Thanks for your feedback Daemeon!I'm a disappointed and I hope that some system
settings will allow to leverage NVMe :-/What i3 instances did you
benchmarked?Did you have a "preview access" to i3? Or was it available in a
specific region before the announcement?
Best,Romain
Le Mercredi 1 mars 2017 17h44, daemeon reiydelle <daeme...@gmail.com> a
écrit :
We did. Found that, even with (CentOS, Ubuntu both for application
compatibility reasons) that there is somewhat less IO and better CPU throughput
at the price point. At the time my optimization work for that client ended,
Amazon was looking at the IO issue, as perhaps the frame configurations needed
further optimization. this was 2 months ago. A very superficial (no kernel
tuning) done last month seems to indicate the same tradeoffs. Testing was
performed in both cases with C* stress tool and with CI test suites. Does this
help?
.......
Daemeon C.M. Reiydelle
USA (+1) 415.501.0198
London (+44) (0) 20 8144 9872
On Wed, Mar 1, 2017 at 3:30 AM, Romain Hardouin <romainh...@yahoo.fr> wrote:
Hi all,
AWS launched i3 instances few days ago*. NVMe SSDs seem very promising!
Did someone already benchmark an i3 with Cassandra? e.g. i2 vs i3If yes, with
which OS and kernel version?Did you make any system tuning for NVMe? e.g. PCIe
IRQ? etc.
We plan to make some benchmarks but Debian is not listed as a supported OS so
we have to upgrade our kernel and see if it works :PHere is what we have in
mind for the time being:* OS: Debian* Kernel: v4.9* IRQ: try several
configurationsAlso I would like to compare performances between our Debian AMI
and a standard AWS Linux AMI.
Thanks!
[*] https://aws.amazon.com/fr/ blogs/aws/now-available-i3-
instances-for-demanding-io- intensive-applications/
