https://devzone.nordicsemi.com/f/nordic-q-a/56874/realistic-maximum-transfer-speed-rttHello, what is the realistic maximum speed achievable over RTT on the 52840dk (using SEGGER_RTT_printf) to RTT Logger? I have tried modifying frequency and NRF_LOG_BACKEND_RTT_TEMP_BUFFER_SIZE but is getting no where near the specified value. en-USTelligent Community 13Thu, 23 Jan 2020 13:19:19 GMThttps://devzone.nordicsemi.com/thread/230615?ContentTypeID=1Thu, 23 Jan 2020 13:19:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:59ad4cae-5fd0-476a-86b4-521c5875f449J&#248;rgen Holmefjord<p>Hi,</p> <p>I do not think we have any performance measurements for the Segger RTT functions, these are delivered by Segger and not developed by Nordic. We do have some<a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/lib_nrf_log.html?cp=7_1_3_26_4#nrf_log_performance"> performance numbers for RTT logging through RTT with NRF_LOG module</a> which could be relevant. You can see that the number of arguments highly affects the performance of in-place RTT processing.</p> <p>Are you passing many arguments to the&nbsp;<span>SEGGER_RTT_printf() function? Have you tested with a static buffer and calling&nbsp;SEGGER_RTT_Write instead to see if this affects performance?</span></p> <p><span>Best regards,<br />Jørgen</span></p><div style="clear:both;"></div>