What's your worst disk I/O of your VPS?

littleguy

@William said: Some VPS in Sweden:

Which one? VPS in Sweden are usually really expensive so it'd be nice to know what provider still manages these awful results.

William

Oderland. But it is a 23EUR yearly plan, so im not complaining.
DNS needs no diskio anyway.

Shadow

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, 2.95786 seconds, 363 MB/s

littleguy

@Shadow said: 363 MB/s

Is that your worst disk I/O? Showoff. :P

Shadow

@littleguy said: Is that your worst disk I/O? Showoff. :P

:D sorry i was think test your i/o

littleguy

@Shadow said: :D sorry i was think test your i/o

You didn't even write the provider, which makes the result completely useless. :P
At least write which provider and also what parameters you sent to dd.

Spirit

@William said: Oderland. But it is a 23EUR yearly plan, so im not complaining.

That's strange, I never ever got under 25 MB/s here and even with that vps doesn't seems unresponsive even a bit. Maybe you should check it once again or/and contact them.

dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync && rm -rf test
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 34.5199 s, 31.1 MB/s

ioping -c 10 /
4096 bytes from / (simfs /vz/private/591): request=1 time=0.1 ms
4096 bytes from / (simfs /vz/private/591): request=2 time=0.2 ms
4096 bytes from / (simfs /vz/private/591): request=3 time=0.1 ms
4096 bytes from / (simfs /vz/private/591): request=4 time=0.2 ms
4096 bytes from / (simfs /vz/private/591): request=5 time=0.2 ms
4096 bytes from / (simfs /vz/private/591): request=6 time=0.1 ms
4096 bytes from / (simfs /vz/private/591): request=7 time=0.2 ms
4096 bytes from / (simfs /vz/private/591): request=8 time=0.2 ms
4096 bytes from / (simfs /vz/private/591): request=9 time=0.2 ms
4096 bytes from / (simfs /vz/private/591): request=10 time=0.2 ms

--- / (simfs /vz/private/591) ioping statistics ---
10 requests completed in 9002.6 ms, 6596 iops, 25.8 mb/s
min/avg/max/mdev = 0.1/0.2/0.2/0.0 ms

btw. plan cost 249.00 SEK = 28.1694 EUR/y (+ VAT, and they charge it even for non EU clients. Only VAT exception are companies with VAT number)

William

Even slower as before, and no - i did not pay VAT

root@ns4-se :: ~# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync && rm -rf test
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 491.225 s, 2.2 MB/s

no comment...

Francisco

@spirit - are they using virtuozzo?

Francisco

William

No, SolusVM.

TheHackBox

My Home Server with 2 30GB IDE drives in RAID 1.
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 77.8624 s, 13.8 MB/s

yomero

@TheHackBox said: My Home Server with 2 30GB IDE drives in RAID 1.

Seems very slow =/ That drives are faster afaik. Probably the RAID is killing them.

torsurfer

Xen at Vooservers, UK:

dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync && rm -rf test 16384+0 records in 16384+0 records out 1073741824 bytes (1.1 GB) copied, 87.2373 s, 12.3 MB/s

I've been bugging them about this, but they can't seem to improve the IO. Ah well.... I'm only using it for Openserver and also VPN, so that's ok. :-/

Spirit

@William said: Even slower as before

What's node you're on? I am at Node vz10 where 30 MB/s IO wait seems constant (wit some jump up here and there) and I don't feel any delays or slow performance at all. I think that you should really contact them.

ioping -c 10 /
4096 bytes from / (simfs /vz/private/591): request=1 time=0.1 ms
4096 bytes from / (simfs /vz/private/591): request=2 time=0.2 ms
4096 bytes from / (simfs /vz/private/591): request=3 time=0.2 ms
4096 bytes from / (simfs /vz/private/591): request=4 time=0.2 ms
4096 bytes from / (simfs /vz/private/591): request=5 time=0.2 ms
4096 bytes from / (simfs /vz/private/591): request=6 time=0.2 ms
4096 bytes from / (simfs /vz/private/591): request=7 time=0.2 ms
4096 bytes from / (simfs /vz/private/591): request=8 time=0.1 ms
4096 bytes from / (simfs /vz/private/591): request=9 time=0.2 ms
4096 bytes from / (simfs /vz/private/591): request=10 time=0.1 ms

--- / (simfs /vz/private/591) ioping statistics ---
10 requests completed in 9002.7 ms, 6116 iops, 23.9 mb/s
min/avg/max/mdev = 0.1/0.2/0.2/0.0 ms

~# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync && rm -rf test
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 18.8778 s, 56.9 MB/s

~# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync && rm -rf test
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 33.2687 s, 32.3 MB/s

Even 32.3 MB/s doesn't seem something good however it's actually very responsive vps. Packages are installed in seconds and with upgrade process I don't experience some annoying delays.

CPU model : Intel(R) Xeon(R) CPU E5420 @ 2.50GHz
Number of cores : 1
CPU frequency : 1246.940 MHz
Total amount of ram : 128 MB
Total amount of swap : 128 MB
System uptime : 47 days, 15:37,
Download speed : (14.7MB/s)
I/O speed : 72.7MB/s

quirkyquark

As expected, Virpus one of the worst overall but I haven't had a chance to nail down any dd benchmarks yet (because I/O is unstable).

Here's one from today, an MD5 hash of a 14GB file:

root@diseased:~# ./rhash64 -M --speed --percents filename
filename 100%
3d723035544e51f986a7b79f431bee00  filename

Calculated in 3064.821 sec, 4.45 MBps

Here's the matching ioping:

--- . (simfs /dev/simfs) ioping statistics ---
30 requests completed in 31382.2 ms, 13 iops, 0.0 mb/s
min/avg/max/mdev = 8.5/78.7/225.5/59.6 ms

But hey, you can use all 6 cores of the Phenom X6 1055T whenever your data has a chance to get to it!