I have tried to run a small (31 devices) dude installation on a RB1100AHx4. The data files are stored in a A1-class (100MB/s read, 50MB/s write) Sandisk SD card, formatted as EXT3. The card is only a few weeks old, has plenty of free space (14.6 free of 14.8GB). The database is vacuumed.
The router without the dude has around 5-9% CPU load, depending on time of day. When the dude is running, the CPU spikes up to 25% every few seconds, which cases delay spikes and packet loss throughout the network. The problems disappear when dude is shut down.
I used to run dude for the same network on a hEX Gr2, on a much slower card, with no problems. And the hEX was also routing at the same time.
Has anyone had a similar experience? Mikrotik, can you give any advice or look more into why this is happening?