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Comments
30MB/s is probably enough sequential write to perform most tasks, yes. Disk I/O by the way of DD testing is usually just a competition for higher numbers but in reality nobody needs 180MB/s to perform every day VPS tasks.
IMHO 30mb/s is a little bit low
BuyVM
Hostigation
SecureDragon
I would say no... just because a provider is "budget" doesn't mean the quality has to be poor.
True, but what's considered okay for a budget VPS?
I think anything above 50mb/s would be alright, anything below... I'd be a bit wary.
16384+0 records in
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1073741824 bytes (1.1 GB) copied, 7.69921 s, 139 MB/s
From ErrantWeb.
An unmanaged provider that strives to bring their clients the best quality they can. I'm not saying we should always be on par with the F500 companies... but I firmly believe that the "oh well, I get what I pay for" mentality is doing nothing but hurting the market for us.
My BuyVM is not that fast:
dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
1073741824 bytes (1.1 GB) copied, 14.7777 s, 72.7 MB/s
but very generous with ram :-p
free
total used free shared buffers cached
Mem: 4294967295 0 4294967295 0 0 880800
-/+ buffers/cache: 4294086496 880799
Swap: 0 0 0
wtf?¨That is... weird
Mine neither, its 65 mb/s
But anyway thats fast enough i'd say
@LES @gsrdgrdghd - Mind popping in a ticket for us? IO shouldn't be that low.
And yeah, the Ram issue is some funky bug Fran's currently working on :P
Edit: For the record, that dd took place on node kvm02. Here's another quick one for consistency:
Speaking of awful disk I/O, 123Systems:
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1073741824 bytes (1.1 GB) copied, 95.3984 s, 11.3 MB/s
As compared to my other VPS's such as @Aldryic posted.
I/O is fine for a 15$/Y but if you like to look into it (ram bug also here) it is on 128 (node24)
You guys are probably on older nodes that are still not redone
The KVM upgrades have been quite awesome for sure!
Francisco
I think the real question is, at what point is it detrimental to everyday VPS performance?
FWIW on my (at work) desktop with a single 7200rpm sata drive, i get an average of about 65 MB/s.
that's on node25. It's fast enough for my needs and faster than lots of budget vps providers so I have no complain. Also my other vps on another node is having ~175 MB/s ave. w/c is excellent i think
Very true, but that's dedicated to pretty much you
Things like nightly/hourly crons all fire at once and will really drag on a nodes IO if it's anything big. Distros like CentOS have 'rpmq' updating hourly for some retarded reason and that'll try to eat a full core no matter what.
@dnom - You're on a pony6-1 setup, should improve greatly whenever you get pulled.
Francisco
Our "limit" is 50MB/s, if it goes any lower (consistently) we consider it to slow for production.
Consistency is better than performance though and should be the true test of disk I/O. If your VPS is consistently 50MB/s then it's much much better than a VPS that constantly fluctuates between 100MB/s and 10MB/s.
And to add more reference. My desktop I built was capped at 38MB/s which was still usable with Windows 7 although sluggish, if I wasn't running a GUI I'm sure 38MB/s would have worked great.
Although I don't really need high disk i/o speed It'll definitely feel better being on a node pulled by stronger ponies!
$30/year Hostigation KVM:
or created, errr Franned into existence
That would be more accurate, yes
errant web
was like 175 when i first got it (probably cuz new), but now its settled around 150
Use the <pre> tags.
Yes, its perfectly fine if the host is good. If its a new provider then chances are that they will oversell and you will see 2.3MB/sec etc
My hostigation KVM:
My Alienlayer OVZ:
The alienlayer VPS feels sluggish sometimes, if I ran ioping I bet the latency would be all over the place, so raw I/O speed is just a part of it really.
**AllGamer **VPS
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1073741824 bytes (1.1 GB) copied, 3.6868 seconds, 291 MB/s"
Double Post -Sorry bad connection-
raid10
raid1
Your company isn't Budget at all.
That isn't budget too ¬_¬
Also, how a Raid1 can be the same as Raid10