Messages in this thread | | | Date | Wed, 16 Nov 2022 17:49:43 +0800 | Subject | Re: [PATCH v10 1/2] perf/amlogic: Add support for Amlogic meson G12 SoC DDR PMU driver | From | Jiucheng Xu <> |
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> What about this description below? > > ``` > Add support for Amlogic Meson G12 Series SOC - DDR bandwidth PMU driver > framework and interfaces. The PMU can not only monitor the total DDR > bandwidth, but also individual IP module bandwidth. > ``` Thanks, Your description looks like much better. I agree with you. >> Example usage: >> >> $ perf stat -a -e meson_ddr_bw/total_rw_bytes/ -I 1000 sleep 10 >> >> - or - >> >> $ perf stat -a -e \ >> meson_ddr_bw/total_rw_bytes/,\ >> meson_ddr_bw/chan_1_rw_bytes,arm=1/ -I 1000 \ >> sleep 10 >> >> g12 SoC support 4 channels to monitor DDR bandwidth >> simultaneously. Each channel can monitor up to 4 IP modules >> simultaneously. >> >> For Instance, If you want to get the sum of DDR bandwidth >> from CPU, GPU, USB3.0 and VDEC. You can use the following >> command parameters to display. >> >> $ perf stat -a -e \ >> meson_ddr_bw/chan_2_rw_bytes,arm=1,gpu=1,usb3_0=1,nna=1/ -I 1000 \ >> sleep 10 >> >> Other events are supported, and advertised via perf list. > The demo example should have been outside the patch description, though > (more appropriate documentation as in patch [2/2]). > > Thanks. Okay, I will modify it in the next version.
-- Thanks, Jiucheng
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