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Update readme: fix demo

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Alexey Avramov 2019-09-01 12:03:18 +09:00
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README.md
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@ -35,18 +35,22 @@ Also look at [Why are low memory conditions handled so badly?](https://www.reddi
## Some features
- Sending the SIGTERM signal is default corrective action. If the victim does not respond to SIGTERM, with a further drop in the level of memory it gets SIGKILL.
- Customizing victim selection: impact on the badness of processes via matching their names, cgroup_v1, cgroup_v2, exe realpathes, environs, cmdlines and euids with specified regular expressions
- Sending the SIGTERM signal is default corrective action. If the victim does not respond to SIGTERM, with a further drop in the level of memory it gets SIGKILL;
- Customizing victim selection: impact on the badness of processes via matching their names, cgroup_v1, cgroup_v2, exe realpathes, environs, cmdlines and euids with specified regular expressions;
- Customizing corrective actions: if the name or cgroup_v1 of the victim matches a certain regex pattern, you can run any command instead of sending the SIGTERM signal (the default corrective action) to the victim. For example:
- `sysmemctl restart foo`
- `kill -INT $PID` (you can override the signal sent to the victim, $PID will be replaced by the victim's PID)
- `kill -TERM $PID && script.sh` (in addition to sending any signal, you can run a specified script)
- `sysmemctl restart foo`;
- `kill -INT $PID` (you can override the signal sent to the victim, $PID will be replaced by the victim's PID);
- `kill -TERM $PID && script.sh` (in addition to sending any signal, you can run a specified script).
- GUI notifications:
- Notification of corrective actions taken and displaying the name and PID of the victim
- Low memory warnings (displays available memory)
- [zram](https://www.kernel.org/doc/Documentation/blockdev/zram.txt) support (`mem_used_total` as a trigger)
- [PSI](https://lwn.net/Articles/759658/) ([pressure stall information](https://facebookmicrosites.github.io/psi/)) support ([demo](https://youtu.be/2m2c9TGva1Y))
- Easy configuration with a commented [config file](https://github.com/hakavlad/nohang/blob/master/nohang.conf)
- Notification of corrective actions taken and displaying the name and PID of the victim;
- Low memory warnings (displays available memory).
- [zram](https://www.kernel.org/doc/Documentation/blockdev/zram.txt) support (`mem_used_total` as a trigger);
- [PSI](https://lwn.net/Articles/759658/) ([pressure stall information](https://facebookmicrosites.github.io/psi/)) support;
- Easy configuration with a commented [config file](https://github.com/hakavlad/nohang/blob/master/nohang.conf).
## Demo
Nohang v0.1 prevents Out Of Memory with GUI notifications: ([https://youtu.be/ChTNu9m7uMU](https://youtu.be/ChTNu9m7uMU)).
## Requirements