Throughput Sample Gatt Write 247 Byte

RE: Throughput Sample Gatt Write 247 Byte

Vidar Berg — Fri, 03 May 2024 06:55:47 GMT

Hi,

The throughput sample requests an ATT MTU of 498 bytes. Thus, the maximum payload is 495 (498 - 3). The longer ATT MTU will slightly reduce the packet overhead.

RE: Throughput Sample Gatt Write 247 Byte

zeuhor — Thu, 02 May 2024 14:05:30 GMT

Hi Vidar,

Thanks now i get much higher values. I do seem to get however some lower values still. While for 495 I get around 1200, I only seem to ever get around 1050 for 244. Is there a reason for this? In my opinion it wouldn't make too much sense, as i am sending the maximum data per packet.

Or another question, do you know by chance why 495 is chosen by the sample?

Thanks,

RE: Throughput Sample Gatt Write 247 Byte

Vidar Berg — Thu, 02 May 2024 09:18:21 GMT

Hi,

The effective payload for LL packets with lengths of 251 bytes and an ATT MTU of 247 bytes is 244 bytes (247 - 3). The 3 bytes are used for the ATT header. Please try sending 244 bytes instead.

Best regards,

Vidar