[PVE-User] Redis, huge overhead

[Germain Maurice]

Nobody, no idea ?


Le 09/12/10 20:01, Germain Maurice a écrit :
> Hi everybody,
>
> I wanted to test Redis VM feature on a KVM guest. I find it very slow 
> when populating with data.
> However, Redis seems to be slower than without VM activated.
>
> Just for fun, i tried to populate Redis on a VM guest and Redis 
> directly on the host (redis version 2.0.4 and same config file for 
> both). I made this test several times, flushing all the keys before 
> each test.
> I got these results :
>
> ++++ Redis on Proxmox host :
> 130> perl populate.pl
> Populating...done (49.2327530384064 secs)
> Quering redis hash...done (3.86193013191223 secs)
>
>
> ++++ Redis on VM guest :
> 0> perl populate.pl
> Populating...done (119.999486923218 secs)
> Quering redis hash...done (4.3238320350647 secs)
>
> - Populating (writing) : 49/120 = 59% difference
> - Quering (reading) : 3,8/4,3 = 12% difference
>
> Someone can explain me this huge difference when populating Redis ??
>
> Thank you..
>


-- 
Germain Maurice
Administrateur Système/Réseau
Tel : +33.(0)1.42.43.54.33

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