NRF52 BLE HID packet rate problem

[Dudarion]

Hello everyone!
I'm creating BLE HID controller, where high packet rate is important. I expect about 100 packets per second.
But when I try to launch hid mouse or hid keyboard example, the maximum rate is 34 pps. I tried to make gamepad device and custom hid device, but result is still 34 pps.
Connection interval is set to minumum

setConnInterval(6, 12);

Also I tried to connect to different hosts (windows 10, android, iphone) - result is the same.
But when a tried BLE MIDI example, maximum packet rate is more than 100 pps, and it is real packets, I can read it on my laptop.
I'm asking for help in searching for the bottleneck in hid profile.
Thank you!

Here are my input characteristic properties:

chr_input.setUuid(UUID16_CHR_REPORT);
chr_input.setProperties(CHR_PROPS_READ | CHR_PROPS_NOTIFY);
chr_input.setPermission(SECMODE_ENC_NO_MITM, SECMODE_NO_ACCESS);
chr_input.setReportRefDescriptor(0, REPORT_TYPE_INPUT);

chr_input.setFixedLen( 10 );
chr_input.begin();

[Simonr]

Hi

The number of packets you will be able to send per second will be limited by the size of these packets. Am I correct in assuming each packet is 10 bytes? In a connection between two Nordic devices there will (in theory) not be any upper limit on the number of packets that can be sent in one connection interval, other than the total time it takes to send them. Depending on the device communicating with, there will likely be some limitations to this though

You can check out this guide for some general ideas for how to best maximize the throughput of your BLE application.

Best regards,

Simon

[Dudarion]

Thank you for your answer, but my problem is not in number of bytes per second, but in number of packets per second. My packets are small (you are right, it is 10 bytes), but I need to send them to my PC in realtime with maximum rate. 

And I know that usual BLE mouse works in much higher rates, than 34 pps, so the problem should be in my software.