run # lspci -vv?
Results from the VM attached.
I don't see any mention of SR-IOV in there.
My network-card does have this, but unless I can have the card do the bonding
and vlans, I see no use for it there either.
--
Joost
# lspci -vv
00:00.0 Serial Attached SCSI controller: LSI Logic / Symbios Logic SAS3008
PCI-Express Fusion-MPT SAS-3 (rev 02)
Subsystem: Super Micro Computer Inc SAS3008 PCI-Express Fusion-MPT SAS-3
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 63
Region 0: I/O ports at f000 [size=256]
Region 1: Memory at fbe40000 (64-bit, non-prefetchable) [size=64K]
Region 3: Memory at fbe00000 (64-bit, non-prefetchable) [size=256K]
Expansion ROM at fbd00000 [disabled] [size=1M]
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [68] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 4096 bytes, PhantFunc 0, Latency L0s <64ns,
L1 <1us
ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset+
SlotPowerLimit 0.000W
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset-
MaxPayload 256 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr-
TransPend-
LnkCap: Port #0, Speed 8GT/s, Width x8, ASPM not supported,
Exit Latency L0s <2us, L1 <4us
ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 8GT/s, Width x8, TrErr- Train- SlotClk+ DLActive-
BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range BC, TimeoutDis+, LTR-, OBFF
Not Supported
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-,
OBFF Disabled
LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB,
EqualizationComplete+, EqualizationPhase1+
EqualizationPhase2+, EqualizationPhase3+,
LinkEqualizationRequest-
Capabilities: [a8] MSI: Enable- Count=1/1 Maskable+ 64bit+
Address: 0000000000000000 Data: 0000
Masking: 00000000 Pending: 00000000
Capabilities: [c0] MSI-X: Enable+ Count=96 Masked-
Vector table: BAR=1 offset=0000e000
PBA: BAR=1 offset=0000f000
Capabilities: [100 v2] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt-
RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [1e0 v1] #19
Capabilities: [1c0 v1] Power Budgeting <?>
Capabilities: [190 v1] #16
Capabilities: [148 v1] Alternative Routing-ID Interpretation (ARI)
ARICap: MFVC- ACS-, Next Function: 0
ARICtl: MFVC- ACS-, Function Group: 0
Kernel driver in use: mpt3sas
Kernel modules: mpt3sas
