Your disk I/O

AstoundingHost

Did a quick search and couldn't find any results so I thought I'd go ahead & make a thread. Post your disk I/O results here.

dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync

Here's one of mine:
1073741824 bytes (1.1 GB) copied, 5.78699 s, 186 MB/s

rds100

For the 156th time?

AstoundingHost

Turns out there's one here: http://www.lowendtalk.com/discussion/42/test-the-disk-io-of-your-vps

Search wasn't exactly being effective..

http://puu.sh/WRYJ

Wrong keywords it seems.

rds100

Let's at least discuss and propose some other standard tests in addition to the boring dd test.
Maybe also:
ioping -c 10 .
ioping -R .

@serverbear any ideas for the tests? This is strictly about disk IO tests, not CPU/network/etc.

VirtixTechnologies

[root@testvps ~]# wget freevps.us/downloads/bench.sh -O - -o /dev/null|bash
CPU model : Intel(R) Xeon(R) CPU L5420 @ 2.50GHz
Number of cores : 8
CPU frequency : 2500.224 MHz
Total amount of ram : 2048 MB
Total amount of swap : 3096 MB
System uptime : 16 min,
Download speed from CacheFly: 54.1MB/s
Download speed from Linode, Atlanta GA: 8.39MB/s
Download speed from Linode, Dallas, TX: 15.3MB/s
Download speed from Linode, Tokyo, JP: 6.45MB/s
Download speed from Linode, London, UK: 8.42MB/s
Download speed from Leaseweb, Haarlem, NL: 10.3MB/s
Download speed from Softlayer, Singapore: 5.94MB/s
Download speed from Softlayer, Seattle, WA: 13.8MB/s
Download speed from Softlayer, San Jose, CA: 17.9MB/s
Download speed from Softlayer, Washington, DC: 42.7MB/s
I/O speed : 126 MB/s

prometeus

@rds100 said: For the 156th time?

nobody use vps for anything else than run some tests. we should prepare a template with only a busybox, ssh, dd and wget :P

miTgiB

@prometeus said: we should prepare a template with only a busybox, ssh, dd and wget :P

How would they run unixbench?

prometeus

@miTgiB said: How would they run unixbench?

a busybox alias would return the cached results taken once a day on similar vps

miTgiB

@prometeus said: return the cached results

So there goes 1/2 your customer base

serverbear

Theres more options than just dd:

IOPing
Iozone
Bonnie++
FIO
hdparm

We're implenenting FIO at the moment for more accurate read/write speeds + IOPS.

Here's an example of outputs from the different tests: http://liuyonggang.blog.com/2011/10/21/disk-performance-characterization-dd-fio-hdparm-bonnie-seekmark-and-etc/

jh

@AstoundingHost said: Did a quick search and couldn't find any results so I thought I'd go ahead & make a thread. Post your disk I/O results here.

You need to learn how to search properly - there are hundreds of threads about this.

BlazeMuis

http://www.lowendtalk.com/search?Search=disk+speed

prometeus

@serverbear said: IOPing

Iozone
Bonnie++
FIO
hdparm

These test are usually run on owned/dedicated system, remember that virtual machines share the I/O subsystem with dozens or hundreds of other neighbors and high I/O loads can affect production performances.

ServerSharp

My HDD copies at 100000000mb/s

ErawanArifNugroho

I was just about to add the IoZone + Bonnie to my vps benchmark.
But I saw Francisco post that we are not allowed to run those in a shared environment such vps. So I didn't use it (except the host ask me to do it, or allowing me to run it)

For a hammering test, I run all of this :

• IoZone
• Bonnie
• Prime95
• UnixBench
  and some hard benchmark which caused load to 600.

So I just use normal benchmark like serverbear did

Jacob

100% Pure IDE Power!

dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 21.2225 s, 50.6 MB/s

Your all Jelous, Ofcourse...

Taz

I get around 15MB/S on my USB. Jelly ?

dmmcintyre3

way too slow, submitted a ticket complaining. @prometeus needs to pick better hardware.

dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 2.57935 s, 416 MB/s

laaev

Our new SSD VPS nodes in InterNap Dallas:

[root@vetest /]# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync;unlink test
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 1.25966 s, 852 MB/s

jcaleb

@FTN_Kevin said: 852 MB/s

wow

Randy

now that i looked back, i laughed at my I/O LOL

rds100

@serverbear make some shell script which downloads / compiles / installs the required tools and then runs the tests and summarizes the results?

Victor

# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm test
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 3.89631 s, 276 MB/s
rm: remove regular file `test'? y

BlazeMuis

My VPS from @prometeus

dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm test
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 11.1712 s, 96.1 MB/s

I thought it would be more

john

dd if=/dev/zero of=iotest bs=64k count=16k conv=fdatasync && rm -rf iotest
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 1.41549 s, 759 MB/s

Let's also share ioping results.

ioping -c 10
request=1 time=0.0 ms
request=2 time=0.1 ms
request=3 time=0.1 ms
request=4 time=0.1 ms
request=5 time=0.1 ms
request=6 time=0.1 ms
request=7 time=0.1 ms
request=8 time=0.1 ms
request=9 time=0.1 ms
request=10 time=0.1 ms
10 requests completed in 9002.1 ms, 10730 iops, 41.9 mb/s

ErawanArifNugroho

@joodle said: My VPS from @prometeus

Which node are you? PM14?

BlazeMuis

@ErawanArifNugroho said: Which node are you? PM14?

I'm on PM12

prometeus

@joodle said: I'm on PM12

PM12 run on a bit old but rock solid fiber channel SAN, which handle loads without problems. sequential speed isn't everything

BlazeMuis

@prometeus said: PM12 run on a bit old but rock solid fiber channel SAN, which handle loads without problems. sequential speed isn't everything

Yeah, Never had a problem with it