I'm using Ubuntu server 15.04 64 bit with Hyper-V generation 2 and have a few questions.
1. Which is the best IO scheduler to use? (The VM runs of a SSD) -I've read that noop and deadline are best for SSD's, is this true?
I've ran:
Which scheduler is used and how can I change this?
2. I've ran
Which outputs 1, which means my SSD is detected as being a HDD. How can I fix this?
3. Do I need to install Hyper-V Linux Integration Services on my VM, or is this already done automatically?
4. I've noticed the following in my syslog:
Someone suggested that I disable NTP updating in Ubuntu, but others suggest that I disable the time synchronization provided by Hyper-v.
What are the best practises for this case?
5. Are there any tweaks that can be done to reduce the ethernet (TCP and or UDP) latency, like disabling interrupt moderation on the network card?
1. Which is the best IO scheduler to use? (The VM runs of a SSD) -I've read that noop and deadline are best for SSD's, is this true?
I've ran:
Code:
cat /sys/block/sda/queue/scheduler
Which outputs: noop [deadline] cfq2. I've ran
Code:
cat /sys/block/sda/queue/rotational3. Do I need to install Hyper-V Linux Integration Services on my VM, or is this already done automatically?
4. I've noticed the following in my syslog:
Code:
Apr 23 22:53:04 vpn-france ntpdate[867]: step time server 91.189.94.4 offset -1.342616 sec
Apr 23 22:53:04 vpn-france systemd[1]: message repeated 6 times: [ Time has been changed]
...
Apr 23 22:56:49 vpn-france systemd[1]: message repeated 89 times: [ Time has been changed]What are the best practises for this case?
5. Are there any tweaks that can be done to reduce the ethernet (TCP and or UDP) latency, like disabling interrupt moderation on the network card?