Mantiz Venus - different SSD performance using enclosure ports versus MacBook po...
 
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Mantiz Venus - different SSD performance using enclosure ports versus MacBook ports?  

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franketto
(@franketto)
Trusted Member
Joined: 3 years ago
 

For sure, but I simplified a lot my setup... I want to test a difficult one Smile

 

I will try to set this config:

1x board with 2x M.2 type B - USB 3.1 Gen2 Type C

2x adapter M.2 to SATA port

2x SATA port multiplier board

4x HD 6TB (2xHD on each port multiplier)

All in Raid0. If all goes well the speed should be more or about 870MB/s, so I should be capable to test the full USB 3.1 bandwidth. But I'm searching for troubles with all of that connections 😉 Anyway I'll test and will tell. In a month or so, because I must wait from china the adapters.

If it will fail, I will buy 2x M.2 SSD and will do the "normal" test  Smile

So, anyway I'll tell you something.

 

But at this point, I'm looking if there are some other spacely enclosures to put my 4HD into, apart Mantiz: I will not use the USB 3.0 onboard... Maybe I will open another thread, because I don't want to hijack the Mantiz discussion Smile

Or I could still buy the Mantiz and use its USB 3.0 ports for objects non consuming bandwidth and for the Gigabit: also this is not a bad idea!

 

EDIT:

Using only the Gigabit, will dynamic allocation use only the 1Gb/s or all the 5Gb/s as well?

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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nando4
(@nando4)
Noble Member Admin
Joined: 4 years ago
 

@franketto, Mymantiz_John told us here:

Posted by: Mymantiz_John

The design is USB 3.0 Gen I, not GEN II 10GB.

LAN sits under the port3 USB 3.0 hub as I noted here, together with the SATA controller. It is quite possible the 4xUSB 3.0 ports are hosted there as well. That would then limit the combined bandwidth of ALL those devices to 5Gbps.

I'll be curious about your storage testing results. Much appreciation for sharing your findings there Smile

eGPU Setup 1.35    •    eGPU Port Bandwidth Reference Table

 
2015 15" Dell Precision 7510 (Q M1000M) [6th,4C,H] + GTX 1080 Ti @32Gbps-M2 (ADT-Link R43SG) + Win10 1803 [build link]  


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franketto
(@franketto)
Trusted Member
Joined: 3 years ago
 
Posted by: nando4

@franketto, Mymantiz_John told us here:

Posted by: Mymantiz_John

The design is USB 3.0 Gen I, not GEN II 10GB.

LAN sits under the port3 USB 3.0 hub as I noted here, together with the SATA controller. It is quite possible the 4xUSB 3.0 ports are hosted there as well. That would then limit the combined bandwidth of ALL those devices to 5Gbps.

Yes, I edited my post, I was thinking if the dynamically allocation could save some band if it "sees" that's ONLY used by Gigabit, or if it sees ANY of the devices ask band it will allocate the total 5Gb/s apart the real usage, accordingly reducing the eGPU.

 

EDIT:

So you think it will always allocate 5Gb/s because it can't know how much band it will need, considering every request a 5 Gb/s request max, considering all one USB 3.0 port?

That's bad because if you put a simple mouse, it will ask always a little band to the pc, but the allocation would be always of 5Gb/s... wasting a lot !

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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zwubel
(@zwubel)
Eminent Member
Joined: 3 years ago
 
Posted by: nando4

@ zwubel, when you click on the Generic Superspeed USB Hub (port 3) hosting the SATA & LAN is it reported as a 5Gbps port? Also, when you plug something into a Venus USB 3.0 port does it also appear below this port3 (also possibly port3 off the root port3), or off another Superspeed USB Hub? Please post a pic if you can.

 

Yes, the hub is reported to be capable of USB 3.0 Super Speed (HWiNFO even reports the supported version as 3.1, not exactly sure why). Have a look at the screenshot below (the right column shows the info of said port 3). Before taking the screenshot I plugged two different USB 3.0 enclosures into the front USB ports of the Venus. One of them (green square) is indeed listed under the port 3 hub that also hosts the SATA & LAN, but the other one (red square) is falsely recognized as a USB 2.0 device for some reason (when I click on it in HWiNFO, it says that it's a USB 3.0 device connected to a USB 2.0 port). That's what I was talking about here. Mind you, so far I have not found any other USB 3.0 device that is falsely recognized on the Venus as USB 2.0 so I'm assuming it's a specific compatibility issue with that enclosure and the Venus since it works fine when I plug it into my laptop directly.

venus usb hub

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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nando4
(@nando4)
Noble Member Admin
Joined: 4 years ago
 

@zwubel, with something plugged into the USB 3.0 Venus ports, can you capture the hwinfo->PCI BUS screen as you did shown previously here? This will show which is the USB parent port.

eGPU Setup 1.35    •    eGPU Port Bandwidth Reference Table

 
2015 15" Dell Precision 7510 (Q M1000M) [6th,4C,H] + GTX 1080 Ti @32Gbps-M2 (ADT-Link R43SG) + Win10 1803 [build link]  


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zwubel
(@zwubel)
Eminent Member
Joined: 3 years ago
 

Oh sorry, didn't even notice that I expanded the Ports->USB branch. As far as I can make out it's exactly the same, though:

venus usb hub

I connected the same two USB devices for this screenshot.

EDIT: Or did I misunderstand just now what you wanted me to do? Smile

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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Trepach8225
(@trepach8225)
Active Member
Joined: 3 years ago
 

Friends.  I would like to add an opinion and would agree with @Mymantiz_John regarding choice.  There are more and more options in the eGPU sphere which bodes well for all of us.  Every unit has its positive and negative aspects, and there are some great ideas for DIY and modifications.  However, I chose the Mantiz Venus precisely because I was looking for more than simply a eGPU box.   I desired an eGPU/docking station, knowing full well that could impact some GPU performance.  There is something elegant about coming into the office and plugging in just one cable.  If you desire only a box to house your GPU then there are many good option, yet, some of us are looking for more.  It's early days in the eGPU/TB3 field, but we have come a long way when we consider what things were like only 24 months ago. Thanks to Mantiz and other companies that are forging ahead. Cheers!

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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nando4
(@nando4)
Noble Member Admin
Joined: 4 years ago
 

zwubel, thank you. We see the Mantiz hosts it's ports using a 05e3:0617 Genesys 5Gbps USB 3.1 Gen1 hub.  Genesys' range of USB 3.1 hubs is at:  http://www.genesyslogic.com/en/product_list.php?1st=3&2nd=10

USB 3.1 Gen1 is our 2008 USB 3.0 undergoing a name change:

https://www.msi.com/blog/usb-3-1-gen1-gen2-explained

USB 3.0 was launched in 2008, it provided an unprecedented increase in transfer speeds (up to 5Gbps) and added more power to connect more peripherals. In 2013 another major leap was made with the introduction of USB 3.1, doubling the speeds to as much as 10Gbps!

When USB 3.0 became USB 3.1 Gen 1

Recently however, the USB-IF organisation published an article where they announced that USB 3.0 connectors capable of 5Gbps (SuperSpeed) would now be classified as USB 3.1 Gen 1. While the new USB 3.1 connectors, capable of 10Gbps (SuperSpeed+) would now be classified as USB 3.1 Gen 2.

USB 3.0 is now called USB 3.1 Gen 1 (Speed up to 5Gbps)
USB 3.1 is now called USB 3.1 Gen 2 (Speed up to 10Gbps)

This tells us then:

- the total combined bandwidth for all Mantiz Venus ports (SATA+4xUSB 3.0+LAN) is 5Gbps
 


With this 5Gbps USB 3.1 Gen1 hub hosting the Mantiz Venus ports, what is the maximum combined bandwidth available to the enclosure ports?

5Gbps or 625MB/s

The Mantis Venus is pumping SATA, LAN and 5*USB 3.0 through the bandwidth of a system's single USB 3.0 port!!  One thing that could have helped here is ..

 

Why didn't the Mantiz Venus implement a 10Gbps USB 3.1 Gen2 interface for it's ports?

Why wasn't a bigger 10Gbps USB 3.1 Gen2 hub used to host the ports? Mymantiz_John alluded earlier on that a USB-C 3.1 port would be added to the next revision of the product. Will it be used there?

eGPU Setup 1.35    •    eGPU Port Bandwidth Reference Table

 
2015 15" Dell Precision 7510 (Q M1000M) [6th,4C,H] + GTX 1080 Ti @32Gbps-M2 (ADT-Link R43SG) + Win10 1803 [build link]  


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Mymantiz_John
(@mymantiz_john)
Vendor
Joined: 4 years ago
 

To avoid Misleading & rumors around this forum.

Please check the below test data:

An upcoming Firmware:

Host: 2017  MBP 15" 

Device: Mantiz Venus EGPU with MSI 1060 6G

CUDA Z:

 2017 07 24 下午6.41.52

Copy a 25G file from Device to Host ( USB 3.0  HDD ) , see CUDA Z Numbers here:

 2017 07 24 下午7.08.10

Copy 25G file from Host to Device ( USB 3.0 HDD ), See CUDA Z numbers here:

 2017 07 24 下午7.11.53

The New FIRMWARE is going to be the dynamic. 

 

 

Mantiz: ● ●


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Mymantiz_John
(@mymantiz_john)
Vendor
Joined: 4 years ago
 

Update In Game test

Host: 2017 MBP KabbyLake 15"

Device: Mantiz Venus + 1060 in Bootcamp

Game Far Cry Primal ( PCI bandwidth Heavy Game )

Mantiz FIRMWARE: Upcoming one

 2017 07 24 下午7.53.06

Min: 51 FPS

AVG: 63FPS

Max: 74FPS

Condition II:

Copy 25G from Host to Device USB 3.0 HDD 

See the picture

 2017 07 24 下午7.58.12

Result:

 2017 07 24 下午8.02.21

Min: 52

AVG:62

MAX:73

While Host to Device is sending 98-100MB data/ per sec to the device, In game Performance there's " NO DROP " " NO PERFORMANCE ISSUE"

 

Mantiz: ● ●


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