2013/8/8 Hauke Mehrtens <ha...@hauke-m.de>: >> Should I play with some profiler? >> /proc/profile (and readprofile user space tool) doesn't support >> profiling modules :( > > You can compile bgmac into the kernel, the results you get should be the > same as you would get for the module. You just have to change > target/linux/brcm47xx/config-3.10 .
I built bgmac as a part of the kernel image and added System.map in the following way: > make V=s > mkdir target/linux/generic/base-files/boot/ > cp > build_dir/target-mipsel_uClibc-0.9.33.2/linux-brcm47xx/linux-3.6.11/System.map > target/linux/generic/base-files/boot/ > make V=s Then I tried profiling iperf client with the following command: readprofile -r; iperf -c 192.168.1.218; readprofile | sort -nr Unfortunately this resulted in 515 *unknown*, I'm not sure about this part. Apart from that there are many calls to the __copy_user_common Please note I run "iperf -c" in the OpenWrt, so it was mostly doing only TX (not much RX). -- Rafał _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
