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Ricky

Transfer slow between host and VM

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I use VMWare Workstation 12 on Windows 10, I can see network interface is 1Gbps in DSM which installed in VM.

But it's very slow copy file between host machine and DSM, about 20MB/s~30MB/s, I use bridge network.

Any one have this issue? Thanks.

Edited by Ricky

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/volume1/upload:)time dd if=/dev/zero of=test.dbf bs=1M count=1000 oflag=direct
1000+0 records in
1000+0 records out
1048576000 bytes (1.0 GB) copied, 7.8025 s, 134 MB/s
real    0m7.815s
user    0m0.003s
sys     0m1.701s
/volume1/upload:)dd if=test.dbf bs=1M count=1000 of=/dev/null
1000+0 records in
1000+0 records out
1048576000 bytes (1.0 GB) copied, 8.19534 s, 128 MB/s

I used dd to test disk IO, should I look at the network interface problem?

 

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I moved VM to Virtualbox and network transfer speed up to 30M/s but still poor performance, also tested use a individual Intel network interface got the same speed.

 

Any one has this problem?

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