On 9/25/18 6:23 AM, lampahome wrote:
I put image on the 3xSSD RAID0, and the raw performance of block device is
read:1500MB/s, write:1400MB/s
The bottleneck I thought is the number of backing files.
The more images I divide into, lower the read performance
An obvious reason for that: right
I put image on the 3xSSD RAID0, and the raw performance of block device is
read:1500MB/s, write:1400MB/s
The bottleneck I thought is the number of backing files.
The more images I divide into, lower the read performance
Write performance looks like bad originally.
On 9/19/18 1:46 AM, lampahome wrote:
All images are on the RAID0(3 SSD).
Below is the performance:
image numberseq. read(MB/s)seq. write(MB/s)
11480 60
16 1453 36
32
>
> All images are on the RAID0(3 SSD).
>> Below is the performance:
>>
>
image numberseq. read(MB/s)seq. write(MB/s)
11480 60
16 1453 36
32 1450 36
64
On 9/18/18 2:06 AM, lampahome wrote:
I test nbd performance when I divide image into multiple backing files.
The image is 512GB, I divide it into 1, 16, 32, 64, and 128 backing files.
Ex: If I divide it into 16 files, each backing file is 512/16=32GB.
If I divide it into 64 files, each backing
I test nbd performance when I divide image into multiple backing files.
The image is 512GB, I divide it into 1, 16, 32, 64, and 128 backing files.
Ex: If I divide it into 16 files, each backing file is 512/16=32GB.
If I divide it into 64 files, each backing file is 512/64=8GB and so on.
*Mount
