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Joakim Zhang f7f6266daf MLK-24667-3 perf vendor: add bandwidth usage metric for i.MX8QM DDR Perf 
Add bandwidth usage metric for i.MX8QM DDR Perf.

Test Report:
------------------------------------------------------
root@imx8qmmek:~# ./perf list metric

List of pre-defined events (to be used in -e):

Metrics:

  imx8qm-ddr0-all-r
       [imx8qm: bytes of all masters read from ddr0]
  imx8qm-ddr0-all-w
       [imx8qm: bytes of all masters write to ddr0]
  imx8qm-ddr0-bandwidth-usage
       [imx8qm: percentage of bandwidth usage for ddr0]
  imx8qm-ddr1-all-r
       [imx8qm: bytes of all masters read from ddr1]
  imx8qm-ddr1-all-w
       [imx8qm: bytes of all masters write to ddr1]
  imx8qm-ddr1-bandwidth-usage
       [imx8qm: percentage of bandwidth usage for ddr1]
------------------------------------------------------
root@imx8qmmek:~# ./perf stat -a -I 1000 -M imx8qm-ddr0-bandwidth-usage dd if=/dev/zero of=/dev/null bs=1M count=1000000
     1.000137560            8403160      imx8_ddr0/read-cycles/    #     11.9 %  imx8qm-ddr0-bandwidth-usage
     1.000137560           86499449      imx8_ddr0/write-cycles/
     1.000137560         1000137560 ns   duration_time
     2.000542875            8818984      imx8_ddr0/read-cycles/    #     10.5 %  imx8qm-ddr0-bandwidth-usage
     2.000542875           74883499      imx8_ddr0/write-cycles/
     2.000542875         1000405315 ns   duration_time
     3.000839188            8604400      imx8_ddr0/read-cycles/    #      9.6 %  imx8qm-ddr0-bandwidth-usage
     3.000839188           68284175      imx8_ddr0/write-cycles/
     3.000839188         1000296313 ns   duration_time
--------------------------------------------------------
root@imx8qmmek:~# ./perf stat -a -I 1000 -M imx8qm-ddr1-bandwidth-usage dd if=/dev/zero of=/dev/null bs=1M count=1000000
     1.000129435           15152856      imx8_ddr1/read-cycles/    #     14.5 %  imx8qm-ddr1-bandwidth-usage
     1.000129435          100669236      imx8_ddr1/write-cycles/
     1.000129435         1000129435 ns   duration_time
     2.000521875           15463356      imx8_ddr1/read-cycles/    #     13.4 %  imx8qm-ddr1-bandwidth-usage
     2.000521875           91710077      imx8_ddr1/write-cycles/
     2.000521875         1000392440 ns   duration_time
     3.000794688           15773560      imx8_ddr1/read-cycles/    #     12.7 %  imx8qm-ddr1-bandwidth-usage
     3.000794688           85948507      imx8_ddr1/write-cycles/
     3.000794688         1000272813 ns   duration_time

Reviewed-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
 		2020-09-02 02:21:42 +08:00
..
accounting tools/accounting/getdelays.c: fix netlink attribute length 2020-04-13 10:48:08 +02:00
arch x86/syscalls: Revert "x86/syscalls: Make __X32_SYSCALL_BIT be unsigned long" 2020-06-03 08:21:29 +02:00
bpf bpf: Print error message for bpftool cgroup show 2020-02-24 08:36:40 +01:00
build tools build: Add capability-related feature detection 2019-08-12 17:14:14 -03:00
cgroup iocost: protect iocg->abs_vdebt with iocg->waitq.lock 2020-05-14 07:58:27 +02:00
debugging
…
firewire treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
firmware Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
gpio tools: gpio: Fix out-of-tree build regression 2020-04-17 10:50:17 +02:00
hv - First round of vmbus hibernation support from Dexuan Cui. 2019-09-24 12:36:31 -07:00
iio tools: iio: add .gitignore 2019-08-18 20:45:57 +01:00
include tools lib: Fix builds when glibc contains strlcpy() 2020-02-05 21:22:40 +00:00
io_uring tools/io_uring: sync with liburing 2019-05-23 10:25:26 -06:00
kvm/kvm_stat tools/kvm_stat: Fix kvm_exit filter name 2020-02-11 04:35:36 -08:00
laptop treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505 2019-06-19 17:11:22 +02:00
leds leds: core: Add support for composing LED class device names 2019-07-25 20:07:52 +02:00
lib libbpf: Extract and generalize CPU mask parsing logic 2020-05-20 08:20:40 +02:00
memory-model tools/memory-model: Fix data race detection for unordered store and load 2019-12-31 16:43:40 +01:00
nfsd
…
objtool objtool: Fix stack offset tracking for indirect CFAs 2020-05-14 07:58:29 +02:00
pci tools: PCI: Fix fd leakage 2020-01-17 19:48:54 +01:00
pcmcia treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 247 2019-06-19 17:09:08 +02:00
perf MLK-24667-3 perf vendor: add bandwidth usage metric for i.MX8QM DDR Perf 2020-09-02 02:21:42 +08:00
power tools/power turbostat: Fix 32-bit capabilities warning 2020-04-08 09:08:39 +02:00
scripts tools: Let O= makes handle a relative path with -C option 2020-04-01 11:02:00 +02:00
spi treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 178 2019-05-30 11:29:19 -07:00
testing selftests/ftrace: Return unsupported if no error_log file 2020-06-17 16:40:35 +02:00
thermal/tmon treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 89 2019-05-24 17:37:52 +02:00
time treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
usb usbip: Fix unsafe unaligned pointer usage 2020-02-24 08:36:44 +01:00
virtio tools/virtio: xen stub 2019-10-13 09:38:27 -04:00
vm tools/vm: fix cross-compile build 2020-04-29 16:33:15 +02:00
wmi treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
Makefile tools: Keep list of tools in alphabetical order 2019-08-14 10:59:59 -03:00