From 9d740d6380e5030f356e2811b14fe45684c793b1 Mon Sep 17 00:00:00 2001 From: Venkateswara Naralasetty Date: Mon, 27 May 2019 15:32:13 +0300 Subject: ath10k: Add wrapper function to ath10k debug ath10k_dbg() is called in ath10k_process_rx() with huge set of arguments which is causing CPU overhead even when debug_mask is not set. Good improvement was observed in the receive side performance when call to ath10k_dbg() is avoided in the RX path. Since currently all debug messages are sent via tracing infrastructure, we cannot entirely avoid calling ath10k_dbg. Therefore, call to ath10k_dbg() is made conditional based on tracing config in the driver. Trasmit performance remains unchanged with this patch; below are some experimental results with this patch and tracing disabled. mesh mode: w/o this patch with this patch Traffic TP CPU Usage TP CPU usage TCP 840Mbps 76.53% 960Mbps 78.14% UDP 1030Mbps 74.58% 1132Mbps 74.31% Infra mode: w/o this patch with this patch Traffic TP CPU Usage TP CPU usage TCP Rx 1241Mbps 80.89% 1270Mbps 73.50% UDP Rx 1433Mbps 81.77% 1472Mbps 72.80% Tested platform : IPQ8064 hardware used : QCA9984 firmware ver : ver 10.4-3.5.3-00057 Signed-off-by: Kan Yan Signed-off-by: Venkateswara Naralasetty Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/trace.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/net/wireless/ath/ath10k/trace.c') diff --git a/drivers/net/wireless/ath/ath10k/trace.c b/drivers/net/wireless/ath/ath10k/trace.c index 3ecdff17f64e..c7d4c97e6079 100644 --- a/drivers/net/wireless/ath/ath10k/trace.c +++ b/drivers/net/wireless/ath/ath10k/trace.c @@ -7,3 +7,4 @@ #define CREATE_TRACE_POINTS #include "trace.h" +EXPORT_SYMBOL(__tracepoint_ath10k_log_dbg); -- cgit v1.2.3