- **Sophisticated alarming**<br/>
supports dynamic thresholds, hysteresis, alarm templates,
multiple role-based notification methods (such as email, slack.com,
- pushover.net, pushbullet.com telegram.org, twilio.com)
+ pushover.net, pushbullet.com telegram.org, twilio.com, messagebird.com)
- **Extensible**<br/>
you can monitor anything you can get a metric for,
usage, interrupts, softirqs, frequency, total and per core
- **Memory**<br/>
- RAM, swap and kernel memory usage, including KSM the kernel memory deduper
+ RAM, swap and kernel memory usage, KSM (Kernel Samepage Merging), NUMA
- **Disks**<br/>
per disk: I/O, operations, backlog, utilization, space