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Re: [Qemu-discuss] virtual disks perfermonca <=2MB/s

From: Mimiko
Subject: Re: [Qemu-discuss] virtual disks perfermonca <=2MB/s
Date: Mon, 20 Feb 2017 19:59:22 +0200
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.7.1

On 20.02.2017 18:45, Jakob Bohm wrote:
Is /tmp/ the same drive (mount) as /vdisks/ ?

Oh, really. /tmp is differen drive: an SSD mirror via MB sata 2 interface.

time dd if=/dev/zero of=/vdisks/test oflag=direct bs=64k count=16000
16000+0 records in
16000+0 records out
1048576000 bytes (1.0 GB) copied, 0.970587 s, 1.1 GB/s

real    0m0.972s
user    0m0.008s
sys     0m0.856s

/vdisks reside on a raidz2 zfs pool via PCI-E hardware raid used in IT mode to 
allow ZFS software raid. And it had 10x speed than SATA 2 :)

Mimiko desu.

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