Mailing List Archived Message #148

From: "Doug Bissett" <> Full Headers
Undecoded message
Subject: Re: [Virtualized eCS] Virtual box 6.0.14 r 133895 AOS 5.0.3 tcpip issue
Date: Fri, 17 Jan 2020 16:09:32 -0700 (MST)
To: "Virtualized eCS Users Mailing List" <>

On 2020-01-17, at 21:54:07, Massimo S. wrote:
>Il 17/01/2020 21:44, Massimo S. ha scritto:
>>Il 17/01/2020 21:09, Massimo S. ha scritto:
>>>Il 17/01/2020 19:42, Doug Bissett ha scritto:
>>>>On 2020-01-17, at 18:12:36, Massimo S. wrote:
>>>>>now there is a new issue :D
>>>>>if i transfer a big file, after about 20 seconds the IP stop to
>>>>>and you can't even ping it from another pc in the lan...
>>>>>anyone had the same experience?
>>>>Have you still got 2 CPUs defined? Use only one.
>>>no Doug, it's not
>>>it's all the afternoon that i'm running with just one CPU
>>>and i've the stack ip that works completely randomly
>>>(also see that with 2 cores i ftp at 8MB/sec
>>>with one core at 4MB/sec it's not acceptable speed
>>>so if my speed is limited to 4MB/sec i will not use virtual box at
>>>i've seen before this kind of issues
>>>in the past there were IRQ conflicts (on bare metal)
>>i've put up again the AMD PCNet-FAST III and as a "miracle" :)
>>the tcpip is back to work perfectly
>>1 core : 4,4MegaBytes/sec ftp datarate
>>2 cores: 7,4MegaBytes/sec ftp datarate
>i add even more details
>4 cores: 11,7MegaBytes/sec ftp datarate
>i'd say full 100Megabit full duplex datarate
>>for my needs 4,4MB/sec is not acceptable, too much slow for a
>>expecially when they have to bkup GB of data...
>>so the problem is not the multi core configuration
>>the problem is the intel pro 1000 virtual nic
>>maybe the drivers i've used E1000.OS2 and E1000_C.OS2
>>i'd use E1000B.OS2 (multimac32) but it's not compatible
>>any suggestion for the best driver to use in the guest VM for the
>>pro 1000?

Use the Multimac MMLEM.OS2 driver. The IBM drivers never
worked. E1000B.OS2 is the OLD Multimac driver. It will sometimes
work, but not very well. PCNet-FAST III is a 100 Mbit driver.

I am not sure what you are actually seeing with more than one core.
That should not make any difference to network activity, but it can
cause hangs, and other weird things.
From Doug Bissett's ArcaOS system
dougb007 at
... Unable to locate Coffee -- Operator Halted!

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