xref: /rk3399_ARM-atf/docs/perf/psci-performance-n1sdp.rst (revision 96147cc84b7dd8b4f53c9fed553b0c61af060898) 
1Runtime Instrumentation Testing - N1SDP
2=======================================
3
4For this test we used the N1 System Development Platform (`N1SDP`_), which
5contains an SoC consisting of two dual-core Arm N1 clusters.
6
7The following source trees were used:
8
9- `TF-A v2.14-rc0`_
10- `TFTF v2.14-rc0`_
11
12Please see the Runtime Instrumentation :ref:`Testing Methodology
13<Runtime Instrumentation Methodology>` page for more details. The tests were ran
14using the
15`tf-psci-lava-instr/n1sdp-runtime-instrumentation,n1sdp-runtime-instrumentation:n1sdp-fip.tftf-firmware`
16configuration in CI.
17
18Results
19-------
20
21``CPU_SUSPEND`` to deepest power level
22~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
23.. table:: ``CPU_SUSPEND`` latencies (ns) to deepest power level in parallel (v2.14)
24
25    +---------+------+----------------+-----------------+----------------+
26    | Cluster | Core |   Powerdown    |      Wakeup     |  Cache Flush   |
27    +---------+------+----------------+-----------------+----------------+
28    |    0    |  0   | 3380.0(+1.81%) | 12480.0(-7.00%) | 340.0(+21.43%) |
29    +---------+------+----------------+-----------------+----------------+
30    |    0    |  1   | 3840.0(-4.48%) | 17940.0(-1.10%) | 220.0(-21.43%) |
31    +---------+------+----------------+-----------------+----------------+
32    |    1    |  0   | 2560.0(-5.19%) | 17140.0(-1.38%) | 160.0(-38.46%) |
33    +---------+------+----------------+-----------------+----------------+
34    |    1    |  1   | 3040.0(+2.70%) |  9960.0(-8.29%) | 140.0(-46.15%) |
35    +---------+------+----------------+-----------------+----------------+
36
37.. table:: ``CPU_SUSPEND`` latencies (ns) to deepest power level in parallel (v2.13)
38
39    +---------+------+-----------+----------+-------------+
40    | Cluster | Core | Powerdown |  Wakeup  | Cache Flush |
41    +---------+------+-----------+----------+-------------+
42    |    0    |  0   |  3320.00  | 13420.00 |    280.00   |
43    +---------+------+-----------+----------+-------------+
44    |    0    |  1   |  4020.00  | 18140.00 |    280.00   |
45    +---------+------+-----------+----------+-------------+
46    |    1    |  0   |  2700.00  | 17380.00 |    260.00   |
47    +---------+------+-----------+----------+-------------+
48    |    1    |  1   |  2960.00  | 10860.00 |    260.00   |
49    +---------+------+-----------+----------+-------------+
50
51.. table:: ``CPU_SUSPEND`` latencies (ns) to deepest power level in serial (v2.14)
52
53    +---------+------+----------------+-----------------+----------------+
54    | Cluster | Core |   Powerdown    |      Wakeup     |  Cache Flush   |
55    +---------+------+----------------+-----------------+----------------+
56    |    0    |  0   | 1640.0(+1.23%) |     10140.0     |     300.0      |
57    +---------+------+----------------+-----------------+----------------+
58    |    0    |  1   | 1980.0(+6.45%) | 10440.0(-1.69%) |     280.0      |
59    +---------+------+----------------+-----------------+----------------+
60    |    1    |  0   | 1640.0(-8.89%) | 10340.0(+1.77%) | 160.0(-50.00%) |
61    +---------+------+----------------+-----------------+----------------+
62    |    1    |  1   | 2280.0(+5.56%) |     10560.0     | 600.0(+20.00%) |
63    +---------+------+----------------+-----------------+----------------+
64
65.. table:: ``CPU_SUSPEND`` latencies (ns) to deepest power level in serial (v2.13)
66
67    +---------+------+-----------+----------+-------------+
68    | Cluster | Core | Powerdown |  Wakeup  | Cache Flush |
69    +---------+------+-----------+----------+-------------+
70    |    0    |  0   |  1620.00  | 10140.00 |    300.00   |
71    +---------+------+-----------+----------+-------------+
72    |    0    |  1   |  1860.00  | 10620.00 |    280.00   |
73    +---------+------+-----------+----------+-------------+
74    |    1    |  0   |  1800.00  | 10160.00 |    320.00   |
75    +---------+------+-----------+----------+-------------+
76    |    1    |  1   |  2160.00  | 10600.00 |    500.00   |
77    +---------+------+-----------+----------+-------------+
78
79``CPU_SUSPEND`` to power level 0
80~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
81
82.. table:: ``CPU_SUSPEND`` latencies (ns) to power level 0 in parallel (v2.14)
83
84    +---------+------+-----------------+------------------+----------------+
85    | Cluster | Core |    Powerdown    |      Wakeup      |  Cache Flush   |
86    +---------+------+-----------------+------------------+----------------+
87    |    0    |  0   | 1380.0(+72.50%) | 10600.0(-11.52%) | 240.0(-7.69%)  |
88    +---------+------+-----------------+------------------+----------------+
89    |    0    |  1   |  1660.0(+7.79%) | 15880.0(-3.41%)  | 140.0(-46.15%) |
90    +---------+------+-----------------+------------------+----------------+
91    |    1    |  0   |  1640.0(+1.23%) | 15200.0(-5.59%)  | 140.0(-53.33%) |
92    +---------+------+-----------------+------------------+----------------+
93    |    1    |  1   |  1780.0(-1.11%) |  9880.0(-6.26%)  | 140.0(-30.00%) |
94    +---------+------+-----------------+------------------+----------------+
95
96.. table:: ``CPU_SUSPEND`` latencies (ns) to power level 0 in parallel (v2.13)
97
98    +---------+------+-----------+----------+-------------+
99    | Cluster | Core | Powerdown |  Wakeup  | Cache Flush |
100    +---------+------+-----------+----------+-------------+
101    |    0    |  0   |   800.00  | 11980.00 |    260.00   |
102    +---------+------+-----------+----------+-------------+
103    |    0    |  1   |  1540.00  | 16440.00 |    260.00   |
104    +---------+------+-----------+----------+-------------+
105    |    1    |  0   |  1620.00  | 16100.00 |    300.00   |
106    +---------+------+-----------+----------+-------------+
107    |    1    |  1   |  1800.00  | 10540.00 |    200.00   |
108    +---------+------+-----------+----------+-------------+
109
110.. table:: ``CPU_SUSPEND`` latencies (ns) to power level 0 in serial (v2.14)
111
112    +---------+------+-----------------+-----------------+----------------+
113    | Cluster | Core |    Powerdown    |      Wakeup     |  Cache Flush   |
114    +---------+------+-----------------+-----------------+----------------+
115    |    0    |  0   |  1560.0(+8.33%) |  9680.0(-2.22%) |     300.0      |
116    +---------+------+-----------------+-----------------+----------------+
117    |    0    |  1   |  1900.0(+9.20%) |     10380.0     |     280.0      |
118    +---------+------+-----------------+-----------------+----------------+
119    |    1    |  0   |  1760.0(-2.22%) | 10220.0(+1.79%) |     340.0      |
120    +---------+------+-----------------+-----------------+----------------+
121    |    1    |  1   | 1760.0(-10.20%) |     10500.0     | 140.0(-68.18%) |
122    +---------+------+-----------------+-----------------+----------------+
123
124.. table:: ``CPU_SUSPEND`` latencies (ns) to power level 0 in serial (v2.13)
125
126    +---------+------+-----------+----------+-------------+
127    | Cluster | Core | Powerdown |  Wakeup  | Cache Flush |
128    +---------+------+-----------+----------+-------------+
129    |    0    |  0   |  1440.00  | 9900.00  |    300.00   |
130    +---------+------+-----------+----------+-------------+
131    |    0    |  1   |  1740.00  | 10400.00 |    280.00   |
132    +---------+------+-----------+----------+-------------+
133    |    1    |  0   |  1800.00  | 10040.00 |    340.00   |
134    +---------+------+-----------+----------+-------------+
135    |    1    |  1   |  1960.00  | 10460.00 |    440.00   |
136    +---------+------+-----------+----------+-------------+
137
138``CPU_OFF`` on all non-lead CPUs
139~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
140
141``CPU_OFF`` on all non-lead CPUs in sequence then, ``CPU_SUSPEND`` on the lead
142core to the deepest power level.
143
144.. table:: ``CPU_OFF`` latencies (ns) on all non-lead CPUs (v2.14)
145
146    +---------+------+-----------------+-----------------+----------------+
147    | Cluster | Core |    Powerdown    |      Wakeup     |  Cache Flush   |
148    +---------+------+-----------------+-----------------+----------------+
149    |    0    |  0   |  1700.0(+3.66%) | 10020.0(-2.15%) |     300.0      |
150    +---------+------+-----------------+-----------------+----------------+
151    |    0    |  1   | 14440.0(+3.74%) | 17140.0(-3.16%) | 360.0(+20.00%) |
152    +---------+------+-----------------+-----------------+----------------+
153    |    1    |  0   | 13680.0(+1.03%) |     16680.0     | 260.0(-13.33%) |
154    +---------+------+-----------------+-----------------+----------------+
155    |    1    |  1   |     14260.0     | 17600.0(-3.72%) |     300.0      |
156    +---------+------+-----------------+-----------------+----------------+
157
158.. table:: ``CPU_OFF`` latencies (ns) on all non-lead CPUs (v2.13)
159
160    +---------+------+-----------+----------+-------------+
161    | Cluster | Core | Powerdown |  Wakeup  | Cache Flush |
162    +---------+------+-----------+----------+-------------+
163    |    0    |  0   |  1640.00  | 10240.00 |    300.00   |
164    +---------+------+-----------+----------+-------------+
165    |    0    |  1   |  13920.00 | 17700.00 |    300.00   |
166    +---------+------+-----------+----------+-------------+
167    |    1    |  0   |  13540.00 | 16740.00 |    300.00   |
168    +---------+------+-----------+----------+-------------+
169    |    1    |  1   |  14120.00 | 18280.00 |    300.00   |
170    +---------+------+-----------+----------+-------------+
171
172``CPU_VERSION`` in parallel
173~~~~~~~~~~~~~~~~~~~~~~~~~~~
174
175.. table:: ``CPU_VERSION`` latency (ns) in parallel on all cores (v2.14)
176
177    +----------+------+-------------------+
178    | Cluster  | Core |      Latency      |
179    +----------+------+-------------------+
180    |    0     |  0   |   140.0(+16.67%)  |
181    +----------+------+-------------------+
182    |    0     |  1   |   240.0(+20.00%)  |
183    +----------+------+-------------------+
184    |    1     |  0   |   220.0(+10.00%)  |
185    +----------+------+-------------------+
186    |    1     |  1   |   260.0(+8.33%)   |
187    +----------+------+-------------------+
188
189.. table:: ``CPU_VERSION`` latency (ns) in parallel on all cores (v2.13)
190
191    +-------------+--------+--------------+
192    |   Cluster   |  Core  |   Latency    |
193    +-------------+--------+--------------+
194    |      0      |   0    |    120.00    |
195    +-------------+--------+--------------+
196    |      0      |   1    |    200.00    |
197    +-------------+--------+--------------+
198    |      1      |   0    |    200.00    |
199    +-------------+--------+--------------+
200    |      1      |   1    |    240.00    |
201    +-------------+--------+--------------+
202
203--------------
204
205*Copyright (c) 2023-2025, Arm Limited. All rights reserved.*
206
207.. _TF-A v2.14-rc0: https://review.trustedfirmware.org/plugins/gitiles/TF-A/trusted-firmware-a/+/refs/tags/v2.14-rc0
208.. _TFTF v2.14-rc0: https://review.trustedfirmware.org/plugins/gitiles/TF-A/tf-a-tests/+/refs/tags/v2.14-rc0
209.. _user guide: https://gitlab.arm.com/arm-reference-solutions/arm-reference-solutions-docs/-/blob/master/docs/n1sdp/user-guide.rst
210.. _N1SDP: https://developer.arm.com/documentation/101489/latest
211