MaxHitZ Posted April 6, 2013 Share Posted April 6, 2013 Seems like Ive got a bunch of gremlins hiding in my controllers somewhere, transfer speeds from disk to disk in my n54l are like 2-3mbps formatted using vsphere - windows 7vm Link to comment Share on other sites More sharing options...
ikon Posted April 6, 2013 Share Posted April 6, 2013 Can't help but believe that it's got something to do with vSphere and the VM. Have you tried using some spare drives and just doing a plain installation, and then testing? Link to comment Share on other sites More sharing options...
MaxHitZ Posted April 7, 2013 Author Share Posted April 7, 2013 transfer speeds are like 2-4mbps, as is the network. After googling these issues seems its vmware related, its like they throttle write speed or something. As im new to vm's its proving difficult to find a solution. To be sure, im trying a standalone installation of ubuntu... Link to comment Share on other sites More sharing options...
ikon Posted April 7, 2013 Share Posted April 7, 2013 I'd almost bet money the standalone Ubuntu will be a lot faster. Link to comment Share on other sites More sharing options...
MaxHitZ Posted April 7, 2013 Author Share Posted April 7, 2013 ya, that was a safe bet i'd imagine. What options do i have regarding opening up transfer speed across my vm? Link to comment Share on other sites More sharing options...
jmwills Posted April 7, 2013 Share Posted April 7, 2013 You might want to take a look at this article. http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1038827 Link to comment Share on other sites More sharing options...
ikon Posted April 7, 2013 Share Posted April 7, 2013 jmwills, do you really think Jumbo Frames could make that much of a difference? I guess one question is whether the HD to HD transfers are within a single VM or between VMs. Link to comment Share on other sites More sharing options...
MaxHitZ Posted April 9, 2013 Author Share Posted April 9, 2013 In this case, it is HD to HD on the same vm Nice little anomolie here, i just copied a 900mb file in about 20 seconds, i thought all my muckin round had made an impact, so i tried to shift a few gb... heres the thing, it starts off at 30, 31, creeps up a little bit 33, 34, 35 gets hit by a truck or something, then slams down 29, 28, 27, 26, 22, 19 etc etc. all the way down to 5 or so Link to comment Share on other sites More sharing options...
ikon Posted April 9, 2013 Share Posted April 9, 2013 That sounds a lot like a cache getting full. IOW, things go great at the start because the data is being written to a disk cache on the destination VM. When the cache gets full (because the data can't be written to the physical disk fast enough to keep the cache from filling up), things really slow down. An interesting phenomena of cache filling issues is that they are more of a problem with large volume than small. So, for example, take an HDD with a 1GB cache: a 1 GB file might copy really quickly but a 2 GB file might not. This is not real-world; it's just for illustration. Link to comment Share on other sites More sharing options...
MaxHitZ Posted April 10, 2013 Author Share Posted April 10, 2013 im going to try esxi 4.1 update 3, see if that changes anything Link to comment Share on other sites More sharing options...
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