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sbc-bench v0.9.72 SKYWORTH E900V22C (Sun, 19 Apr 2026 14:10:38 +0000)
Distributor ID: Ubuntu
Description: Ubuntu 22.04.5 LTS
Release: 22.04
Codename: jammy
Build system: https://github.com/armbian/build.git, 25.05.0, Aml.S905l3a, meson-g12a, amlogic
/usr/bin/gcc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0
Uptime: 14:10:38 up 30 days, 2:05, 3 users, load average: 1.17, 0.47, 0.17, 46.8°C, 253389826
Linux 6.12.17-ophub (armbian) 04/19/26 _aarch64_ (4 CPU)
avg-cpu: %user %nice %system %iowait %steal %idle
0.08 0.00 0.02 0.00 0.00 99.90
Device tps kB_read/s kB_wrtn/s kB_dscd/s kB_read kB_wrtn kB_dscd
mmcblk2 0.13 0.89 3.94 2.27 2301524 10242109 5904208
zram0 0.00 0.00 0.00 0.00 2244 28 0
zram1 0.01 0.00 0.04 0.00 2048 116972 0
total used free shared buff/cache available
Mem: 1.9Gi 281Mi 1.3Gi 23Mi 295Mi 1.5Gi
Swap: 967Mi 0.0Ki 966Mi
Filename Type Size Used Priority
/dev/zram0 partition 990236 512 5
##########################################################################
Checking cpufreq OPP (Cortex-A53):
Cpufreq OPP: 1908 Measured: 1906 (1906.441/1906.396/1906.282)
Cpufreq OPP: 1800 Measured: 1798 (1798.460/1798.399/1798.379)
Cpufreq OPP: 1704 Measured: 1702 (1702.490/1702.436/1702.436)
Cpufreq OPP: 1608 Measured: 1606 (1606.442/1606.393/1606.361)
Cpufreq OPP: 1512 Measured: 1498 (1498.548/1498.443/1498.408)
Cpufreq OPP: 1398 Measured: 1396 (1396.496/1396.480/1396.450)
Cpufreq OPP: 1200 Measured: 1198 (1198.567/1198.538/1198.437)
Cpufreq OPP: 1000 Measured: 998 (998.515/998.465/998.427)
##########################################################################
Hardware sensors:
cpu_thermal-virtual-0
temp1: +46.6 C
ddr_thermal-virtual-0
temp1: +46.6 C
##########################################################################
Executing benchmark on cpu0 (Cortex-A53):
tinymembench v0.4.9-nuumio (simple benchmark for memory throughput and latency)
CFLAGS:
bandwidth test min repeats (-b): 2
bandwidth test max repeats (-B): 3
bandwidth test mem realloc (-M): no (-m for realloc)
latency test repeats (-l): 3
latency test count (-c): 1000000
==========================================================================
== Memory bandwidth tests ==
== ==
== Note 1: 1MB = 1000000 bytes ==
== Note 2: Test result is the best of repeated runs. Number of repeats ==
== is shown in brackets ==
== Note 3: Results for 'copy' tests show how many bytes can be ==
== copied per second (adding together read and writen ==
== bytes would have provided twice higher numbers) ==
== Note 4: 2-pass copy means that we are using a small temporary buffer ==
== to first fetch data into it, and only then write it to the ==
== destination (source -> L1 cache, L1 cache -> destination) ==
== Note 5: If sample standard deviation exceeds 0.1%, it is shown in ==
== brackets ==
==========================================================================
C copy backwards : 1970.8 MB/s (3, 5.7%)
C copy backwards (32 byte blocks) : 2001.0 MB/s (3, 0.8%)
C copy backwards (64 byte blocks) : 2012.7 MB/s (3, 0.3%)
C copy : 1913.2 MB/s (3, 0.1%)
C copy prefetched (32 bytes step) : 1519.8 MB/s (3, 0.3%)
C copy prefetched (64 bytes step) : 1738.2 MB/s (3, 0.3%)
C 2-pass copy : 1818.9 MB/s (3, 0.6%)
C 2-pass copy prefetched (32 bytes step) : 1368.7 MB/s (3, 0.3%)
C 2-pass copy prefetched (64 bytes step) : 1167.9 MB/s (2)
C scan 8 : 372.3 MB/s (3, 0.2%)
C scan 16 : 727.3 MB/s (3, 0.5%)
C scan 32 : 1372.6 MB/s (3, 0.4%)
C scan 64 : 2364.0 MB/s (3, 1.3%)
C fill : 7850.4 MB/s (3, 0.7%)
C fill (shuffle within 16 byte blocks) : 7873.2 MB/s (3, 0.8%)
C fill (shuffle within 32 byte blocks) : 7872.3 MB/s (3, 2.2%)
C fill (shuffle within 64 byte blocks) : 7868.3 MB/s (3, 0.8%)
---
libc memcpy copy : 2011.8 MB/s (2)
libc memchr scan : 2304.4 MB/s (3, 1.7%)
libc memset fill : 7868.4 MB/s (3, 0.8%)
---
NEON LDP/STP copy : 1996.9 MB/s (3, 0.2%)
NEON LDP/STP copy pldl2strm (32 bytes step) : 1375.2 MB/s (3, 0.9%)
NEON LDP/STP copy pldl2strm (64 bytes step) : 1759.1 MB/s (2)
NEON LDP/STP copy pldl1keep (32 bytes step) : 2423.6 MB/s (2)
NEON LDP/STP copy pldl1keep (64 bytes step) : 2433.1 MB/s (3, 0.2%)
NEON LD1/ST1 copy : 2018.1 MB/s (3, 0.2%)
NEON LDP load : 3352.8 MB/s (3, 1.0%)
NEON LDNP load : 2516.3 MB/s (3, 0.3%)
NEON STP fill : 7882.5 MB/s (3, 0.9%)
NEON STNP fill : 5118.8 MB/s (3, 2.2%)
ARM LDP/STP copy : 1989.3 MB/s (3, 0.4%)
ARM LDP load : 3344.1 MB/s (3, 0.7%)
ARM LDNP load : 2518.8 MB/s (3, 1.5%)
ARM STP fill : 7884.9 MB/s (3, 1.0%)
ARM STNP fill : 5028.4 MB/s (3, 0.8%)
==========================================================================
== Framebuffer read tests. ==
== ==
== Many ARM devices use a part of the system memory as the framebuffer, ==
== typically mapped as uncached but with write-combining enabled. ==
== Writes to such framebuffers are quite fast, but reads are much ==
== slower and very sensitive to the alignment and the selection of ==
== CPU instructions which are used for accessing memory. ==
== ==
== Many x86 systems allocate the framebuffer in the GPU memory, ==
== accessible for the CPU via a relatively slow PCI-E bus. Moreover, ==
== PCI-E is asymmetric and handles reads a lot worse than writes. ==
== ==
== If uncached framebuffer reads are reasonably fast (at least 100 MB/s ==
== or preferably >300 MB/s), then using the shadow framebuffer layer ==
== is not necessary in Xorg DDX drivers, resulting in a nice overall ==
== performance improvement. For example, the xf86-video-fbturbo DDX ==
== uses this trick. ==
==========================================================================
NEON LDP/STP copy (from framebuffer) : 252.4 MB/s (3, 0.2%)
NEON LDP/STP 2-pass copy (from framebuffer) : 265.5 MB/s (3, 0.2%)
NEON LD1/ST1 copy (from framebuffer) : 69.9 MB/s (2)
NEON LD1/ST1 2-pass copy (from framebuffer) : 71.2 MB/s (2)
ARM LDP/STP copy (from framebuffer) : 134.5 MB/s (2)
ARM LDP/STP 2-pass copy (from framebuffer) : 137.4 MB/s (3)
==========================================================================
== Memory latency test ==
== ==
== Average time is measured for random memory accesses in the buffers ==
== of different sizes. The larger is the buffer, the more significant ==
== are relative contributions of TLB, L1/L2 cache misses and SDRAM ==
== accesses. For extremely large buffer sizes we are expecting to see ==
== page table walk with several requests to SDRAM for almost every ==
== memory access (though 64MiB is not nearly large enough to experience ==
== this effect to its fullest). ==
== ==
== Note 1: All the numbers are representing extra time, which needs to ==
== be added to L1 cache latency. The cycle timings for L1 cache ==
== latency can be usually found in the processor documentation. ==
== Note 2: Dual random read means that we are simultaneously performing ==
== two independent memory accesses at a time. In the case if ==
== the memory subsystem can't handle multiple outstanding ==
== requests, dual random read has the same timings as two ==
== single reads performed one after another. ==
==========================================================================
block size : single random read / dual random read, [MADV_NOHUGEPAGE]
1024 : 0.0 ns / 0.0 ns
2048 : 0.0 ns / 0.0 ns
4096 : 0.0 ns / 0.0 ns
8192 : 0.0 ns / 0.0 ns
16384 : 0.0 ns / 0.0 ns
32768 : 0.1 ns / 0.0 ns
65536 : 3.7 ns / 6.1 ns
131072 : 5.8 ns / 8.5 ns
262144 : 7.1 ns / 9.3 ns
524288 : 16.0 ns / 25.0 ns
1048576 : 71.9 ns / 109.9 ns
2097152 : 105.7 ns / 142.0 ns
4194304 : 127.3 ns / 157.3 ns
8388608 : 138.2 ns / 164.0 ns
16777216 : 145.1 ns / 168.2 ns
33554432 : 149.3 ns / 170.4 ns
67108864 : 151.6 ns / 172.2 ns
block size : single random read / dual random read, [MADV_HUGEPAGE]
1024 : 0.0 ns / 0.0 ns
2048 : 0.0 ns / 0.0 ns
4096 : 0.0 ns / 0.0 ns
8192 : 0.0 ns / 0.0 ns
16384 : 0.0 ns / 0.0 ns
32768 : 0.1 ns / 0.0 ns
65536 : 3.7 ns / 6.1 ns
131072 : 5.7 ns / 8.6 ns
262144 : 7.1 ns / 9.6 ns
524288 : 9.1 ns / 11.4 ns
1048576 : 72.4 ns / 111.4 ns
2097152 : 106.5 ns / 145.1 ns
4194304 : 123.3 ns / 156.8 ns
8388608 : 131.0 ns / 158.1 ns
16777216 : 135.2 ns / 158.3 ns
33554432 : 137.9 ns / 161.3 ns
67108864 : 138.8 ns / 160.6 ns
##########################################################################
Executing ramlat on cpu0 (Cortex-A53), results in ns:
size: 1x32 2x32 1x64 2x64 1xPTR 2xPTR 4xPTR 8xPTR
4k: 2.121 2.110 1.580 1.574 1.574 1.574 2.165 4.394
8k: 2.099 2.098 1.574 1.575 1.574 1.574 2.164 4.393
16k: 2.101 2.102 1.575 1.574 1.574 1.575 2.166 4.395
32k: 2.102 2.101 1.578 1.577 1.577 1.577 2.166 4.402
64k: 13.69 12.95 12.32 12.89 12.37 12.95 18.50 35.44
128k: 13.57 14.01 13.55 13.73 13.51 13.79 20.10 39.76
256k: 14.48 15.12 14.84 15.08 14.78 14.98 20.30 41.07
512k: 42.44 50.27 39.46 48.95 42.91 57.97 73.59 130.0
1024k: 132.1 132.9 130.9 132.7 134.1 131.9 170.4 330.3
2048k: 141.7 141.0 141.1 140.8 140.6 140.7 170.6 330.5
4096k: 146.0 148.0 146.1 146.4 146.5 146.3 170.4 335.5
8192k: 146.5 147.1 146.8 148.5 146.4 147.2 173.6 342.3
16384k: 149.7 152.2 149.2 151.8 150.6 151.9 179.0 357.9
32768k: 153.6 156.2 152.2 155.7 152.6 156.8 180.6 361.3
65536k: 152.2 157.5 151.2 155.7 152.7 157.7 178.3 363.1
131072k: 153.3 160.0 151.6 156.0 155.7 166.7 182.7 357.8
##########################################################################
Executing benchmark twice on cluster 0 (Cortex-A53)
OpenSSL 3.0.2, built on 15 Mar 2022 (Library: OpenSSL 3.0.2 15 Mar 2022)
type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 16384 bytes
aes-128-cbc 142206.30k 439754.90k 904076.12k 1261116.07k 1422914.90k 1431142.40k
aes-128-cbc 142283.93k 439922.18k 904317.61k 1261359.45k 1424176.47k 1437204.48k
aes-192-cbc 136674.35k 396480.15k 744966.23k 976421.21k 1073026.39k 1080672.26k
aes-192-cbc 136600.71k 396458.37k 746271.49k 977031.85k 1073244.84k 1076956.79k
aes-256-cbc 132488.93k 367601.90k 648413.10k 818335.40k 885923.84k 890033.49k
aes-256-cbc 132425.79k 367573.38k 649866.07k 819148.80k 886011.22k 890301.10k
##########################################################################
Executing benchmark single-threaded on cpu0 (Cortex-A53)
7-Zip (a) [64] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
p7zip Version 16.02 (locale=C,Utf16=off,HugeFiles=on,64 bits,4 CPUs LE)
LE
CPU Freq: - 64000000 - - - - - - -
RAM size: 1934 MB, # CPU hardware threads: 4
RAM usage: 435 MB, # Benchmark threads: 1
Compressing | Decompressing
Dict Speed Usage R/U Rating | Speed Usage R/U Rating
KiB/s % MIPS MIPS | KiB/s % MIPS MIPS
22: 1076 100 1048 1048 | 20727 100 1770 1770
23: 1019 100 1039 1039 | 20250 100 1753 1753
24: 965 100 1039 1039 | 19767 100 1736 1735
25: 909 100 1039 1039 | 19281 100 1716 1716
---------------------------------- | ------------------------------
Avr: 100 1041 1041 | 100 1744 1744
Tot: 100 1392 1392
##########################################################################
Executing benchmark 3 times multi-threaded on CPUs 0-3
7-Zip (a) [64] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
p7zip Version 16.02 (locale=C,Utf16=off,HugeFiles=on,64 bits,4 CPUs LE)
LE
CPU Freq: - - - - - - - - -
RAM size: 1934 MB, # CPU hardware threads: 4
RAM usage: 882 MB, # Benchmark threads: 4
Compressing | Decompressing
Dict Speed Usage R/U Rating | Speed Usage R/U Rating
KiB/s % MIPS MIPS | KiB/s % MIPS MIPS
22: 2996 334 872 2915 | 79391 396 1711 6773
23: 2964 349 866 3021 | 77634 396 1696 6717
24: 2917 360 872 3137 | 75672 396 1679 6643
25: 2832 369 875 3234 | 73686 396 1657 6558
---------------------------------- | ------------------------------
Avr: 353 871 3077 | 396 1686 6673
Tot: 374 1279 4875
7-Zip (a) [64] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
p7zip Version 16.02 (locale=C,Utf16=off,HugeFiles=on,64 bits,4 CPUs LE)
LE
CPU Freq: - - - - - 256000000 512000000 - -
RAM size: 1934 MB, # CPU hardware threads: 4
RAM usage: 882 MB, # Benchmark threads: 4
Compressing | Decompressing
Dict Speed Usage R/U Rating | Speed Usage R/U Rating
KiB/s % MIPS MIPS | KiB/s % MIPS MIPS
22: 3068 340 879 2985 | 78618 392 1712 6707
23: 2973 349 868 3030 | 77694 396 1697 6723
24: 2918 360 872 3138 | 75796 396 1681 6654
25: 2844 371 875 3248 | 73470 395 1656 6539
---------------------------------- | ------------------------------
Avr: 355 873 3100 | 395 1687 6656
Tot: 375 1280 4878
7-Zip (a) [64] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
p7zip Version 16.02 (locale=C,Utf16=off,HugeFiles=on,64 bits,4 CPUs LE)
LE
CPU Freq: - - - - - - - - -
RAM size: 1934 MB, # CPU hardware threads: 4
RAM usage: 882 MB, # Benchmark threads: 4
Compressing | Decompressing
Dict Speed Usage R/U Rating | Speed Usage R/U Rating
KiB/s % MIPS MIPS | KiB/s % MIPS MIPS
22: 3067 339 879 2984 | 79337 396 1710 6769
23: 2964 348 868 3020 | 77747 396 1697 6727
24: 2916 359 873 3136 | 75841 396 1680 6658
25: 2834 370 874 3236 | 73655 396 1657 6555
---------------------------------- | ------------------------------
Avr: 354 873 3094 | 396 1686 6677
Tot: 375 1280 4886
Compression: 3077,3100,3094
Decompression: 6673,6656,6677
Total: 4875,4878,4886
##########################################################################
Testing maximum cpufreq again, still under full load. System health now:
Time CPU load %cpu %sys %usr %nice %io %irq Temp
14:21:37: 1908MHz 4.72 98% 1% 97% 0% 0% 0% 62.1°C
Checking cpufreq OPP (Cortex-A53):
Cpufreq OPP: 1908 Measured: 1906 (1906.464/1906.419/1906.419)
##########################################################################
Hardware sensors:
cpu_thermal-virtual-0
temp1: +56.4 C
ddr_thermal-virtual-0
temp1: +56.1 C
##########################################################################
Thermal source: /sys/class/hwmon/hwmon0/ (cpu_thermal)
System health while running tinymembench:
Time CPU load %cpu %sys %usr %nice %io %irq Temp
14:11:20: 1908MHz 1.20 0% 0% 0% 0% 0% 0% 49.8°C
14:11:30: 1908MHz 1.17 26% 0% 25% 0% 0% 0% 50.2°C
14:11:40: 1908MHz 1.14 25% 0% 25% 0% 0% 0% 49.6°C
14:11:50: 1908MHz 1.19 26% 0% 25% 0% 0% 0% 51.6°C
14:12:00: 1908MHz 1.15 25% 0% 25% 0% 0% 0% 52.3°C
14:12:10: 1908MHz 1.13 25% 0% 25% 0% 0% 0% 51.1°C
14:12:21: 1908MHz 1.11 26% 0% 25% 0% 0% 0% 51.5°C
14:12:31: 1908MHz 1.09 26% 0% 25% 0% 0% 0% 50.4°C
14:12:41: 1908MHz 1.08 25% 0% 25% 0% 0% 0% 50.0°C
14:12:51: 1908MHz 1.06 25% 0% 24% 0% 0% 0% 50.0°C
System health while running ramlat:
Time CPU load %cpu %sys %usr %nice %io %irq Temp
14:12:57: 1908MHz 1.06 0% 0% 0% 0% 0% 0% 51.5°C
14:13:00: 1908MHz 1.06 25% 0% 25% 0% 0% 0% 49.7°C
14:13:03: 1908MHz 1.05 25% 0% 25% 0% 0% 0% 50.5°C
14:13:06: 1908MHz 1.05 26% 0% 25% 0% 0% 0% 52.0°C
14:13:09: 1908MHz 1.05 26% 0% 25% 0% 0% 0% 50.4°C
14:13:12: 1908MHz 1.04 25% 0% 25% 0% 0% 0% 50.1°C
14:13:15: 1908MHz 1.04 25% 0% 25% 0% 0% 0% 49.9°C
14:13:18: 1908MHz 1.04 25% 0% 25% 0% 0% 0% 49.8°C
14:13:21: 1908MHz 1.04 26% 0% 24% 0% 0% 0% 49.9°C
14:13:24: 1908MHz 1.04 25% 0% 25% 0% 0% 0% 50.0°C
14:13:27: 1908MHz 1.03 26% 0% 25% 0% 0% 0% 50.0°C
14:13:31: 1908MHz 1.03 25% 1% 24% 0% 0% 0% 50.2°C
System health while running OpenSSL benchmark:
Time CPU load %cpu %sys %usr %nice %io %irq Temp
14:13:32: 1908MHz 1.03 0% 0% 0% 0% 0% 0% 52.4°C
14:13:48: 1908MHz 1.02 25% 0% 25% 0% 0% 0% 50.6°C
14:14:04: 1908MHz 1.02 25% 0% 25% 0% 0% 0% 50.0°C
14:14:20: 1908MHz 1.01 25% 0% 25% 0% 0% 0% 50.9°C
14:14:36: 1908MHz 1.01 25% 0% 25% 0% 0% 0% 50.3°C
14:14:53: 1908MHz 1.08 25% 0% 25% 0% 0% 0% 50.9°C
14:15:09: 1908MHz 1.06 25% 0% 25% 0% 0% 0% 51.0°C
System health while running 7-zip single core benchmark:
Time CPU load %cpu %sys %usr %nice %io %irq Temp
14:15:21: 1908MHz 1.29 0% 0% 0% 0% 0% 0% 52.0°C
14:15:29: 1908MHz 1.26 25% 0% 24% 0% 0% 0% 50.4°C
14:15:37: 1908MHz 1.22 25% 0% 25% 0% 0% 0% 50.2°C
14:15:45: 1908MHz 1.20 25% 0% 24% 0% 0% 0% 50.2°C
14:15:53: 1908MHz 1.25 25% 0% 24% 0% 0% 0% 50.2°C
14:16:01: 1908MHz 1.21 25% 0% 24% 0% 0% 0% 50.4°C
14:16:09: 1908MHz 1.35 25% 0% 24% 0% 0% 0% 50.3°C
14:16:17: 1908MHz 1.30 25% 0% 24% 0% 0% 0% 50.2°C
14:16:25: 1908MHz 1.27 26% 0% 25% 0% 0% 0% 50.2°C
14:16:33: 1908MHz 1.23 25% 0% 24% 0% 0% 0% 50.3°C
14:16:41: 1908MHz 1.20 25% 0% 24% 0% 0% 0% 50.2°C
14:16:49: 1908MHz 1.18 25% 0% 24% 0% 0% 0% 50.2°C
14:16:57: 1908MHz 1.15 25% 0% 24% 0% 0% 0% 50.3°C
14:17:05: 1908MHz 1.14 25% 1% 24% 0% 0% 0% 50.3°C
System health while running 7-zip multi core benchmark:
Time CPU load %cpu %sys %usr %nice %io %irq Temp
14:17:12: 1908MHz 1.12 0% 0% 0% 0% 0% 0% 54.2°C
14:17:29: 1908MHz 1.89 93% 0% 92% 0% 0% 0% 56.7°C
14:17:46: 1908MHz 2.13 92% 1% 90% 0% 0% 0% 56.3°C
14:18:05: 1908MHz 2.76 94% 1% 92% 0% 0% 0% 58.2°C
14:18:22: 1908MHz 3.05 88% 2% 85% 0% 0% 0% 57.3°C
14:18:40: 1908MHz 3.25 98% 1% 96% 0% 0% 0% 59.2°C
14:18:58: 1908MHz 3.51 90% 1% 89% 0% 0% 0% 59.7°C
14:19:15: 1908MHz 3.63 93% 0% 92% 0% 0% 0% 56.3°C
14:19:33: 1908MHz 4.14 93% 1% 91% 0% 0% 0% 60.3°C
14:19:50: 1908MHz 4.19 88% 2% 86% 0% 0% 0% 59.5°C
14:20:08: 1908MHz 4.27 98% 1% 97% 0% 0% 0% 60.9°C
14:20:27: 1908MHz 4.14 92% 1% 91% 0% 0% 0% 61.2°C
14:20:44: 1908MHz 4.35 93% 1% 91% 0% 0% 0% 58.1°C
14:21:02: 1908MHz 4.45 93% 1% 91% 0% 0% 0% 61.7°C
14:21:19: 1908MHz 4.64 88% 2% 86% 0% 0% 0% 60.7°C
14:21:37: 1908MHz 4.72 98% 1% 97% 0% 0% 0% 62.1°C
##########################################################################
Linux 6.12.17-ophub (armbian) 04/19/26 _aarch64_ (4 CPU)
avg-cpu: %user %nice %system %iowait %steal %idle
0.09 0.00 0.02 0.00 0.00 99.89
Device tps kB_read/s kB_wrtn/s kB_dscd/s kB_read kB_wrtn kB_dscd
mmcblk2 0.13 0.89 3.96 2.27 2306332 10300573 5904208
zram0 0.00 0.00 0.00 0.00 2244 28 0
zram1 0.01 0.00 0.05 0.00 2056 117016 0
total used free shared buff/cache available
Mem: 1.9Gi 295Mi 1.3Gi 23Mi 300Mi 1.5Gi
Swap: 967Mi 0.0Ki 966Mi
Filename Type Size Used Priority
/dev/zram0 partition 990236 512 5
CPU sysfs topology (clusters, cpufreq members, clockspeeds)
cpufreq min max
CPU cluster policy speed speed core type
0 0 0 1000 1908 Cortex-A53 / r0p4
1 0 0 1000 1908 Cortex-A53 / r0p4
2 0 0 1000 1908 Cortex-A53 / r0p4
3 0 0 1000 1908 Cortex-A53 / r0p4
Architecture: aarch64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0-3
Vendor ID: ARM
Model name: Cortex-A53
Model: 4
Thread(s) per core: 1
Core(s) per cluster: 4
Socket(s): -
Cluster(s): 1
Stepping: r0p4
CPU max MHz: 1908.0000
CPU min MHz: 1000.0000
BogoMIPS: 48.00
Flags: fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
Vulnerability Gather data sampling: Not affected
Vulnerability Itlb multihit: Not affected
Vulnerability L1tf: Not affected
Vulnerability Mds: Not affected
Vulnerability Meltdown: Not affected
Vulnerability Mmio stale data: Not affected
Vulnerability Reg file data sampling: Not affected
Vulnerability Retbleed: Not affected
Vulnerability Spec rstack overflow: Not affected
Vulnerability Spec store bypass: Not affected
Vulnerability Spectre v1: Mitigation; __user pointer sanitization
Vulnerability Spectre v2: Not affected
Vulnerability Srbds: Not affected
Vulnerability Tsx async abort: Not affected
SoC guess: Amlogic Meson G12A (S905L3A) Revision 28:c (70:2)
DT compat: skyworth,e900v22c
amlogic,g12a
Compiler: /usr/bin/gcc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0 / aarch64-linux-gnu
Userland: arm64
Kernel: 6.12.17-ophub/aarch64
CONFIG_HZ=250
CONFIG_HZ_250=y
CONFIG_HZ_PERIODIC=y
CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_PREEMPT_VOLUNTARY=y
CONFIG_PREEMPT_VOLUNTARY_BUILD=y
##########################################################################
opp-table:
MHz -
MHz -
MHz -
MHz -
1000 MHz 731.0 mV
1200 MHz 731.0 mV
1398 MHz 761.0 mV
1512 MHz 791.0 mV
1608 MHz 831.0 mV
1704 MHz 861.0 mV
1800 MHz 981.0 mV
1908 MHz 1001.0 mV
opp-table-gpu:
125 MHz 800.0 mV
250 MHz 800.0 mV
286 MHz 800.0 mV
400 MHz 800.0 mV
500 MHz 800.0 mV
667 MHz 800.0 mV
800 MHz 800.0 mV
##########################################################################
Results validation:
* Measured clockspeed not lower than advertised max CPU clockspeed
* No swapping
* Background activity (%system) OK
Status of performance related governors found below /sys (w/o cpufreq):
* ffe40000.gpu: simple_ondemand / 125 MHz (powersave performance simple_ondemand / 125 250 286 400 500 667 800)