gstripe performance scaling with many disks

[Ivan Voras]

Vasil Dimov wrote:

> Here is what further tests showed:

> This are gstat screen shots during the test:
> 
> 1 drive:
> dT: 0.501s  w: 0.500s
>  L(q)  ops/s    r/s   kBps   ms/r    w/s   kBps   ms/w   %busy Name
>     8     12     12   1003  548.1      0      0    0.0   96.6| ggate100

> 8 drives:
> dT: 0.501s  w: 0.500s
>  L(q)  ops/s    r/s   kBps   ms/r    w/s   kBps   ms/w   %busy Name
>     6    116    116   1028   63.4      0      0    0.0   97.6| ggate100

> 17 drives:
> dT: 0.563s  w: 0.500s
>  L(q)  ops/s    r/s   kBps   ms/r    w/s   kBps   ms/w   %busy Name
>     5    185    178    848   18.9      0      0    0.0   88.8| ggate100

Ok, so ops/s is increasing but it's not conclusive. Does anyone know how
to get KB/t stats for synthetic geom devices?



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